Addiction (Substance Use Disorder) Psychologist
740 active US providers register Addiction (Substance Use Disorder) Psychologist as their primary taxonomy. That is 0.01% of every provider in the registry, and the 423rd largest of 584 specialties with a page here.
- Taxonomy code
- 103TA0400X
- Grouping
- Behavioral Health & Social Service Providers
- Classification
- Psychologist
- Specialization
- Addiction (Substance Use Disorder)
- Active providers
- 740
- States covered
- 47 of 51
What the code means
A psychologist with a proficiency that involves the application of psychological treatment of addiction stemming from the use of alcohol and other psychoactive substances (e.g., nicotine, marijuana, cocaine, heroin) or behavioral addictions (e.g., gambling) with the aim of cessation or reduction of use and/or the amelioration of emotional, behavioral, interpersonal and other problems arising from the addictive behavior.
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 | 126 | |
| Michigan | 58 | |
| Florida | 50 | |
| New York | 42 | |
| Ohio | 35 | |
| Pennsylvania | 29 | |
| Massachusetts | 27 | |
| New Jersey | 24 | |
| Maryland | 22 | |
| Washington | 22 | |
| Minnesota | 21 | |
| Arizona | 21 | |
| Texas | 17 | |
| South Dakota | 16 | |
| Oklahoma | 15 |
Showing the 15 largest of 47 states with at least one.
Who registers under this code
537 of these are people and 203 are organisations, so 27% of the code is businesses rather than clinicians. Half of them had registered by 2014, and 176 registered in the last five years, 24% 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.
- RAPID CITY, SD14
- NEW YORK, NY13
- LOS ANGELES, CA12
- SAN DIEGO, CA11
- SAN FRANCISCO, CA8
- WALNUT CREEK, CA8
- PHOENIX, AZ8
- SALT LAKE CITY, UT7
- OKLAHOMA CITY, OK7
- LAS VEGAS, NV7
What else they list
Providers whose primary code is Addiction (Substance Use Disorder) Psychologist 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 |
|---|---|---|
| Clinical Psychologist | 63 | 8.5% |
| Psychologist | 54 | 7.3% |
| Addiction (Substance Use Disorder) Counselor | 50 | 6.8% |
| Mental Health Counselor | 44 | 5.9% |
| Counseling Psychologist | 35 | 4.7% |
| Cognitive & Behavioral Psychologist | 33 | 4.5% |
| Group Psychotherapy Psychologist | 28 | 3.8% |
| Clinical Child & Adolescent Psychologist | 18 | 2.4% |
Nearby specialties
Other taxonomies NUCC files under Psychologist.
- Rehabilitation Psychologist795
- Group Psychotherapy Psychologist807
- Prescribing (Medical) Psychologist583
- Forensic Psychologist913
- Health Psychologist562
- Family Psychologist521
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.