207R00000X
Internal Medicine Nephrology Taxonomy Code 207RN0300X
207RN0300X
Level III - Area of Specialization
22,066Registered providers
11Medicare specialty
26.0NUCC version
55States & territories
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Code Details for 207RN0300X
About Taxonomy Code 207RN0300X
The taxonomy code 207RN0300X identifies Internal Medicine Nephrology 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 22,066 registered providers whose primary or secondary taxonomy is this code. Of these, 4,949 (22%) are registered as organizations and 17,117 (78%) as individual providers. The states with the most internal medicine nephrology providers are California (2,234), Texas (1,920), New York (1,534). For Medicare enrollment, it crosswalks to specialty code 11 (Physician/Internal Medicine).
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
22,066Total providers
4,949Organizations 22%
17,117Individuals 78%
5,137Female
11,980Male
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-07-12T00:00:00.
View all 22,066 providersInternal Medicine Nephrology Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
22,066
Alabama268Alaska31Arizona537Arkansas153California2,234Colorado317Connecticut220Delaware92District Of Columbia137Florida1,500Georgia692Guam4Hawaii102Idaho59Illinois808Indiana429Iowa131Kansas118Kentucky310Louisiana357Maine72Mariana Islands2Maryland604Massachusetts582Michigan580Minnesota368Mississippi183Missouri466Montana51Nebraska110Nevada205New Hampshire62New Jersey697New Mexico134New York1,534North Carolina597North Dakota50Ohio762Oklahoma168Oregon268Pennsylvania973Puerto Rico233Rhode Island75South Carolina328South Dakota48Tennessee444Texas1,920Utah142Vermont23Virgin Islands21Virginia478Washington432West Virginia117Wisconsin295Wyoming21
Frequently Asked Questions
207RN0300X questionsNPPES lists 22,066 registered providers with this taxonomy code (Internal Medicine Nephrology).
Both. About 22% of these providers are registered as organizations and 78% as individuals.
It crosswalks to Medicare specialty code 11 (Physician/Internal Medicine).
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 nephrology 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.
