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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

FRANCIS SIEW TAN
NPI 1790603637
Licensed Vocational Nurse in Alameda, CA

Active since July 08, 2026
1423 WEBSTER ST, ALAMEDA, CA 94501(510) 846-6857 Get Directions Write a Review

NPPES record added: July 8, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Francis Siew Tan NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

FRANCIS SIEW TAN (NPI 1790603637) is an individual licensed vocational nurse in Alameda, California, licensed in California (VN742612) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1790603637
Entity TypeIndividualMale
Primary Taxonomy164X00000X
Provider Legal NameFRANCIS SIEW TAN
Location Address1423 WEBSTER STAlameda, CA 94501-3824
Mailing Address1423 Webster StAlameda, CA 94501-3824 · (510) 846-6857
Phone(510) 846-6857
Sole ProprietorNo
Enumeration DateJuly 8, 2026
NPPES CertifiedJuly 3, 2026
✔ NPI 1790603637 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyLicensed Vocational NurseNursing Service Providers
Taxonomy Code164X00000X
License✔ Licensed in CA · VN742612
Definition
A licensed vocational nurse with post-high school vocational training and practical experience in the provision of nursing care at a level less than that required for certification as a Registered Nurse. [An alternate term for licensed practical nurse arising from difference in occupational titles between states and post-high school training programs and institutions.] Requirements for education, experience, licensure, and job responsibilities vary among the states.
1423 WEBSTER ST, Alameda, CA 94501
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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TAIYUN SHEN
Registered Nurse
1423 WEBSTER ST
ALAMEDA, CA 94501
Alameda County (510) 610-8045
MERLION HEALTH LLC
In Home Supportive Care
1423 WEBSTER ST
ALAMEDA, CA 94501
Alameda County (510) 846-6857

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Francis Tan's NPI number?

The NPI number for Francis Tan is 1790603637. It was assigned to this individual provider in the NPPES registry on July 8, 2026.

Where is Francis Tan located?

Francis Tan practices at 1423 Webster St, Alameda, CA 94501. The listed phone number is (510) 846-6857.

What is Francis Tan's specialty?

The primary specialty registered for this NPI is Licensed Vocational Nurse with taxonomy code 164X00000X.

When was this NPI record last updated?

The NPPES record for Francis Tan was last updated on July 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.