NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Fremont Dermatology Medical Office

Specialist in Fremont, CA · enumerated 2007 · authorized official David Gorsulowsky, Physician.

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

National Provider Identifier

1841487337

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Fremont Dermatology Medical Office
Practice address 39210 State St Ste 218, Fremont, CA, 94538
Enumeration date Sep 27, 2007
Last updated in NPPES Sep 26, 2008

Taxonomy & classification

174400000X Specialist Other Service Providers · License C042190 (CA) Primary

Authorized official

Name David Gorsulowsky
Title Physician

Other identifiers

Identifier Type State Issuer
A37754 Other CA UPIN
070008967 Other CA RAILROAD MEDICARE ID

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 type of organization is Fremont Dermatology Medical Office?
Fremont Dermatology Medical Office is registered in NPPES as a Specialist (its primary provider taxonomy).
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.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-26.