Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Shayan Ozhen Riahi, DO

Endocrinology, Diabetes & Metabolism Physician in Prospect, CT · enumerated 2019.

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

National Provider Identifier

1467012278

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Registry record

Entity type Individual (Type 1)

Name Dr. Shayan Ozhen Riahi

Credential DO

Sex Male

Practice address 166 Waterbury Rd, Prospect, CT, 06712

Phone (203) 755-7711

Fax (203) 755-8996

Enumeration date Jun 14, 2019

Last updated in NPPES Aug 9, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License OT019355 (PA) Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 77358 (CT) 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

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 Shayan Riahi?

Shayan Riahi is registered in NPPES with the primary taxonomy of Endocrinology, Diabetes & Metabolism 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 2024-08-09.