Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Brittany Sara Greenbaum, D.O.

Otolaryngology Physician in Casper, WY · enumerated 2015 · practices at Wyoming Otolaryngology, P.C..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1952793416

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Registry record

Entity type Individual (Type 1)

Name Brittany Sara Greenbaum

Credential D.O.

Sex Female

Practice address Casper, WY, 82604

Phone (307) 577-4240

Fax (307) 577-0012

Enumeration date Feb 20, 2015

Last updated in NPPES Aug 24, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 15701A (WY) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
224624400	Medicaid	WY	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Brittany Greenbaum?

Brittany Greenbaum is registered in NPPES with the primary taxonomy of Otolaryngology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-24.