Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Michael Fain, O.D.
Optometrist in Sunnyvale, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1508931601
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Registry record
Entity type Individual (Type 1)
Name Michael Fain
Credential O.D.
Sex Male
Practice address 323-325 North Mathilda Ave, Sunnyvale, CA, 94085
Phone (408) 524-5900
Enumeration date Nov 22, 2006
Last updated in NPPES Jul 17, 2012
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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
Is NPI 1508931601 active?
Yes, as of the latest NPPES snapshot, NPI 1508931601 is active (record last updated 2012-07-17).
How do I verify Michael Fain's NPI record?
Cross-check NPI 1508931601 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-17.