207R00000X
Internal Medicine Gastroenterology Taxonomy Code 207RG0100X
207RG0100X
Level III - Area of Specialization
33,018Registered providers
10Medicare specialty
26.0NUCC version
54States & territories
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Code Details for 207RG0100X
About Taxonomy Code 207RG0100X
The taxonomy code 207RG0100X identifies Internal Medicine Gastroenterology within the Allopathic & Osteopathic Physicians provider grouping. It is a Level III — Area of Specialization code, the most specific tier: it narrows the parent classification to a defined subspecialty.
NPI records show 33,018 registered providers whose primary or secondary taxonomy is this code. Of these, 7,013 (21%) are registered as organizations and 26,005 (79%) as individual providers. The states with the most internal medicine gastroenterology providers are California (3,286), New York (2,831), Florida (2,542). For Medicare enrollment, it crosswalks to specialty code 10 (Physician/Gastroenterology).
Taxonomy codes are self-selected by the provider based on their education and training; they describe the provider's type and specialty, not the specific services rendered.
Provider Composition & Statistics
33,018Total providers
7,013Organizations 21%
26,005Individuals 79%
5,854Female
20,149Male
2Undisclosed
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-07-12T00:00:00.
View all 33,018 providersInternal Medicine Gastroenterology Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
33,018
Alabama352Alaska47Arizona685Arkansas181California3,286Colorado567Connecticut476Delaware77District Of Columbia138Florida2,542Georgia790Guam2Hawaii132Idaho130Illinois1,299Indiana592Iowa198Kansas168Kentucky398Louisiana373Maine141Maryland916Massachusetts971Michigan860Minnesota588Mississippi217Missouri596Montana75Nebraska136Nevada175New Hampshire175New Jersey1,215New Mexico144New York2,831North Carolina1,071North Dakota52Ohio1,108Oklahoma232Oregon387Pennsylvania1,475Puerto Rico364Rhode Island152South Carolina514South Dakota67Tennessee611Texas2,214Utah230Vermont63Virgin Islands9Virginia789Washington753West Virginia158Wisconsin483Wyoming17
Frequently Asked Questions
207RG0100X questionsNPPES lists 33,018 registered providers with this taxonomy code (Internal Medicine Gastroenterology).
Both. About 21% of these providers are registered as organizations and 79% as individuals.
It crosswalks to Medicare specialty code 10 (Physician/Gastroenterology).
It is a Level III - Area of Specialization code in the NUCC Health Care Provider Taxonomy set. As an area of specialization, it falls under the Internal Medicine classification (parent code 207R00000X).
Use the "Providers by state" directory on this page to open the list of internal medicine gastroenterology providers registered in any U.S. state.
Source: National Uniform Claim Committee (NUCC) Health Care Provider Taxonomy code set, Version 26.0. Provider counts from NPPES. See nucc.org.
