Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gray R. Williams, DPM
Podiatrist in Vallejo, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1750455028
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Registry record
Entity type Individual (Type 1)
Name Gray R. Williams
Credential DPM
Sex Male
Practice address 975 Sereno Dr, Vallejo, CA, 94589
Phone (707) 651-1000
Enumeration date Nov 20, 2006
Last updated in NPPES Dec 6, 2021
Taxonomy & licenses
DPM — Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle.
About the DPM 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.
Frequently asked questions
How do I verify Gray Williams's NPI record?
Cross-check NPI 1750455028 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1750455028 active?
Yes — as of the latest NPPES snapshot, NPI 1750455028 is active (record last updated 2021-12-06).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-06.