Sleep Specialist (PhD): NPI taxonomy code 173F00000X
Taxonomy code 173F00000X is Sleep Specialist, PhD, in the Other Service Providers group.
131 active NPIs list it as their primary specialty (<0.1% of all).
| Code | 173F00000X |
|---|---|
| Group | Other Service Providers |
| Classification | Sleep Specialist, PhD |
| Used for | individual providers (the code is in NUCC's Individual section) |
| Active NPIs, primary specialty | 131 (37 individuals, 94 organizations) |
What NUCC says: Sleep medicine is a clinical specialty with a focus on clinical problems that require accurate diagnosis and treatment. (excerpt of the NUCC 26.1 definition)
Find Sleep Specialist (PhD) providers
Search the registry for providers listing Sleep Specialist, PhD. Pick a state to narrow it down.
Where they are
| State | Active NPIs | Share |
|---|---|---|
| Texas | 19 | 14.5% |
| California | 16 | 12.2% |
| Georgia | 12 | 9.2% |
| New York | 12 | 9.2% |
| Michigan | 9 | 6.9% |
| North Carolina | 7 | 5.3% |
| Maryland | 6 | 4.6% |
| Colorado | 5 | 3.8% |
| Oregon | 4 | 3.1% |
| Massachusetts | 4 | 3.1% |
Top states by practice location, from the NPPES file of September 13, 2026.
Specialty definitions are from the NUCC Health Care Provider Taxonomy (version 26.1). Which code to use on a claim depends on your NPPES record and your payer. See taxonomy codes explained.