National totals
| Active NPI records | 117,974 |
| Registered sole proprietors | 38,151 (32.3%) |
| NUCC taxonomy code | 101YA0400X |
| Grouping | Behavioral Health & Social Service Providers |
Reading the sole-proprietor share
For this specialty, the sole-proprietor share indicates how many records have the NPPES sole-proprietor field flagged, not how many counselors practice independently or own a private practice. The field is self-reported and may not capture group affiliations, employment arrangements, or changes in practice status, so it is an imperfect proxy for private practice.
By state
| State | Active NPIs | Sole proprietors | Share |
|---|---|---|---|
| California | 29,140 | 10,165 | 34.9% |
| Ohio | 11,385 | 5,013 | 44.0% |
| New York | 5,907 | 1,616 | 27.4% |
| North Carolina | 5,232 | 1,922 | 36.7% |
| Washington | 5,070 | 1,100 | 21.7% |
| Oregon | 4,507 | 975 | 21.6% |
| Texas | 4,008 | 1,820 | 45.4% |
| Colorado | 3,199 | 923 | 28.9% |
| Michigan | 3,072 | 911 | 29.7% |
| Wisconsin | 3,057 | 659 | 21.6% |
| Massachusetts | 2,712 | 890 | 32.8% |
| Minnesota | 2,615 | 663 | 25.4% |
| Pennsylvania | 2,211 | 664 | 30.0% |
| Florida | 2,167 | 825 | 38.1% |
| New Jersey | 2,046 | 844 | 41.3% |
| Illinois | 1,999 | 607 | 30.4% |
| Maryland | 1,821 | 458 | 25.2% |
| Oklahoma | 1,649 | 592 | 35.9% |
| Kentucky | 1,477 | 384 | 26.0% |
| Arizona | 1,359 | 436 | 32.1% |
| South Carolina | 1,350 | 288 | 21.3% |
| Virginia | 1,261 | 392 | 31.1% |
| Louisiana | 1,248 | 415 | 33.3% |
| Nevada | 1,211 | 430 | 35.5% |
| Iowa | 1,166 | 216 | 18.5% |
| Indiana | 1,161 | 384 | 33.1% |
| Connecticut | 1,156 | 422 | 36.5% |
| Georgia | 1,123 | 412 | 36.7% |
| Maine | 1,112 | 310 | 27.9% |
| Alaska | 1,092 | 181 | 16.6% |
| Nebraska | 1,066 | 285 | 26.7% |
| Montana | 1,005 | 331 | 32.9% |
| New Mexico | 944 | 276 | 29.2% |
| Kansas | 880 | 194 | 22.0% |
| New Hampshire | 754 | 213 | 28.2% |
| Utah | 703 | 202 | 28.7% |
| Rhode Island | 676 | 183 | 27.1% |
| Tennessee | 618 | 217 | 35.1% |
| Delaware | 613 | 107 | 17.5% |
| North Dakota | 493 | 62 | 12.6% |
| West Virginia | 471 | 124 | 26.3% |
| Missouri | 466 | 117 | 25.1% |
| Vermont | 429 | 215 | 50.1% |
| Idaho | 374 | 110 | 29.4% |
| South Dakota | 313 | 46 | 14.7% |
| Arkansas | 295 | 73 | 24.7% |
| Alabama | 274 | 84 | 30.7% |
| Mississippi | 242 | 41 | 16.9% |
| Hawaii | 215 | 105 | 48.8% |
| District of Columbia | 187 | 82 | 43.9% |
| Wyoming | 182 | 37 | 20.3% |
New NPI registrations by year
| Year first enumerated | NPIs |
|---|---|
| 2017 | 6,901 |
| 2018 | 7,987 |
| 2019 | 7,167 |
| 2020 | 6,237 |
| 2021 | 6,843 |
| 2022 | 7,189 |
| 2023 | 7,216 |
| 2024 | 7,640 |
| 2025 | 7,077 |
| 2026 (partial year) | 151 |
Counts reflect the year each NPI was first issued, among records still active today. The final year is partial: this data covers through 2026-01-11.
Data notes
- The sole-proprietor field is self-reported by the provider in NPPES and is an imperfect proxy for private practice.
- A sole-proprietor count shown as <11 is suppressed: the true value is below 11, which could include zero.
- An NPI record is not a direct count of unique practitioners, clinical full-time equivalents, patient visits, or available treatment capacity.
- Taxonomy and sole-proprietor fields are based on NPPES reporting and may be incomplete, outdated, or interpreted differently by registrants.
- State counts reflect the address and primary taxonomy recorded in NPPES and should not be read as measures of local need, service volume, or access.
- Providers are counted once, by their primary taxonomy code only.
Common questions
How many Addiction (Substance Use Disorder) Counselors are there in the United States?
There are 117,974 active NPI records with Addiction (Substance Use Disorder) Counselor as the primary taxonomy. This is a count of NPI records, not necessarily a count of unique people or currently practicing clinicians.
How many Addiction (Substance Use Disorder) Counselors are in private practice?
NPPES flags 38,151 records, or 32.3%, as sole proprietors. Because this is a self-reported field, it should not be treated as a definitive count of private practices.
Which states have the most Addiction (Substance Use Disorder) Counselors?
California has the largest count, with 29,140 records, followed by Ohio, New York, North Carolina, and Washington. These rankings reflect NPI records by primary taxonomy and state.
How many NPIs for this specialty were first enumerated in recent years?
NPIs first enumerated in this specialty numbered 7,640 in 2024, 7,077 in 2025, and 151 in 2026. These are enumeration counts, not counts of currently active records for each year.
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