Internal Medicine
Healthcare providers specializing in internal medicine
Below are providers registered under the 207R00000X taxonomy in the official NPI Registry.
📊 Healthcare Market Snapshot for Internal Medicine
Top States for Internal Medicine
US states with the highest concentration of internal medicine providers
Top Cities for Internal Medicine
US cities with the highest concentration of internal medicine providers
| Rank | City | State | Provider Count |
|---|---|---|---|
| #1 | Chicago | IL | 3,668 |
| #2 | New York | NY | 3,600 |
| #3 | Boston | MA | 3,082 |
| #4 | Houston | TX | 2,557 |
| #5 | Philadelphia | PA | 2,511 |
| #6 | Brooklyn | NY | 2,102 |
| #7 | Los Angeles | CA | 1,966 |
| #8 | Baltimore | MD | 1,756 |
| #9 | San Francisco | CA | 1,704 |
| #10 | Saint Louis | MO | 1,515 |
Longest-Registered Internal Medicine Providers
Providers with the most years of registration history as internal medicine specialists
Robert Bisbee, MD
Richard Thacker, D.O
Craig Coe, MD
Jill Potts, M.D
Alfred Vasta, M.D
Geetha Conjeevaram, M.D
Tanveer Akbar, MD
David Ross, MD
Ramon Ungab, M.D
Nabin Sharma, M.D
Recently Registered Internal Medicine Providers
Newly registered healthcare providers specializing in internal medicine
Healthcare Alliance Pc
Art Oncology Inc
Peter Klug, MD
Alicia Liu, MD
Sahana Srinivasan
Madison Hunter-bazin, MD
Bayview Health & Wellness, Llc
Jordan Zivan, MD
Miracle View Health Llc
New Horizon Health Medical Pa
Related Specialties in Allopathic & Osteopathic Physicians
Other healthcare specialties related to internal medicine
About Internal Medicine Providers
Internal medicine physicians, or internists, are medical doctors who specialize in the prevention, diagnosis, and treatment of complex diseases in adults. They treat a wide range of conditions, from chronic illnesses like diabetes, hypertension, and heart disease, to acute infections and multi-system disorders. Internists complete four years of medical school followed by at least three years of residency in internal medicine, earning an MD or DO degree. They are trained to solve diagnostic puzzles and manage patients with multiple co-occurring illnesses, frequently coordinating care with other medical subspecialists.
Finding an internal medicine provider's NPI number is a standard procedure for insurance verification, physician referrals, and medical billing. Internists use their NPI numbers to submit insurance claims, write prescriptions, and order diagnostic laboratory work. Insurance companies consult the NPPES database to verify the physician's active board certification, credential details, and state licensing status before paying claims. Patients and billing specialists can query the NPI registry to check network status, confirm practitioner details, and facilitate referrals to subspecialists without administrative delays.
Frequently Asked Questions about Internal Medicine
How many Internal Medicine providers are registered in the US?
There are currently 213,549 registered internal medicine providers in the United States, according to the official CMS NPI registry database.
Which state has the most Internal Medicine providers?
California has the highest concentration of internal medicine specialists, with 24,449 registered providers.
What is the oldest registered Internal Medicine provider?
The oldest registered internal medicine provider in the database is Robert Bisbee, MD, who registered on 05/23/2005 with NPI number 1750384806.
How do I find a Internal Medicine near me?
You can find internal medicine providers near you by browsing our directory by state or city, or by using the search bar at the top of the page to filter by name and state.
What credentials do Internal Medicine providers typically have?
Internal medicine physicians, or internists, are medical doctors who specialize in the prevention, diagnosis, and treatment of complex diseases in adults. They treat a wide range of conditions, from chronic illnesses like diabetes, hypertension, and heart disease, to acute infections and multi-system disorders. Internists complete four years of medical school followed by at least three years of residency in internal medicine, earning an MD or DO degree. They are trained to solve diagnostic puzzles and manage patients with multiple co-occurring illnesses, frequently coordinating care with other medical subspecialists.
How do I verify a Internal Medicine's NPI number?
You can verify any Internal Medicine's NPI number by searching on NPILookup using their name or NPI number. All data is sourced directly from the official CMS NPPES registry.
What is the taxonomy code for Internal Medicine?
The primary taxonomy code for Internal Medicine is 207R00000X.
Can Internal Medicine providers bill insurance?
Yes, Internal Medicine providers can bill health insurance. As licensed physicians, they must use their National Provider Identifier (NPI) number on all medical insurance claims, including private plans, Medicare, and Medicaid, to identify themselves as the rendering provider and ensure proper billing.