Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Northern California Medical Assoc

Orthopaedic Hand 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

1023205713

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Registry record

Entity type Organization (Type 2)

Legal business name Northern California Medical Assoc

Practice address 1111 Sonoma Ave, Ste 202, Santa Rosa, CA, 95405

Phone (707) 546-7400

Fax (707) 546-7474

Enumeration date Sep 27, 2007

Last updated in NPPES Oct 27, 2007

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians Secondary

207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Ruth Skidmore

Title Chief Executive Officer

Phone (707) 573-6925

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-10-27. Verify at npiregistry.cms.hhs.gov.

Where is Northern California Medical Assoc located?

The practice location on file with NPPES is in Santa Rosa, CA.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-27.