Endocrinology, Diabetes & Metabolism Physician
12,930 active US providers register Endocrinology, Diabetes & Metabolism Physician as their primary taxonomy. That is 0.1% of every provider in the registry, and the 112th largest of 584 specialties with a page here.
- Taxonomy code
- 207RE0101X
- Grouping
- Allopathic & Osteopathic Physicians
- Classification
- Internal Medicine
- Specialization
- Endocrinology, Diabetes & Metabolism
- Active providers
- 12,930
- States covered
- 51 of 51
What the code means
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Definition quoted verbatim from the NUCC Health Care Provider Taxonomy code set, version 25.1. Not paraphrased.
Where they are
Counted by practice location, not by mailing address or by licence state. A provider practising across a state line is counted where they practise.
| State | Providers | Share |
|---|---|---|
| California | 1,413 | |
| New York | 1,156 | |
| Texas | 944 | |
| Florida | 929 | |
| Pennsylvania | 620 | |
| Massachusetts | 555 | |
| New Jersey | 539 | |
| Illinois | 520 | |
| Maryland | 446 | |
| Ohio | 417 | |
| North Carolina | 375 | |
| Michigan | 348 | |
| Virginia | 337 | |
| Georgia | 296 | |
| Washington | 247 |
Showing the 15 largest of 51 states with at least one.
Who registers under this code
10,352 of these are people and 2,578 are organisations, so 20% of the code is businesses rather than clinicians. Half of them had registered by 2007, and 829 registered in the last five years, 6% of the current population.
That is a slow-growing code, which usually means an established field replacing retirements rather than expanding.
Where the practices are
By practice-location city. City counts are noisier than state counts, because a large employer files one address for many providers.
- NEW YORK, NY337
- BOSTON, MA292
- HOUSTON, TX185
- CHICAGO, IL170
- BALTIMORE, MD134
- PHILADELPHIA, PA121
- LOS ANGELES, CA120
- MIAMI, FL101
- DALLAS, TX98
- SAINT LOUIS, MO95
What else they list
Providers whose primary code is Endocrinology, Diabetes & Metabolism Physician most often carry these secondary taxonomies as well. This is the closest thing the registry has to a map of which specialties overlap in practice, and it is not published anywhere else.
| Also listed | Providers | Share |
|---|---|---|
| Internal Medicine Physician | 2,825 | 21.8% |
| Student in an Organized Health Care Education/Training Program | 814 | 6.3% |
| Hospitalist Physician | 135 | 1.0% |
| Specialist | 122 | 0.9% |
| Family Medicine Physician | 61 | 0.5% |
| Nurse Practitioner | 56 | 0.4% |
| Geriatric Medicine (Internal Medicine) Physician | 47 | 0.4% |
| Family Nurse Practitioner | 45 | 0.3% |
Nearby specialties
Other taxonomies NUCC files under Internal Medicine.
- Infectious Disease Physician13,206
- Rheumatology Physician10,191
- Interventional Cardiology Physician8,478
- Hematology & Oncology Physician17,524
- Nephrology Physician17,538
- Critical Care Medicine (Internal Medicine) Physician7,231
Looking up a specific provider
These counts come from the monthly NPPES file. To check one provider, use their NPI: the lookup reads the live registry and shows whether the identifier is still active, which the monthly file cannot tell you about the last few weeks.
Counts from npidata_pfile_20050523-20260712.csv, built 2026-08-09. Primary taxonomy only, deactivated identifiers excluded.