NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Northern California Medical Assoc Inc

Cardiovascular Disease Physician in Sonoma, CA · enumerated 2005 · authorized official Sally Dewald, Director of Business Svcs.

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

National Provider Identifier

1548262926

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Northern California Medical Assoc Inc
Practice address 558 3rd St W, Sonoma, CA, 95476
Phone (707) 931-6469
Fax (707) 934-8492
Enumeration date Aug 15, 2005
Last updated in NPPES Oct 5, 2018

Taxonomy & classification

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Primary
207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Sally Dewald
Title Director of Business Svcs
Phone (707) 525-6485

Other identifiers

Identifier Type State Issuer
1548262926 Medicaid CA -
ZZZ38796Z Other CA BLUE SHIELD OF CALIFORNIA

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

Where is Northern California Medical Assoc Inc located?
The practice location on file with NPPES is in Sonoma, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2018-10-05. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-05.