Addiction Medicine (Internal Medicine) Physician
1,040 active US providers register Addiction Medicine (Internal Medicine) Physician as their primary taxonomy. That is 0.01% of every provider in the registry, and the 379th largest of 584 specialties with a page here.
- Taxonomy code
- 207RA0401X
- Grouping
- Allopathic & Osteopathic Physicians
- Classification
- Internal Medicine
- Specialization
- Addiction Medicine
- Active providers
- 1,040
- States covered
- 47 of 51
What the code means
An internist doctor of osteopathy that specializes in the treatment of addiction disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Added Qualifications in the field of Addiction Medicine.
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 | 118 | |
| Florida | 83 | |
| New York | 73 | |
| Ohio | 71 | |
| Pennsylvania | 58 | |
| New Jersey | 50 | |
| Massachusetts | 46 | |
| Maryland | 45 | |
| Michigan | 43 | |
| Tennessee | 40 | |
| Kentucky | 37 | |
| Virginia | 29 | |
| Illinois | 24 | |
| Arizona | 23 | |
| Texas | 21 |
Showing the 15 largest of 47 states with at least one.
Who registers under this code
609 of these are people and 431 are organisations, so 41% of the code is businesses rather than clinicians. Half of them had registered by 2012, and 171 registered in the last five years, 16% of the current population.
That is close to the pace of the registry as a whole.
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.
- BALTIMORE, MD18
- PHILADELPHIA, PA17
- BRONX, NY16
- NEW YORK, NY14
- CINCINNATI, OH12
- COLUMBUS, OH12
- DENVER, CO12
- LEXINGTON, KY11
- PITTSBURGH, PA10
- PORTLAND, OR10
What else they list
Providers whose primary code is Addiction 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 | 277 | 26.6% |
| Addiction (Substance Use Disorder) Counselor | 38 | 3.7% |
| Hospitalist Physician | 34 | 3.3% |
| Psychiatry Physician | 33 | 3.2% |
| Family Medicine Physician | 32 | 3.1% |
| Student in an Organized Health Care Education/Training Program | 31 | 3.0% |
| Emergency Medicine Physician | 30 | 2.9% |
| Addiction Medicine (Psychiatry & Neurology) Physician | 26 | 2.5% |
Nearby specialties
Other taxonomies NUCC files under Internal Medicine.
- Advanced Heart Failure and Transplant Cardiology Physician1,232
- Allergy & Immunology (Internal Medicine) Physician742
- Hematology (Internal Medicine) Physician1,572
- Sports Medicine (Internal Medicine) Physician485
- Adolescent Medicine (Internal Medicine) Physician398
- Hepatology Physician363
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.