Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carolyn Rhene Merkouris, MD

Specialist in Woodland, CA · enumerated 2006.

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

National Provider Identifier

1174503395

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Registry record

Entity type Individual (Type 1)

Name Carolyn Rhene Merkouris

Credential MD

Sex Female

Practice address 1321 Cottonwood St Fl 3, Woodland, CA, 95695

Phone (530) 668-2600

Fax (530) 661-2410

Enumeration date Jan 23, 2006

Last updated in NPPES Apr 22, 2026

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License G71953 (CA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License G71953 (CA) Secondary

174400000X Specialist Other Service Providers · License 4440 (AK) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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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.

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Frequently asked questions

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.

What specialty is Carolyn Merkouris?

Carolyn Merkouris is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Lorenzo Rossaro Gastroenterology Physician · Woodland, CA NPI 1750368163 Kristen Webster Physician Assistant · Woodland, CA NPI 1093735243 Rafiq Sheikh Gastroenterology Physician · Woodland, CA NPI 1699853325 Kimberly Sterner Advanced Practice Midwife · Woodland, CA NPI 1679625818 My-Le To Obstetrics & Gynecology Physician · Woodland, CA NPI 1265621197 Nathaniel Ngo Obstetrics & Gynecology Physician · Woodland, CA NPI 1497913404 Emese Parker Obstetrics & Gynecology Nurse Practitioner · Woodland, CA NPI 1508196379 Allison Glass Urology Physician · Woodland, CA NPI 1992021554

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-22.