Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Walter M. Fierson, M.D.,P.C.

Ophthalmology Physician in Arcadia, CA · enumerated 2008 · authorized official Walter Fierson, President.

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

National Provider Identifier

1134388374

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Registry record

Entity type Organization (Type 2)

Legal business name Walter M. Fierson, M.D.,P.C.

Practice address 1245 W Huntington Dr, Suite 109, Arcadia, CA, 91007

Phone (626) 304-7081

Fax (626) 304-1078

Enumeration date Jun 3, 2008

Last updated in NPPES Jan 22, 2009

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License G29165 (CA) Primary

Authorized official

Name Walter Fierson

Title President

Phone (626) 304-7081

Other identifiers

Identifier	Type	State	Issuer
00G291650	Medicaid	CA	-
WC29165C	Other	CA	MEDICARE ID TYPE UNSPECIFIED

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

Where is Walter M. Fierson, M.D.,P.C. located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-01-22. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-22.