National totals
| Active NPI records | 6,351 |
| Registered sole proprietors | 125 (2.0%) |
| NUCC taxonomy code | 261QM2500X |
| Grouping | Ambulatory Health Care Facilities |
What this specialty covers
An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or to meet specific public health needs (e.g., infectious diseases or breast and cervical cancer).
Reading the sole-proprietor share
For this specialty, a sole-proprietor flag identifies an NPPES record that reports that status; 125 records, or 2.0%, are flagged. It is an imperfect proxy for private practice because the field is self-reported and Medical Specialty Clinic/Center records can represent facilities or entities serving specialized or public-health needs, rather than independently owned clinician practices.
By state
| State | Active NPIs | Sole proprietors | Share |
|---|---|---|---|
| California | 891 | 29 | 3.3% |
| Florida | 556 | <11 | not reported |
| Texas | 429 | <11 | not reported |
| New York | 384 | <11 | not reported |
| Illinois | 240 | <11 | not reported |
| New Jersey | 227 | <11 | not reported |
| Oklahoma | 216 | <11 | not reported |
| Georgia | 198 | <11 | not reported |
| Arizona | 174 | <11 | not reported |
| Michigan | 170 | <11 | not reported |
| North Carolina | 167 | <11 | not reported |
| Colorado | 164 | <11 | not reported |
| Washington | 153 | <11 | not reported |
| Maryland | 142 | <11 | not reported |
| Pennsylvania | 135 | <11 | not reported |
| Oregon | 132 | <11 | not reported |
| Ohio | 129 | <11 | not reported |
| Virginia | 118 | <11 | not reported |
| Missouri | 115 | <11 | not reported |
| Tennessee | 103 | <11 | not reported |
| Louisiana | 98 | <11 | not reported |
| South Carolina | 92 | <11 | not reported |
| Minnesota | 87 | <11 | not reported |
| Alabama | 84 | <11 | not reported |
| Massachusetts | 81 | <11 | not reported |
| Utah | 66 | <11 | not reported |
| Indiana | 65 | <11 | not reported |
| Nevada | 59 | <11 | not reported |
| Mississippi | 57 | <11 | not reported |
| Arkansas | 57 | <11 | not reported |
| Wisconsin | 55 | <11 | not reported |
| Hawaii | 52 | <11 | not reported |
| Connecticut | 44 | <11 | not reported |
| Kentucky | 42 | <11 | not reported |
| New Mexico | 39 | <11 | not reported |
| Idaho | 36 | <11 | not reported |
| West Virginia | 35 | <11 | not reported |
| Iowa | 34 | <11 | not reported |
| Montana | 31 | <11 | not reported |
| Alaska | 27 | <11 | not reported |
| Nebraska | 27 | <11 | not reported |
| Kansas | 23 | <11 | not reported |
| South Dakota | 19 | <11 | not reported |
| District of Columbia | 19 | <11 | not reported |
| Maine | 18 | <11 | not reported |
| Delaware | 18 | <11 | not reported |
| Rhode Island | 14 | <11 | not reported |
| New Hampshire | 13 | <11 | not reported |
| North Dakota | 12 | <11 | not reported |
| Wyoming | 12 | <11 | not reported |
| Vermont | 11 | <11 | not reported |
New NPI registrations by year
| Year first enumerated | NPIs |
|---|---|
| 2016 | 274 |
| 2017 | 197 |
| 2018 | 145 |
| 2019 | 167 |
| 2020 | 211 |
| 2021 | 188 |
| 2022 | 164 |
| 2023 | 187 |
| 2024 | 226 |
| 2025 | 244 |
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.
- NPPES taxonomy and sole-proprietor fields are reported data and may be incomplete, outdated, or applied differently across organizations.
- The total covers active records whose primary taxonomy is 261QM2500X; entities using another primary taxonomy or listing this taxonomy secondarily may not appear.
- NPI records do not measure patient volume, staffing, revenue, service capacity, or whether a location is currently operating as a specialty clinic.
- Providers are counted once, by their primary taxonomy code only.
Common questions
How many Medical Specialty Clinic/Center providers are in the United States?
There are 6,351 active NPI records nationally with Medical Specialty Clinic/Center as the primary taxonomy. This is a count of records, not necessarily a count of distinct clinics, locations, or clinicians.
How many Medical Specialty Clinic/Center organizations are in private practice?
NPPES flags 125 records, or 2.0%, as sole proprietors. This is an imperfect proxy for private practice because the field is self-reported and does not fully describe ownership or operating structure.
Which states have the most Medical Specialty Clinic/Center NPIs?
The largest state counts are California (891), Florida (556), Texas (429), New York (384), and Illinois (240).
Does the number of Medical Specialty Clinic/Center NPIs equal the number of clinics in the United States?
No. The total counts active NPI records with this primary taxonomy, and NPI records do not map one-to-one to clinics, locations, clinicians, or service capacity.
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