providerfile
Taxonomy 101YA0400X
COUNSELOR99,864 ON THE REGISTER25

Addiction (Substance Use Disorder) Counselor

99,864 active US providers register Addiction (Substance Use Disorder) Counselor as their primary taxonomy. That is 1.1% of every provider in the registry, and the 25th largest of 584 specialties with a page here.

Taxonomy code
101YA0400X
Grouping
Behavioral Health & Social Service Providers
Classification
Counselor
Specialization
Addiction (Substance Use Disorder)
Active providers
99,864
States covered
51 of 51

What the code means

Definition to come...

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.

StateProvidersShare
California28,179
Ohio11,596
New York5,256
Washington4,537
Oregon4,133
North Carolina3,394
Texas2,648
Massachusetts2,444
Michigan2,427
Wisconsin2,154
Minnesota2,072
Colorado2,071
Pennsylvania1,764
Maryland1,476
Florida1,400

Showing the 15 largest of 51 states with at least one.

Who registers under this code

95,219 of these are people and 4,645 are organisations, so 5% of the code is businesses rather than clinicians. Half of them had registered by 2018, and 36,103 registered in the last five years, 36% 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.

What else they list

Providers whose primary code is Addiction (Substance Use Disorder) Counselor 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.

Nearby specialties

Other taxonomies NUCC files under Counselor.

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.