Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Philip A Greider MD Inc

Q: What is the NPI number for Philip A Greider MD Inc?

The NPI for Philip A Greider MD Inc is 1952473951, a Type 2 (organization) record in the CMS NPPES registry.

Anesthesiology Physician in Whittier, CA · enumerated 2006 · authorized official Philip Greider, President.

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

National Provider Identifier

1952473951

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Philip A Greider MD Inc

Practice address 12401 Washington Blvd, Whittier, CA, 90602

Phone (310) 792-3914

Enumeration date Nov 14, 2006

Last updated in NPPES Jul 23, 2008

Taxonomy & classification

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License A44489 (CA) Primary

Authorized official

Name Philip Greider

Title President

Phone (310) 792-3914

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

Who is the authorized official for Philip A Greider MD Inc?

NPPES lists Philip Greider (President) as the authorized official for this organization.

What is the NPI number for Philip A Greider MD Inc?

The NPI for Philip A Greider MD Inc is 1952473951, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-23.