Sleep Disorder Diagnostic Clinic/Center
3,022 active US providers register Sleep Disorder Diagnostic Clinic/Center as their primary taxonomy. That is 0.03% of every provider in the registry, and the 243rd largest of 584 specialties with a page here.
- Taxonomy code
- 261QS1200X
- Grouping
- Ambulatory Health Care Facilities
- Classification
- Clinic/Center
- Specialization
- Sleep Disorder Diagnostic
- Active providers
- 3,022
- 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.
| State | Providers | Share |
|---|---|---|
| Texas | 491 | |
| California | 451 | |
| Florida | 195 | |
| Georgia | 127 | |
| Arizona | 113 | |
| Tennessee | 91 | |
| Illinois | 84 | |
| Ohio | 81 | |
| New York | 79 | |
| North Carolina | 77 | |
| Louisiana | 76 | |
| Virginia | 74 | |
| New Jersey | 71 | |
| Massachusetts | 66 | |
| Pennsylvania | 62 |
Showing the 15 largest of 51 states with at least one.
Who registers under this code
47 of these are people and 2,975 are organisations, so 98% of the code is businesses rather than clinicians. Half of them had registered by 2009, and 228 registered in the last five years, 8% of the current population.
That is a slow-growing code, which usually means an established field replacing retirements rather than expanding.
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.
- HOUSTON, TX78
- DALLAS, TX32
- LOS ANGELES, CA28
- SAN ANTONIO, TX26
- AUSTIN, TX26
- LAS VEGAS, NV24
- PHOENIX, AZ22
- TUCSON, AZ20
- MIAMI, FL19
- BROOKLYN, NY18
What else they list
Providers whose primary code is Sleep Disorder Diagnostic Clinic/Center 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 |
|---|---|---|
| Durable Medical Equipment & Medical Supplies | 153 | 5.1% |
| Sleep Medicine (Internal Medicine) Physician | 44 | 1.5% |
| Physiological Laboratory | 32 | 1.1% |
| Clinical Medical Laboratory | 27 | 0.9% |
| Neurology Physician | 19 | 0.6% |
| Pulmonary Disease Physician | 18 | 0.6% |
| Sleep Medicine (Psychiatry & Neurology) Physician | 16 | 0.5% |
| Multi-Specialty Clinic/Center | 16 | 0.5% |
Nearby specialties
Other taxonomies NUCC files under Clinic/Center.
- Developmental Disabilities Clinic/Center3,024
- Community Health Clinic/Center2,835
- Hearing and Speech Clinic/Center3,808
- Adolescent and Children Mental Health Clinic/Center3,814
- Occupational Medicine Clinic/Center1,985
- Methadone Clinic1,685
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.