207RH0003X — Hematology & Oncology Physician
207RH0003X is the NUCC provider taxonomy code for Hematology & Oncology Physician, a specialization within Internal Medicine (individual providers). 17,382 providers in our latest NPPES snapshot list it as their primary taxonomy.
| Taxonomy code | 207RH0003X |
|---|---|
| Display name | Hematology & Oncology Physician |
| Grouping | Allopathic & Osteopathic Physicians |
| Classification | Internal Medicine |
| Specialization | Hematology & Oncology |
| Section | Individual |
| Directory | Internal Medicine provider directory |
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Definition from the NUCC Health Care Provider Taxonomy code set.
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Related taxonomy codes
- 207R00000X — Internal Medicine Physician
- 207RA0401X — Addiction Medicine (Internal Medicine) Physician (Internal Medicine)
- 207RA0000X — Adolescent Medicine (Internal Medicine) Physician (Internal Medicine)
- 207RA0002X — Adult Congenital Heart Disease Physician (Internal Medicine)
- 207RA0001X — Advanced Heart Failure and Transplant Cardiology Physician (Internal Medicine)
- 207RA0201X — Allergy & Immunology (Internal Medicine) Physician (Internal Medicine)
- 207RC0000X — Cardiovascular Disease Physician (Internal Medicine)
- 207RI0001X — Clinical & Laboratory Immunology (Internal Medicine) Physician (Internal Medicine)
Frequently asked questions
What does taxonomy code 207RH0003X mean?
207RH0003X is the NUCC Health Care Provider Taxonomy code for Hematology & Oncology Physician, a specialization of Internal Medicine in the "Allopathic & Osteopathic Physicians" grouping. It classifies individual providers.
Where is the taxonomy code used?
Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.
How do I find providers with taxonomy 207RH0003X?
Browse the Internal Medicine directory, or use the NPI search and filter by state.
Source: CMS NPPES (public data). Snapshot 2026-07-09.