Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gregory T. Fisher, M.D. PC

Ambulatory Surgical Clinic/Center in Cerritos, CA · enumerated 2009 · authorized official Gregory Fisher, President.

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

National Provider Identifier

1396074977

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Registry record

Entity type Organization (Type 2)

Legal business name Gregory T. Fisher, M.D. PC

Practice address 17785 Center Court Dr N, Suite 130, Cerritos, CA, 90703

Phone (562) 865-9600

Fax (562) 865-9612

Enumeration date Dec 10, 2009

Last updated in NPPES Dec 10, 2009

Taxonomy & classification

261QA1903X Ambulatory Surgical Clinic/Center Ambulatory Health Care Facilities · License G44251 (CA) Primary

Authorized official

Name Gregory Fisher

Title President

Phone (562) 865-9600

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-12-10. Verify at npiregistry.cms.hhs.gov.

Where is Gregory T. Fisher, M.D. PC located?

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

Providers at this address

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Ann Marielle Reyes Nurse Practitioner · Cerritos, CA NPI 1790520765

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-10.