170100000X
Sleep Specialist, PhD Taxonomy Code 173F00000X
173F00000X
Level II - Classification
216Registered providers
25.1NUCC version
38States & territories
Definition
Sleep medicine is a clinical specialty with a focus on clinical problems that require accurate diagnosis and treatment. The knowledge base of sleep medicine is derived from many disciplines including neuroanatomy, neurophysiology, respiratory physiology, pharmacology, psychology, psychiatry, neurology, general internal medicine, pulmonary medicine, and pediatrics as well as others.
Code Details for 173F00000X
About Taxonomy Code 173F00000X
The taxonomy code 173F00000X identifies Sleep Specialist, PhD within the Other Service Providers provider grouping. It is a Level II — Classification code, which names a provider's occupation or service within the broader provider grouping.
NPI records show 216 registered providers whose primary or secondary taxonomy is this code. Of these, 138 (64%) are registered as organizations and 78 (36%) as individual providers. The states with the most sleep specialist, phd providers are California (31), Texas (23), New York (20).
Taxonomy codes are self-selected by the provider based on their education and training; they describe the provider's type and specialty, not the specific services rendered.
Provider Composition & Statistics
216Total providers
138Organizations 64%
78Individuals 36%
33Female
45Male
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-06-21T00:00:00.
View all 216 providersSleep Specialist, PhD Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
216
Alabama2Alaska1Arizona3Arkansas1California31Colorado4Delaware1Florida9Georgia19Illinois8Indiana1Iowa1Kansas1Kentucky5Louisiana7Maine1Maryland7Massachusetts4Michigan12Minnesota2Missouri1Montana1Nevada2New Jersey7New Mexico2New York20North Carolina16North Dakota1Ohio1Oregon3Pennsylvania4South Carolina1Tennessee2Texas23Utah3Virginia4Washington3Wisconsin1
Frequently Asked Questions
173F00000X questionsNPPES lists 216 registered providers with this taxonomy code (Sleep Specialist, PhD).
Both. About 64% of these providers are registered as organizations and 36% as individuals.
This taxonomy code does not map to a Medicare specialty code in the current crosswalk.
It is a Level II - Classification code in the NUCC Health Care Provider Taxonomy set.
Use the "Providers by state" directory on this page to open the list of sleep specialist, phd providers registered in any U.S. state.
Source: National Uniform Claim Committee (NUCC) Health Care Provider Taxonomy code set, Version 25.1. Provider counts from NPPES. See nucc.org.
