Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory Yuk Tam, PHARM D

Pharmacist in Concord, CA · enumerated 2011.

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

National Provider Identifier

1235410184

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Gregory Yuk Tam

Credential PHARM D

Sex Male

Practice address 2400 Monument Blvd, Concord, CA, 94520

Phone (925) 566-4002

Enumeration date Sep 6, 2011

Last updated in NPPES Sep 6, 2011

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 29426 (CA) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD credential

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 do I verify Gregory Tam's NPI record?

Cross-check NPI 1235410184 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1235410184 active?

Yes, as of the latest NPPES snapshot, NPI 1235410184 is active (record last updated 2011-09-06).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-06.