Nephrology Physician: NPI taxonomy code 207RN0300X
Taxonomy code 207RN0300X is Internal Medicine: Nephrology, in the Allopathic & Osteopathic Physicians group.
17,596 active NPIs list it as their primary specialty (0.2% of all).
| Code | 207RN0300X |
|---|---|
| Group | Allopathic & Osteopathic Physicians |
| Classification | Internal Medicine |
| Specialization | Nephrology |
| Used for | individual providers (the code is in NUCC's Individual section) |
| Active NPIs, primary specialty | 17,596 (13,577 individuals, 4,019 organizations) |
What NUCC says: 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. (excerpt of the NUCC 26.1 definition)
Find Nephrology Physician providers
Search the registry for providers listing Nephrology. Pick a state to narrow it down.
Where they are
| State | Active NPIs | Share |
|---|---|---|
| California | 1,962 | 11.2% |
| Texas | 1,605 | 9.1% |
| New York | 1,281 | 7.3% |
| Florida | 1,232 | 7.0% |
| Pennsylvania | 778 | 4.4% |
| Illinois | 690 | 3.9% |
| Ohio | 613 | 3.5% |
| New Jersey | 592 | 3.4% |
| Georgia | 573 | 3.3% |
| Maryland | 536 | 3.0% |
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
- Hematology & Oncology Physician 17,624
- 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.