207RS0012X — Sleep Medicine (Internal Medicine) Physician

207RS0012X is the NUCC provider taxonomy code for Sleep Medicine (Internal Medicine) Physician, a specialization within Internal Medicine (individual providers). 1,947 providers in our latest NPPES snapshot list it as their primary taxonomy.

Taxonomy code	207RS0012X
Display name	Sleep Medicine (Internal Medicine) Physician
Grouping	Allopathic & Osteopathic Physicians
Classification	Internal Medicine
Specialization	Sleep Medicine
Section	Individual
Directory	Internal Medicine provider directory

Definition

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

207R00000X — Internal Medicine Physician
207RA0401X — Addiction Medicine (Internal Medicine) Physician (Internal Medicine)
207RA0000X — Adolescent Medicine (Internal Medicine) Physician (Internal Medicine)
207RA0002X — Adult Congenital Heart Disease Physician (Internal Medicine)
207RA0001X — Advanced Heart Failure and Transplant Cardiology Physician (Internal Medicine)
207RA0201X — Allergy & Immunology (Internal Medicine) Physician (Internal Medicine)
207RC0000X — Cardiovascular Disease Physician (Internal Medicine)
207RI0001X — Clinical & Laboratory Immunology (Internal Medicine) Physician (Internal Medicine)

Frequently asked questions

What does taxonomy code 207RS0012X mean?

207RS0012X is the NUCC Health Care Provider Taxonomy code for Sleep Medicine (Internal Medicine) Physician, a specialization of Internal Medicine in the "Allopathic & Osteopathic Physicians" grouping. It classifies individual providers.

Where is the taxonomy code used?

Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.

How do I find providers with taxonomy 207RS0012X?

Browse the Internal Medicine directory, or use the NPI search and filter by state.

Source: CMS NPPES (public data). Snapshot 2026-07-09.