Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

California Hand and Wrist Associates,A Medical Corporation

Surgery of the Hand (Plastic Surgery) Physician in San Mateo, CA · enumerated 2006 · authorized official James Pertsch, President.

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

National Provider Identifier

1093881682

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Registry record

Entity type Organization (Type 2)

Legal business name California Hand and Wrist Associates,A Medical Corporation

Practice address 104 Saint Matthews Ave, San Mateo, CA, 94401

Phone (650) 344-8700

Fax (650) 344-8787

Enumeration date Nov 27, 2006

Last updated in NPPES Mar 3, 2008

Taxonomy & classification

2082S0105X Surgery of the Hand (Plastic Surgery) Physician Allopathic & Osteopathic Physicians · License G62677 (CA) Primary

Authorized official

Name James Pertsch

Title President

Phone (650) 344-8700

Other identifiers

Identifier	Type	State	Issuer
P00299755	Other	CA	MEDICARE RAILROAD

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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is California Hand and Wrist Associates,A Medical Corporation?

California Hand and Wrist Associates,A Medical Corporation is registered in NPPES as a Surgery of the Hand (Plastic Surgery) Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Randall Gaynor Anesthesiology Physician · San Mateo, CA NPI 1316963028 Abj Surgery Center, Inc. Ambulatory Surgical Clinic/Center · San Mateo, CA NPI 1295824118 St Matthews Surgery Center Ambulatory Surgical Clinic/Center · San Mateo, CA NPI 1194131235 Paul Edward Wender MD Anesthesiology Physician · San Mateo, CA NPI 1508254590

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-03.