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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Susan Wolf, M.D.

Specialist in San Mateo, CA · enumerated 2007 · authorized official Susan Wolf, Owner.

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

National Provider Identifier

1417138231

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Registry record

Entity type Organization (Type 2)
Legal business name Susan Wolf, M.D.
Parent organization Susan Wolf, M.D.
Practice address 100 S. Ellsworth Avenue, Suite 707, San Mateo, CA, 94401
Phone (650) 348-1242
Fax (650) 348-0788
Enumeration date Nov 20, 2007
Last updated in NPPES Mar 22, 2010

Taxonomy & classification

174400000X Specialist Other Service Providers · License A66326 (CA) Primary

Authorized official

Name Susan Wolf
Title Owner
Phone (650) 348-1242

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

Who is the authorized official for Susan Wolf, M.D.?
NPPES lists Susan Wolf (Owner) as the authorized official for this organization.
What is the NPI number for Susan Wolf, M.D.?
The NPI for Susan Wolf, M.D. is 1417138231, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-22.