Adolescent Medicine (Internal Medicine) Physician
398 active US providers register Adolescent Medicine (Internal Medicine) Physician as their primary taxonomy. That is 0.00% of every provider in the registry, and the 517th largest of 584 specialties with a page here.
- Taxonomy code
- 207RA0000X
- Grouping
- Allopathic & Osteopathic Physicians
- Classification
- Internal Medicine
- Specialization
- Adolescent Medicine
- Active providers
- 398
- States covered
- 46 of 51
What the code means
An internist who specializes in adolescent medicine is a multi-disciplinary healthcare specialist trained in the unique physical, psychological and social characteristics of adolescents, their healthcare problems and needs.
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 | 46 | |
| New York | 41 | |
| Michigan | 25 | |
| Florida | 24 | |
| New Jersey | 21 | |
| Texas | 20 | |
| Illinois | 16 | |
| Pennsylvania | 16 | |
| Massachusetts | 15 | |
| Ohio | 14 | |
| North Carolina | 12 | |
| Maryland | 12 | |
| Georgia | 11 | |
| Tennessee | 11 | |
| Connecticut | 10 |
Showing the 15 largest of 46 states with at least one.
Who registers under this code
283 of these are people and 115 are organisations, so 29% of the code is businesses rather than clinicians. Half of them had registered by 2006, and 20 registered in the last five years, 5% 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.
- BROOKLYN, NY12
- LOS ANGELES, CA8
- HOUSTON, TX7
- CHICAGO, IL5
- NEW YORK, NY5
- OMAHA, NE4
- OAK BROOK, IL4
- SAN DIEGO, CA4
- CLEVELAND, OH4
- TULSA, OK3
What else they list
Providers whose primary code is Adolescent Medicine (Internal Medicine) 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 | 52 | 13.1% |
| Pediatrics Physician | 31 | 7.8% |
| Hospitalist Physician | 9 | 2.3% |
| Student in an Organized Health Care Education/Training Program | 9 | 2.3% |
| Pediatric Adolescent Medicine Physician | 8 | 2.0% |
| Geriatric Medicine (Internal Medicine) Physician | 3 | 0.8% |
| Family Medicine Physician | 3 | 0.8% |
| Pulmonary Disease Physician | 2 | 0.5% |
Nearby specialties
Other taxonomies NUCC files under Internal Medicine.
- Hepatology Physician363
- Obesity Medicine (Internal Medicine) Physician327
- Sports Medicine (Internal Medicine) Physician485
- Transplant Hepatology Physician281
- Allergy & Immunology (Internal Medicine) Physician742
- Addiction Medicine (Internal Medicine) Physician1,040
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.