In plain English
Endocrinology, diabetes and metabolism is an internal medicine fellowship. The field covers the endocrine glands - thyroid, pituitary, adrenal, parathyroid, gonads - and metabolic conditions, of which diabetes is by far the largest in volume.
It is a small specialty relative to the demand on it, which is why so much diabetes care is delivered in primary care and by nurse practitioners and physician assistants working alongside endocrinologists. A list aimed at diabetes care that contains only endocrinologists will be a fraction of the real prescribing population.
Pediatric endocrinology is a separate fellowship taken after a pediatrics residency, and it is filed under its own code on the public record.
Training and credentials
Medical school, an internal medicine residency, a two-year endocrinology fellowship, then board certification.
Where they practise
Hospital and health-system specialty clinics, multi-specialty groups, academic centres, and a diminishing number of independent single-specialty practices.
Endocrinologists on the public record
Counted from what providers file about themselves, with suppression applied before anything is counted, refreshed 2026-10-05. Names, specialties and practice locations are public; work email and phone are for signed-in customers.
| State | On record | With work email | With practice phone |
|---|---|---|---|
| California | 1,438 | 1,098 76% | 1,438 |
| New York | 1,180 | 927 79% | 1,180 |
| Texas | 954 | 721 76% | 954 |
| Florida | 947 | 623 66% | 947 |
| Pennsylvania | 622 | 468 75% | 622 |
| Massachusetts | 561 | 497 89% | 561 |
| New Jersey | 547 | 406 74% | 547 |
| Illinois | 527 | 410 78% | 527 |
Closely related, and where to find them.
Closely related
- Internal medicine physician Adult general medicine, and the classification most sub-specialties are filed beneath.
- Nurse practitioner An advanced practice nurse who diagnoses and prescribes - within the scope the state allows.
- Registered dietitian The credentialled nutrition profession - and why nutritionist is not a reliable filter.
Find them
- Endocrinologists list counts by state, the fields a record carries, a sample record.
- Physicians physician data by specialty, state and employer.
Need the list, not the definition?
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