Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Northern California Medical Assoc Inc

Q: What is the NPI number for Northern California Medical Assoc Inc?

The NPI for Northern California Medical Assoc Inc is 1457534174, a Type 2 (organization) record in the CMS NPPES registry.

Surgery Physician in Santa Rosa, CA · enumerated 2007 · authorized official Ruth Skidmore, Chief Executive Officer.

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

National Provider Identifier

1457534174

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Registry record

Entity type Organization (Type 2)

Legal business name Northern California Medical Assoc Inc

Practice address 1701 4th St, Ste 200, Santa Rosa, CA, 95404

Phone (707) 579-2100

Fax (707) 523-0616

Enumeration date Dec 17, 2007

Last updated in NPPES Feb 9, 2012

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians Primary

2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians Secondary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Ruth Skidmore

Title Chief Executive Officer

Phone (707) 573-6925

Other identifiers

Identifier	Type	State	Issuer
1457534174	Medicaid	CA	-
ZZZ51552Y	Other	CA	BLUE SHIELD

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.

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Frequently asked questions

What is the NPI number for Northern California Medical Assoc Inc?

The NPI for Northern California Medical Assoc Inc is 1457534174, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Northern California Medical Assoc Inc?

NPPES lists Ruth Skidmore (Chief Executive Officer) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-09.