Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alfred Jan, O.D.

Optometrist in San Jose, CA · enumerated 2007.

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

National Provider Identifier

1790837722

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Alfred Jan

Credential O.D.

Sex Male

Practice address 5755 Cottle Rd, San Jose, CA, 95123

Phone (408) 972-3279

Fax (408) 972-3592

Enumeration date Jan 18, 2007

Last updated in NPPES Jan 3, 2022

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 6058 (CA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Alfred Jan?

Alfred Jan is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Jazmine Jung Genetic Counselor (M.S.) · San Jose, CA NPI 1144205238 Sharon Solomon Genetic Counselor (M.S.) · San Jose, CA NPI 1366427262 Aimee Fiorito Genetic Counselor (M.S.) · San Jose, CA NPI 1154306025 Erin Kennedy Genetic Counselor (M.S.) · San Jose, CA NPI 1194700930 Cindy Soliday Genetic Counselor (M.S.) · San Jose, CA NPI 1376523084 David Hensley Psychiatry Physician · San Jose, CA NPI 1548232911 Yani Bundros Marriage & Family Therapist · San Jose, CA NPI 1063585016 Elizabeth Hoodfar Genetic Counselor (M.S.) · San Jose, CA NPI 1316007149

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-03.