207R00000X
Internal Medicine Hematology Taxonomy Code 207RH0000X
207RH0000X
Level III - Area of Specialization
3,824Registered providers
11Medicare specialty
26.0NUCC version
53States & territories
Definition
An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.
Code Details for 207RH0000X
About Taxonomy Code 207RH0000X
The taxonomy code 207RH0000X identifies Internal Medicine Hematology 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 3,824 registered providers whose primary or secondary taxonomy is this code. Of these, 694 (18%) are registered as organizations and 3,130 (82%) as individual providers. The states with the most internal medicine hematology providers are Florida (508), California (351), New York (301). 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
3,824Total providers
694Organizations 18%
3,130Individuals 82%
1,164Female
1,965Male
1Undisclosed
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-07-12T00:00:00.
View all 3,824 providersInternal Medicine Hematology Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
3,824
Alabama6Alaska3Arizona37Arkansas38California351Colorado32Connecticut68Delaware22District Of Columbia18Florida508Georgia76Hawaii3Idaho7Illinois97Indiana97Iowa26Kansas18Kentucky36Louisiana9Maine15Maryland153Massachusetts166Michigan117Minnesota166Mississippi11Missouri39Montana3Nebraska9Nevada11New Hampshire16New Jersey91New Mexico8New York301North Carolina193North Dakota5Ohio149Oklahoma9Oregon48Pennsylvania146Puerto Rico7Rhode Island10South Carolina32South Dakota5Tennessee55Texas158Utah31Vermont14Virgin Islands1Virginia90Washington83West Virginia13Wisconsin42Wyoming1
Frequently Asked Questions
207RH0000X questionsNPPES lists 3,824 registered providers with this taxonomy code (Internal Medicine Hematology).
Both. About 18% of these providers are registered as organizations and 82% 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 hematology 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.
