Hematology & Oncology Physician: NPI taxonomy code 207RH0003X
Taxonomy code 207RH0003X is Internal Medicine: Hematology & Oncology, in the Allopathic & Osteopathic Physicians group.
17,624 active NPIs list it as their primary specialty (0.2% of all).
| Code | 207RH0003X |
|---|---|
| Group | Allopathic & Osteopathic Physicians |
| Classification | Internal Medicine |
| Specialization | Hematology & Oncology |
| Used for | individual providers (the code is in NUCC's Individual section) |
| Active NPIs, primary specialty | 17,624 (14,143 individuals, 3,481 organizations) |
What NUCC says: An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. (excerpt of the NUCC 26.1 definition)
Find Hematology & Oncology Physician providers
Search the registry for providers listing Hematology & Oncology. Pick a state to narrow it down.
Where they are
| State | Active NPIs | Share |
|---|---|---|
| California | 1,917 | 10.9% |
| New York | 1,404 | 8.0% |
| Florida | 1,200 | 6.8% |
| Texas | 1,115 | 6.3% |
| Pennsylvania | 906 | 5.1% |
| Illinois | 794 | 4.5% |
| North Carolina | 595 | 3.4% |
| Ohio | 592 | 3.4% |
| New Jersey | 562 | 3.2% |
| Washington | 503 | 2.9% |
Top states by practice location, from the NPPES file of September 13, 2026.
Related specialties
- Internal Medicine Physician 191,739
- Cardiovascular Disease Physician 36,469
- Gastroenterology Physician 26,237
- Pulmonary Disease Physician 19,774
- Nephrology Physician 17,596
- Infectious Disease Physician 13,258
- Endocrinology, Diabetes & Metabolism Physician 13,019
- Rheumatology Physician 10,232
Specialty definitions are from the NUCC Health Care Provider Taxonomy (version 26.1). Which code to use on a claim depends on your NPPES record and your payer. See taxonomy codes explained.