Allopathic & Osteopathic Physicians / 2084S0012X
Individual · specialization · Medicare specialty 86
2084S0012X Sleep Medicine (Psychiatry & Neurology) Physician
2084S0012X is the taxonomy code for Sleep Medicine, a specialization of Psychiatry & Neurology, in the NUCC group “Allopathic & Osteopathic Physicians”. It is a code for individual providers — the kind used on a Type 1 NPI. Medicare maps it to specialty 86, Physician/Neuropsychiatry, under which 436 practitioners are enrolled, and to 1 other specialty listed below.
- 1Taxonomy code 2084S0012X
- 2Level Specialization
- 3Medicare specialty 86 Physician/Neuropsychiatry
- 4Codes in this group 238
Definition
A Psychiatrist or Neurologist 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.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 2084S0012X sits
- Group: Allopathic & Osteopathic Physicians — code 209 of 238 in the group
- Classification: Psychiatry & Neurology
- Specialization: Sleep Medicine 2084S0012X
Choose 2084S0012X over the general Psychiatry & Neurology code when the provider's training or certification is specifically in sleep medicine; the general code covers the classification as a whole. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 2084S0012X to Medicare specialty 86 (Physician/Neuropsychiatry) and Medicare specialty C0 (Physician/Sleep Medicine). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 436 practitioners are enrolled under it nationally, and 24 other taxonomy codes map to the same specialty.
Other codes under the same Medicare specialty: 207QS1201X Sleep Medicine (Family Medicine) Physician; 207RS0012X Sleep Medicine (Internal Medicine) Physician; 207YS0012X Sleep Medicine (Otolaryngology) Physician; 2080S0012X Pediatric Sleep Medicine Physician; 261QS1200X Sleep Disorder Diagnostic Clinic/Center; 2084A0401X Addiction Medicine (Psychiatry & Neurology) Physician; 2084B0002X Obesity Medicine (Psychiatry & Neurology) Physician; 2084B0040X Behavioral Neurology & Neuropsychiatry Physician; and 16 more.
Related codes
| Code | Psychiatry & Neurology — other specializations |
|---|---|
| 2084P2900X | Pain Medicine |
| 2084P0800X | Psychiatry |
| 2084P0015X | Psychosomatic Medicine |
| 2084S0010X | Sports Medicine |
| 2084V0102X | Vascular Neurology |
The nearest 5 of 22 other codes under Psychiatry & Neurology; all are on the group page.
History of 2084S0012X
2084S0012X was added to the code set in 2006.
- 2006-07-01 — new
Similar codes in other groups
If 2084S0012X is not quite right, these codes in other groups share a word with it — often the same field practised by a different kind of provider:
- 125Q00000X Oral Medicine Dentistry (Dental Providers)
- 163WC0200X Critical Care Medicine Registered Nurse (Nursing Service Providers)
- 173000000X Legal Medicine (Other Service Providers)
- 173F00000X Sleep Specialist (PhD) (Other Service Providers)
- 1835E0208X Emergency Medicine Pharmacist (Pharmacy Service Providers)
- 364SC0200X Critical Care Medicine Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers)
Find providers with 2084S0012X
Using 2084S0012X
The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.
Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV); CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026; CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29. Checked 2026-10-24. Methodology.