Tired of dealing with lab billing errors and delayed insurance payments? Searching for a laboratory billing partner that can boost your revenue and efficiency? In today’s complex healthcare environment, accurate laboratory billing is crucial for maintaining cash flow, ensuring compliance, and minimizing claim denials. Each year, an estimated $10–12 billion in laboratory claims remain unpaid, with nearly 55% of denied claims left unaddressed.

Specialized billing companies have become essential partners, helping labs navigate coding complexities, reduce administrative burdens, and optimize financial performance. This guide highlights the top laboratory billing service providers in the USA, helping you find the right solution to streamline your revenue cycle management.

1. Nexus io

Nexus IO, a trusted medical billing company based in Phoenix, Arizona, specializes in expert laboratory billing services. Established in 2025, Our team has over 10 years of healthcare billing experience, optimizing revenue cycles for laboratories nationwide. We provide compliant medical billing, accurate claim processing, and revenue cycle management for diagnostic labs nationwide. Their proven results include 90% collection rate, 88% clean claim rate, and 30% A/R reduction. Partner with us for optimized reimbursements and reduced administrative burdens.

2. Lab Billing

Lab Billing company established in 2015 and headquartered in Williamsport, Pennsylvania, this mid-sized company (51–200 employees) specializes in laboratory billing services. The company delivers tailored billing solutions that boost lab revenue by up to 29% and reduce denials with a 99% clean claims rate. Their expert team ensures accurate coding, fast claim submissions, compliance, and complete revenue cycle management for growth-focused laboratories.

3. AltuMED

AltuMED is a medical billing company based in Southfield, Michigan, with a team of 11–50 employees. Since 2011, they have been helping labs manage their billing smoothly. They offer custom lab billing services, using accurate coding, electronic claim submission, and smart reporting tools. AltuMED works with all types of labs like genetic, toxicology, pathology, and molecular labs to reduce claim denials, improve cash flow, and follow all rules, so labs can focus on patient care.

4. BillingParadise

BillingParadise started in 2004 and is based in Atlanta, Georgia. It has 201 to 500 employees. The company helps labs with their billing using smart AI technology. They work with different labs like clinical, pathology, molecular, and toxicology labs. BillingParadise has a lot of experience and helps labs get fewer claim denials 24% less, get paid faster 50% quicker, and have almost all claims accepted the first time 98%. 

They follow strict rules to keep information safe. Their services include checking claims for errors, tracking payments in real-time, connecting with lab systems, and offering expert help anytime. This makes BillingParadise a trusted helper for labs to manage their billing well.

5. Prolis.

Prolis, founded in 2009, is headquartered in New Brunswick, New Jersey, with a team of 11-50 employees. They specialize in comprehensive laboratory medical billing services across the USA, serving small to large practices. With over 10 years of experience, ASSC achieves a 98% first-pass claim acceptance rate 3% above industry average and maintains less than 10% denial rates. 

They use 80% electronic submissions, advanced claim scrubbing technology, and provide detailed financial reporting. Services include laboratory billing, laboratory coding, laboratory credentialing, laboratory denial management, laboratory accounts receivable management, and revenue cycle management, ensuring faster payments and optimized practice revenue.

6. RCM Matter

RCM Matter, started providing laboratory RCM 2016 and based in Glendale, CA, has 501-1,000 employees. They have proven their lab billing services work well, earning an A+ rating from BBB and 4-star reviews from real customers. RCM Matter offers tailored laboratory billing solutions for a wide range of diagnostic tests. 

Their services include Blood Test Billing with accurate coding and faster reimbursements, Urine Analysis Billing for timely claim submissions, and Genetic Testing Billing with compliant processing of complex panels. They also specialize in Pathology Billing for lab diagnostics, Molecular Testing Billing with streamlined coding for advanced procedures, and COVID-19 Test Billing for fast, accurate payments during high-demand periods.

7. Physicians Group Management (PGM Billing)

PGM Billing established in 1981 and headquartered in Lyndhurst, New Jersey. PGM Billing is a mid-sized company with 51-200 employees. It was among the Inc. 5000 in 2011. PGM handles laboratory billing services, assisting laboratories in filing claims, correcting denials, improving coding, and following up on payments. For over 30 years, PGM has helped laboratories receive more payment from insurance, reduce billing errors, stay compliant, and access real-time reports through an easy-to-use interface and hands-on support.

8. Docs Medical Billing

Docs Medical Billing Company, founded in 2015, is an Madera, California-based firm with from 201 to 500 people on staff. It specializes in laboratory billing with a focus on improving revenue cycle management by accurate coding and fast claim approvals, thereby bringing down denials and increasing reimbursements for labs in all of fifty states. 

Their specialty includes pathology, toxicology, molecular, and clinical lab billing. They streamline lab billing for better financial performance with a 99% first pass and 98% clean claim rates. This is corroborated by a strong 5.0 rating on Google based on 14 reviews, signifying high client satisfaction.

9. Med USA

Med USA is a company based in Sandy, UT, and started in 1979. It has 201–500 employees and focuses on laboratory billing services. They provide flexible laboratory billing and revenue cycle solutions to help labs get paid faster and increase their income. 

With a 99% first-pass rate and 18% average revenue growth, Med USA helps find laboratory billing mistakes, lost revenue, and delays in follow-ups. Their team also handles compliance, charge posting, patient calls, and insurance work. Labs can trust them to make billing easier and more accurate. They have a 4.1 rating on Google with 14 reviews.

10. Phytest

Founded in 1998 and headquartered in Atlanta, GA, Phytest provides comprehensive laboratory medical billing services nationwide. Leveraging its proprietary Phytest Atlas platform, it offers automated claim scrubbing, LIS/LIMS integration, insurance verification, denial management, and custom financial reporting. 

With a dedicated U.S.-based patient services team, in-house development, and compliance with HIPAA and federal regulations, Phytest ensures faster reimbursements and fewer errors. Serving all lab specialties, Phytest delivers end-to-end RCM solutions with no startup fees and 11+ years average client retention.

Bottom Line

This list was made by looking at important things like how many claims get paid the first time, how much money the company helps bring in, how long they’ve worked in billing, how many clients stay with them, and if they follow the rules. Picking the right lab billing company can really help doctors by stopping claim denials, getting payments faster, and making more money. Don’t choose a company that doesn’t know much about lab billing, hides their prices, doesn’t follow rules, or doesn’t give reports. Choose a company with good laboratory billing experience, smart tools, great service, and a history of helping others do well.

Cardiology practices in the USA face significant financial challenges. Every year, they lose about $125 billion because of mistakes in billing, claims being rejected, payments being delayed, and patients owing more money. 

Insurance claim rejection rates are also high, with about 30% of initial claims denied 32% of these due to coding errors alone. Encouragingly, up to 86% of these denials could be prevented through accurate billing and streamlined processes. 

With such risks impacting revenue, the question arises, how can cardiology practices maximize their earnings and reduce revenue leakage? Using expert medical billing services and smart AI tools is becoming important to fix these issues and keep their finances strong.

We have prepared a list of the top 10 cardiology medical billing companies in the USA for you. This list includes companies known for their expertise, advanced technology, and high client satisfaction. It is designed to help you make an informed decision and choose the best billing partner for your cardiology practice with ease.

1. Nexus io

Nexus IO operates from Phoenix, Arizona, where they focus on helping cardiology practices get paid faster and more accurately. Their cardiology billing services are powered by a team of certified medical coders who handle the complex world of CPT and ICD-10 coding, process claims efficiently, and stay on top of insurance companies to reduce claim denials and keep money flowing into practices. What sets them apart is their impressive track record, they achieve over 90% collection rates for their cardiology clients.

The compliance department takes compliance seriously, ensuring every cardiovascular service is billed correctly as per Medicare or any other healthcare guidelines. Be it complex heart procedures such as placement of stents, simple EKG readings, or heart catheterizations, they are well versed in handling all. They would get approvals from insurance beforehand and also cross-check if the diagnosis codes match the actual procedure codes for the respective services performed, minimizing rejection of claims.

2. Coronis Health

Coronis Health has over 30 years of experience, with the headquarters in Jackson, Michigan, training 11,000+ experts, processing 31.2M plus claims in any given year, and managing $20B-plus in charges. Coronis is a cardiology medical billing and RCM company that specializes in custom solutions designed to increase accuracy and decrease administrative toll while effectively improving revenue. 

Services include AR management, automation tools, denial management reporting, financial reporting, systems integration, patient access management. Using certified coders with cutting-edge technology plus a data-driven perspective, Coronis will ensure absolute transparency, faster reimbursements, and optimized billing from cardiology practices across the nation.

3. Plutus Health

Plutus Health, based in Dallas, TX, has over 15 years of experience providing end-to-end cardiology medical billing and RCM services to more than 800 healthcare providers across the U.S. Their certified coders from AAPC are experts in all areas of cardiology, including invasive, non-invasive, cardiovascular, cardiothoracic, and interventional procedures. They ensure complete and accurate coding by following LCD guidelines and conducting thorough pre-billing audits, helping clients achieve a clean claim rate of over 95%.

With a strong focus on efficiency, Plutus Health guarantees that all charges are billed within 48 hours and payments are posted within 48 hours of receiving ERAs/EOBs. Denials are handled within 72 hours, significantly reducing accounts receivable (AR) days to just 25. Their proactive approach also helps bring denial rates down to less than or equal to 5%, leading to faster reimbursements and fewer revenue disruptions.

Thanks to their detailed workflow and technology-driven solutions, cardiology practices working with Plutus Health have seen their average contracted value collections reach 98%, while patient collection rates have improved by 35%. Plutus Health offers free revenue analysis and expert consultation to help practices optimize performance, reduce revenue leakage, and achieve consistent financial growth.

4. iMagnum Healthcare Solutions Inc.

Founded during 2017’s healthcare transformation era, iMagnum Healthcare Solutions brings together a quarter-century of revenue cycle mastery, specializing distinctively in cardiovascular practice billing services. Operating from three key locations with main headquarters in Katy, Texas. This organization harnesses cutting-edge artificial intelligence alongside robotic process automation to dramatically amplify billing operational performance.

iMagnum Healthcare Solutions has a 4.1-star Google rating from 72 reviews and electronic claim submissions within 48 hours. iMagnum supports multiple specialties like ABA, anesthesia, and dermatology. With around 198–245 employees, it reports revenue between $521K and $7.4M. 

iMagnum Healthcare Solutions specializes in cardiology billing-the most challenging with coding requirements and frequent errors, such as missing or incorrect modifiers. Their team ensures that all payer-specific guidelines are followed, including pre-authorizations and referrals. 

The focus is also on preventing denials of claims by using complete CPT codes and local coverage determination (LCD) rules. They then electronically submit claims within 48 hours to expedite revenue cycles for cardiology practices.

5. AltuMED

AltuMED is a trusted cardiology medical billing company based in Michigan, founded in 2011. With a 4.3-star rating on Google, clients praise their efficient and friendly service. They process claims with near-perfect accuracy (99% clean claims) and get 97% approved on the first try. Their services help doctors increase revenue by up to 30%, while keeping patients happy (98% satisfaction rate). AltuMED follows strict security rules (HIPAA, CMS) and has certified billing experts on their team.

AltuMED is very good at cardiology billing. They use smart AI technology and have a team of trained experts who follow all the rules. They interface with EHRs, charge full billing services, including from telehealth to credentialing. The selling points are the reduction of claim denials, increase in payments, and making the billing process easier for cardiologists so they have more time in front of patients rather than worrying about money.

6. Medcare MSO

Medcare MSO, started in 2012 and based in Irvine, California, is a trusted company in the USA that helps doctors with cardiology medical billing. They have more than 10 years of experience and a team of trained experts who handle everything from checking insurance to coding, sending claims, fixing denied claims, and collecting payments. 

Their special software works well with your current systems to reduce mistakes and get cardiology payments faster. Medcare MSO has good reviews, with a 4.7-star rating on Google for their Irvine office and 4 stars for their Santa Fe, New Mexico office. They have an 88% success rate for clean claims and can help increase your revenue by 15-20%. 

Their careful work and dedicated managers make sure your important cardiology claims don’t get lost or denied. Using Medcare MSO lets cardiology doctors focus more on patients and earn more money, making them a top choice for cardiology billing.

7. BillingParadise

Established two decades ago in the heart of Diamond Bar, California, BillingParadise emerged as a pioneering force within healthcare’s financial ecosystem, carving out specialized expertise in cardiovascular practice revenue optimization and comprehensive cardiac billing solutions management.

Recognized by Becker’s Hospital Review among the top 210 RCM companies and listed by Business News Daily as a top 20 medical billing service in 2019, they serve over 400 clients with a staff of 600 across four US locations. BillingParadise holds an A+ BBB rating and a 5-star Google Business Profile rating based on 1 review. 

These comprehensive cardiac billing solutions feature credentialed AAPC-CCC specialists operating continuously, achieving an exceptional 98% initial claim approval ratio. Organizations experience 40% operational expense reductions while maintaining seamless integration across leading EHR platforms, optimizing financial performance through specialized accounts receivable oversight, rejection resolution protocols, and Merit-based Incentive Payment System consultation.

8. Practicewithease

Practice With Ease is a reliable medical billing company that has been helping heart doctors with billing since 2006. They are based in East Rutherford, New Jersey, and work with over 100 medical practices. 

Their team includes trained coders who know how to bill correctly for heart-related services using CPT and ICD-10 codes. They work to reduce cardiology billing errors, get payments faster, and follow all healthcare rules. With smart software and strong knowledge of heart care, they help cardiologists earn more money and focus on treating patients. They also handle billing for brain and cancer care.

9. MGSI

MGSI Online is a Florida-based medical billing company founded in 2000, with over 30 years of experience, especially in cardiology billing. Located at 2810 W St. Isabel St #201, Tampa, FL 33607, MGSI serves over 600 physicians nationwide and earns an estimated $9.5–$10 million annually. 

The company has 37-44 employees and holds an A+ BBB rating. MGSI is HIPAA compliant and employs AAPC-certified coders who stay updated on LCDs, modifiers, and payer rules through ongoing education. With expertise in billing diagnostic, interventional, nuclear, pediatric cardiology, and Ansar testing, 

MGSI codes complex procedures like cardiac caths (93458–93461) and stents (92920–92941). Their commitment to compliance and accuracy sets them apart in the medical billing industry.

10. Physicians Revenue Group, Inc.

Physicians Revenue Group, Inc. (PRGMD) is a medical billing company that started in 1997. Their main office is in Downers Grove, Illinois. PRGMD team expert in helping heart doctors (cardiologists) with billing and coding. PRGMD has 20 years of experience in the cardiology billing industry.

They make sure claims are coded correctly, sent on time, and followed up if denied. PRGMD also uses modern billing tools and gives clear reports. They have a 4.2-star rating on Google and over 1,000 employees. Their services help heart clinics across the U.S. earn more and avoid billing problems.

Things You Must Know Before Choosing the Right Cardiology Billing Company

When selecting a revenue cycle management partner for your cardiovascular medicine practice, several critical factors to consider:

Experience in Cardiology Billing

Pick a company that knows cardiology billing well. They should understand specific procedures like stress tests and echocardiograms, which helps reduce claim denials and improve payment speed.

Use of Modern Technology

The billing company should use advanced software that works smoothly with your current system. They must also protect patient data and follow HIPAA rules.

Clear Communication and Transparency

Select a company that has transparent fees and services. They should be able to give you periodic reports and updates easily. They also ought to be able to provide a timely response to your queries and, if possible, suggestions to improve the billing system.

Cost and Return on Investment (ROI)

Never go for the cheapest; know the pricing mechanism: whether it is per claim, percentage of the claim, or flat fee. Hidden charges may also be somewhere. In contrast, a slightly expensive company, but with much experience, could bring in better revenue by eliminating many errors and delays.

Customer Support

Good customer service is essential. You should be able to contact them easily when issues arise. Also, check if they provide training for your staff to improve documentation and coding.

Look at Reviews and Success Stories

Check reviews and feedback from other cardiology practices. Positive reviews, case studies, and success stories can help you judge if the company is reliable.

Try Before You Commit

If possible, choose a company that offers a trial period or short contract. This lets you test their services before making a long-term decision.

A Long-Term Partnership

Choosing a billing company that understands your goals and wants to work with you in the long run is the best choice. A strong working relationship tends to equal better financial results and fewer headaches when it comes to billing.

Bottom Line

After extensive research and analysis, we’ve compiled a trusted list of the Top 10 Cardiology Medical Billing Companies in the USA, including names like Nexus IO, Coronis Health, Plutus Health, Medcare MSO, and others. 

These cardiology billing companies stand out for their coding accuracy, advanced technology, high claim acceptance rates, and deep cardiology expertise. This guide was created to save you time and help cardiology practices confidently select to outsource medical billing to reduce claim denials, boost revenue, and maintain financial health with ease.

DME billing means sending insurance claims for medical equipment like wheelchairs or oxygen machines. It includes a doctor’s prescription, insurance check, coding, and claim submission to get payment from Medicare or other insurance companies.

Let’s take an example, a patient has breathing problems. The doctor gives a prescription for an oxygen machine. The billing team checks if Medicare will pay, adds the right code (E1390), and sends the claim. Medicare reviews it and pays for the machine.

DME billing is tough due to complex codes, slow coverage checks, strict documentation, and varying payer rules, causing frequent claim denials. To handle these issues healthcare practices must consider a reputable DME billing company.

A good DME billing service can help healthcare providers handle these problems and get the most payment possible. In this article, we have listed some of the best DME medical billing companies to make it easier for healthcare practices.

1. Nexus io

Nexus io is a medical billing company based in Phoenix, Arizona, offering DME billing services to providers across 30 plus USA states. Their team handles every part of the billing process, including claim submission, insurance follow-ups, and proper documentation for both rented and purchased equipment. 

With a 90% collection rate and a 30% reduction in accounts receivable (A/R), they help DME providers improve cash flow and focus more on patient care. Nexus io’s services include accurate HCPCS coding, detailed claim audits, and full revenue cycle management. By following insurance company rules and reducing billing errors, they ensure faster payments and better financial results for healthcare practices.

2. Medwave

Medwave was established in 2000 and is based in Cranberry Township, PA. The company makes about $5 million in revenue, according to ZoomInfo. Medwave provides billing services for Durable Medical Equipment (DME) across the USA. Their services include certified coding, data entry, cleaning up old accounts, audit help, and custom reports.

At the same time, they make sure that billing is appropriately according to rules under Medicare, Medicaid, or private insurance. From handling the full billing process to reducing claim denials, Medwave assists DME providers to make more money and spend less time with the bills, thereby giving more time for patient care.

3. Medisys Data Solutions

Medisys Data Solutions, based in Delaware and founded in 2018, earns about $7.8 million in revenue. Medisys Data Solutions help with everything from clean claim submissions to faster payments. 

Medisys Data Solutions expertly manages complex DME billing tasks, including coding for both rentals and sales of medical equipment such as wheelchairs, oxygen tanks, and hospital beds.

Their team uses correct HCPCS codes and modifiers to avoid denials. They also do regular dme billing audits, follow up with doctors, and make sure all paperwork is complete.

4. Medbill

Medbill is a Pittsburgh, Pennsylvania based DME billing company. They have been providing service since 2005. Medbill earns approximately $7.8 million according to ZoomInfo. Medbill offers billing services to DME providers across the USA for products like wheelchairs, hospital beds, and CPAP machines.

The services provided include claim filing, unpaid bill inquiries, audit assistance, and bill coding corrections. They focus on curbing errors, following Medicare guidelines, and ensuring that payments arrive promptly. DME providers proceed to care for their patients and expand their business with the time they get freed by Medbill.

5. Sunknowledge Services Inc.

Sunknowledge Services Inc., started in 2006 and based in New York, is a leading company in DME (Durable Medical Equipment) billing. They earn around $550.1 million, according to ZoomInfo. This company helps doctors and clinics get paid for medical equipment like CPAP machines, oxygen tanks, and wheelchairs. Their skilled team handles coding, sending claims to insurance, following up on payments, and helping with audits.

6. MedHeave

MedHeave is a DME billing company based in Boston, Massachusetts, founded in 2019. With $5.7 million in revenue, they specialize in Durable Medical Equipment (DME) billing services for healthcare providers across the USA. 

The company has over 10 years of experience and serves all medical specialties including labs and pharmacies. They offer services like insurance verification, claim submission, and accounts receivable recovery. Medheave promises a 99.9% clean claim ratio, 30-50% fewer claim denials, and 35% increased revenue in the first month for their clients.

7. 3Gen Consulting

3Gen Consulting helps medical equipment suppliers located in Houston to get paid quickly by streamlining the paperwork for wheelchairs, oxygen tanks, and hospital beds. Since 2006, their main focus has been DME billing, which is more difficult than regular medical billing. 

Their team performs insurance verification, obtains authorizations, uses proper dme billing codes, files claims, and performs follow-up to ensure that payments are made. This ensures suppliers get paid quickly so that they can spend time assisting patients rather than working with insurance companies.

8. RCM Matter

RCM Matter is a DME billing company based in Glendale, California, earning under $5 million in revenue (per ZoomInfo). They help medical equipment providers get paid quickly by doing accurate billing and coding. 

Their team takes care of claims for CPAP machines, home care equipment, artificial limbs, braces, and mobility items like wheelchairs and scooters. RCM Matter works with many billing systems and offers both full and flexible billing support. Their goal is to reduce denials, speed up payments, and boost revenue for DME suppliers.

9. Medcare MSO

MedCare MSO is a medical billing company in Irvine, California, that has been helping DME (Durable Medical Equipment) providers since 2012. They make sure providers get paid faster and with fewer problems. Their trained billing team knows the right codes and rules for DME claims. 

They take care of hard tasks like checking documents, getting approvals, fixing denied claims, and making sure everything is done correctly. They also use smart tools to speed up the process. With MedCare MSO’s help, DME providers can focus more on patients, make fewer mistakes, and get better cash flow. Working with them makes billing easier and more efficient.

10. MediBillMD

MediBillMD is a Dallas, Texas based DME billing company, founded in 2023. They help providers get paid faster by offering expert billing services for medical equipment like wheelchairs and hospital beds. 

Their results include, claims paid in under 30 days, 10-15% revenue increase, 97% first-pass claim rate, 96% collection ratio, and 98% clean claims rate. Their certified coders handle coding, claims, denials, payments, and reports. MediBillMD uses advanced tools, follows rules, and offers low prices with a 1% promo rate in the first month. They serve providers across the USA.

Things to Consider Before Choosing the Right DME Billing Company in the USA

Medicare and Insurance Claims for DME

Before finalizing a DME billing service company, check their background in Medicare, Medicaid, and private insurance laws relating to durable medical equipment such as wheelchairs, oxygen equipment, and medical supplies.

Nursery DME Technology and Billing Software

Search for DME billing services that use state of the art EMR systems, have real-time tracking of DME claims, and maintain HIPAA-compliant management of patient- and equipment-related data.

Strong DME Denial Management and Appeals Handling

Choose DME billing agencies that have the proven experience to fix denied claims, handle prior authorization requests, and appeals, especially for those claims related to CPAP machines, mobility equipment, and other high-dollar equipment.

Transparent DME Billing Prices

Inquire about setup fees, monthly fees, and reporting methodology based on DME revenue cycle way performance.

Responsive Customer Support for DME Providers

Regardless of the support model, evaluate the turnaround times, whether DME clients are assigned dedicated account managers, the availability of training resources, and the frequency of regular reporting, all of which are crucial to supporting the growth of your medical equipment company.

Bottom Line

Finding the right DME billing company is crucial for healthcare providers who supply medical equipment like wheelchairs, oxygen machines, and CPAP devices. The best DME billing companies in the USA for 2025 offer specialized services including accurate HCPCS coding, Medicare compliance, and efficient claim submission processes.

Top performers like Nexus io, Medwave, and Medisys Data Solutions provide proven results with high collection rates and reduced claim denials. These companies handle complex DME billing challenges including prior authorizations, insurance verification, and appeals management. 

We listed these best DME billing providers but take some time to do your own research before choosing one. Then pick the company that gives you the best value for your DME billing needs.