Top 10 Internal Medicine Billing Companies in USA
Streamline your practice, maximize reimbursements, and let experts handle the complexities of medical billing. Discover the leading companies trusted by internal medicine practices across the country.
Internal medicine is one of the most billing-heavy specialties in healthcare. Internists deal with a wide range of chronic conditions, multi-system diagnoses, care management codes, and complex E/M documentation, all at once. One miscoded visit, one missed modifier, and your practice quietly loses money every single month without anyone noticing. The 2024 Medicare Fee-for-Service data flagged a 21.8% improper payment rate for internal medicine claims, with over $306 million in misfiled reimbursements identified nationwide.
Choosing the right billing partner isn’t just about outsourcing paperwork. It’s about protecting your revenue, staying compliant, and getting paid faster. The internal medicine billing companies on this list have proven they understand the specific coding challenges this specialty faces, from HCC risk adjustment and Chronic Care Management to Modifier 25 same-day billing and Transitional Care Management. These are the ten that stood out based on experience, service depth, technology, and real-world results.
List of Top 10 Internal Medicine Billing Companies in USA
1
Medstates
| Field | Details |
|---|---|
| Experience | 9+ Years |
| Location | New York, USA |
| Pricing Model | Flexible / Percentage-Based |
| Key Strength | End-to-End RCM |
MedStates is a New York-based revenue cycle management company serving internal medicine practices across all 50 states. Their certified coders handle ICD-10 chronic disease coding, CPT office visit documentation, and care management reimbursements, delivering a 97% first-pass claim acceptance rate consistently.
With up to 40% faster reimbursements and a dedicated account manager assigned to every client, MedStates covers both revenue protection and long-term practice growth.
Why Choose Medstates?
MedStates offers the most comprehensive revenue cycle management for internal medicine practices. Their specialty-specific coders and dedicated account managers make them a strong choice for internal medicine practices that want faster collections and a growing patient base at the same time.
Still losing revenue to denied claims?
One wrong code or missed modifier can cost an internal medicine practice thousands – every single month.
MedStates handles the complexity so your practice gets paid right — and gets paid fast.
2
MediBill RCM LLC
| Field | Details |
|---|---|
| Experience | 10+ Years |
| Location | Houston, Texas, USA |
| Pricing Model | 3.99% Flat Rate |
| Key Strength | AI-Driven Claim Scrubbing |
MediBill RCM LLC is a Houston-based company with over 100 certified billers and coders. They specialize in internal medicine codes like 99213–99215 for office visits and 99490 for Chronic Care Management, using AI-driven claim scrubbing to catch errors before anything reaches the clearinghouse.
Pricing is a flat 3.99% of collections nationwide with no hidden fees. From credentialing and eligibility verification to denial management and AR recovery, they handle the full billing cycle and integrate with most EHR systems cleanly.
Why Choose MediBill RCM LLC?
Transparent flat-rate pricing and AI-powered claim scrubbing make MediBill RCM one of the smartest choices for internal medicine billing. Their certified coders understand care management and E/M coding inside out, which translates directly into fewer denials and faster reimbursements for your practice.
3
CureMD
| Field | Details |
|---|---|
| Experience | 29+ Years |
| Location | New York, NY, USA |
| Pricing Model | Performance-Based |
| Key Strength | 4 Million+ Rule Billing Engine |
CureMD has been in healthcare technology since 1997, serving over 123,000 users nationwide from their New York offices. For internal medicine, their billing platform handles chronic care management coding, diagnostic testing reimbursements, and preventive care documentation within a single integrated system.
Their rules engine contains over four million billing rules that automatically flag claim issues before submission. That pre-submission accuracy, paired with an integrated EHR and practice management platform, gives internal medicine practices a real edge in reducing denials.
Why Choose CureMD?
Nearly three decades of experience and a four-million-rule billing engine make CureMD a technology-first choice for internal medicine. The all-in-one platform, EHR, practice management, and billing, means fewer gaps in your workflow and fewer claims slipping through the cracks.
4
P3Care
| Field | Details |
|---|---|
| Experience | 20+ Years |
| Location | Ontario, California, USA |
| Pricing Model | Customizable |
| Key Strength | MIPS Reporting Specialist |
P3Care has been operating out of Ontario, California, since 2004, serving over 500 physicians across 40+ specialties. Internal medicine is one of their core areas, with dedicated coders handling CPT, ICD-10, and HCPCS coding for office visits and diagnostic procedures.
Their biggest strength is MIPS reporting. The Merit-based Incentive Payment System is one of the trickiest parts of internal medicine billing, and P3Care has a team built specifically to help practices capture maximum incentive bonuses year after year.
Why Choose P3Care?
MIPS compliance is where P3Care stands out most. Their dedicated reporting team helps internal medicine practices qualify for maximum incentive bonuses every year. Nationwide HIPAA-compliant billing and automated AR management round out a service set that’s hard to beat for busy practices.
5
Stat Medical Consulting
| Field | Details |
|---|---|
| Experience | 30+ Years |
| Location | Woodland Hills, California, USA |
| Pricing Model | Percentage-Based |
| Key Strength | Triple-Filtered Claims Process |
Stat Medical Consulting has been in the billing business since 1994, with over 30 years of experience. Based in Woodland Hills, California, they use Tebra’s IntelliClaims technology to proactively prevent denials by learning from past payer patterns, achieving a near-99% first-attempt clean claim rate.
Their triple-filtered claims process, coding review, documentation check, and payer rule validation run before every claim goes out. Clients report 20% to 30% revenue increases after switching, and they handle everything from CMS 1500 forms to full denial appeals.
Why Choose Stat Medical Consulting?
A near-99% clean claim rate and over 30 years of experience put Stat Medical among the most reliable internal medicine billing companies. Their triple-filtered process and errors-and-omissions insurance give practices both accuracy and a safety net that very few competitors can match.
6
MediBillMD
| Field | Details |
|---|---|
| Experience | 2+ Years |
| Location | Dallas, Texas, USA |
| Pricing Model | Competitive Flat Rate |
| Key Strength | Multi-Specialty Coding Depth |
MediBillMD launched in 2023 out of Dallas, Texas, and came in with strong numbers. Covering 45+ specialties, they’ve already hit a 98% clean claims rate, 97% first-pass ratio, and 96% collection rate, benchmarks that most established companies are still chasing.
Their end-to-end approach covers medical coding, credentialing, denial management, and clearinghouse enrollment. For internal medicine practices dealing with frequent denials or slow collections, MediBillMD’s competitive flat-rate pricing and performance-backed promises make them a serious contender.
Why Choose Stat Medical Consulting?
Numbers don’t lie, 98% clean claims, 97% first-pass, 96% collections. MediBillMD proves that a newer company can still deliver elite-level internal medicine billing. Their competitive pricing, multi-specialty coding depth, and end-to-end service make them worth a hard look for practices tired of average results.
7
Outsource Strategies International (OSI)
| Field | Details |
|---|---|
| Experience | 20+ Years |
| Location | Nationwide, USA |
| Pricing Model | FTE / Per-Request |
| Key Strength | 30–40% Cost Savings Guarantee |
Outsource Strategies International has been providing medical billing and coding services since 2002. Their team of AAPC and AHIMA-certified coders brings solid knowledge of CPT guidelines, ICD-10 coding, and payer-specific rules to every internal medicine claim they handle.
What sets OSI apart is their pricing. Rather than charging a percentage of collections, they use a flexible FTE or per-request model; you pay for what you actually need. That structure, plus guaranteed 30–40% cost savings, makes them one of the smartest billing picks.
Why Choose OSI?
OSI’s FTE-based pricing is unlike most competitors, you pay for the work done, not a slice of collections. For internal medicine practices looking to reduce overhead without sacrificing coding quality, that model, combined with certified expertise, makes them a standout choice.
8
Revele
| Field | Details |
|---|---|
| Experience | 25+ Years |
| Location | Missouri, USA |
| Pricing Model | Custom Pricing |
| Key Strength | Data-Driven RCM Optimization |
Revele has been in revenue cycle management since 1999, growing from a Missouri-based billing service into a 700+ employee operation covering 35+ specialties. They’re particularly well-regarded among eClinicalWorks users for how deeply they understand that platform’s workflows and internal medicine reporting.
What separates Revele is their data-driven approach. They don’t just file claims, they analyze your entire revenue cycle, identify where money is leaking, and build better workflows to close those gaps for good.
Why Choose Revele?
Revele goes beyond basic billing by analyzing your full revenue cycle and showing exactly where money is slipping. For eClinicalWorks users, their platform expertise combined with data-driven optimization makes them one of the strongest options for internal medicine practices focused on real growth.
9
Integrity Practice Solutions
| Field | Details |
|---|---|
| Experience | 14+ Years |
| Location | New Jersey, USA |
| Pricing Model | Percentage-Based |
| Key Strength | Personal Touch + In-Person Visits |
Integrity Practice Solutions has been helping practices improve their billing since 2011. Based in New Jersey with offices in Florida, their 300+ employees serve providers mainly across New York, New Jersey, Florida, Michigan, and Texas, with a heavy emphasis on hands-on, personal service.
Their billers review and submit claims within 24 hours and integrate with the most popular EHR systems, including eClinicalWorks, Kareo, and Medisoft. Their founders even visit client practices in person regularly, something almost no other billing company bothers to do.
Why Choose Integrity Practice Solutions?
In an industry full of faceless billing portals, Integrity actually shows up, literally. Their founders visit client practices regularly, and a 300+ person team handles claims within 24 hours. For internal medicine practices that value a real partnership over a portal, they deliver.
10
AMBSI Inc.
| Field | Details |
|---|---|
| Experience | 15+ Years |
| Location | Sayreville, New Jersey, USA |
| Pricing Model | Percentage-Based |
| Key Strength | 1,200+ Billing and Coding Experts |
AMBSI Inc. is one of the largest medical billing operations in the country, based in Sayreville, New Jersey. With over 1,200 billing and coding experts on staff, they handle high-volume internal medicine claims for hospitals, group practices, and independent providers nationwide.
Their team integrates with a wide range of EHR platforms, so switching is never complicated. AMBSI is fully HIPAA-compliant, and clients consistently report 25–30% savings on overhead costs, meaningful numbers for any internal medicine practice watching its bottom line.
Why Choose AMBSI Inc.?
Scale matters when your claim volume is high, and your coding complexity is real. AMBSI’s 1,200+ member team, full HIPAA compliance, and proven overhead savings make them a top-tier choice for internal medicine practices that need a billing partner that can truly keep up.
How to Choose the Right Internal Medicine Billing Company
Picking the right internal medicine billing company comes down to specialty experience, coding credentials, and clean claim rates. Ask for references from similar practices, understand the pricing model upfront, and make sure they integrate with your EHR. The best partner protects your revenue, not just processes claims.
