CLARK S TSAI, M.D. INC
NPI 1932476991
Ophthalmology in Oakland, CA

Q: What is Clark S Tsai, M.D. Inc's NPI number?

The NPI number for Clark S Tsai, M.D. Inc is 1932476991. It was assigned to this organization in the NPPES registry on November 18, 2011.

Q: What is Clark S Tsai, M.D. Inc's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Active since November 18, 2011

638 WEBSTER ST, SUITE 358, OAKLAND, CA 94607(925) 864-8886(925) 689-7748 Get Directions Write a Review

NPPES record last updated: December 9, 2011. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Clark S Tsai, M.d. Inc NPPES

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

CLARK S TSAI, M.D. INC (NPI 1932476991) is a healthcare organization registered as an ophthalmology in Oakland, California and active in the NPI registry since November 2011. The organization lists Clark S Tsai, Ceo/president, as its authorized official.

NPPES Registry Identity

NPI1932476991

Entity TypeOrganization

Primary Taxonomy207W00000X

Legal Business NameCLARK S TSAI, M.D. INC

Location Address638 WEBSTER ST, SUITE 358Oakland, CA 94607-4168

Mailing Address2225 Port Chicago HwyConcord, CA 94520-2051 · (925) 689-7744 · Fax (925) 689-7748

Phone(925) 864-8886

Fax(925) 689-7748

Organization SubpartNo

Authorized OfficialClark S TsaiCeo/president · (925) 864-8886

Enumeration DateNovember 18, 2011

Last NPPES UpdateDecember 9, 2011

✔ NPI 1932476991 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CA · G76192

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

638 WEBSTER ST, Oakland, CA 94607

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Other Identifiers 4

Medicaid00G761922CA

Medicare PINZZZ32492ZCA

Medicare NSC5415470001CA

Medicare UPINY27763CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 7

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

MS. MARGARITA ORONA M.A

Counselor

638 WEBSTER ST, STE. 358
OAKLAND, CA 94607

Alameda County (510) 427-8206

MULTI LINGUAL COUNSELING CENTER, INC

Community/Behavioral Health

638 WEBSTER ST, 400
OAKLAND, CA 94607

Alameda County (510) 451-0661

PATRICIA OLVERA

Marriage & Family Therapist

638 WEBSTER ST
OAKLAND, CA 94607

Alameda County (510) 451-0661

KAM Y CHEUNG MD A PROFESSION CORPORATION

Internal Medicine

638 WEBSTER ST, #328
OAKLAND, CA 94607

Alameda County (510) 268-9888

JESSICA NUNEZ PENA

Marriage & Family Therapist

638 WEBSTER ST, SUITE 400
OAKLAND, CA 94607

Alameda County (510) 451-0661

MULTI-LINGUAL COUNSELING CENTER INC.

Community/Behavioral Health

638 WEBSTER ST, SUITE 400
OAKLAND, CA 94607

Alameda County (510) 451-0661

LIM FAMILY MEDICAL CORPORATION

Family Medicine

638 WEBSTER ST, 450
OAKLAND, CA 94607

Alameda County (510) 832-8819

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 Clark S Tsai, M.D. Inc's NPI number?

The NPI number for Clark S Tsai, M.D. Inc is 1932476991. It was assigned to this organization in the NPPES registry on November 18, 2011.

Where is Clark S Tsai, M.D. Inc located?

Clark S Tsai, M.D. Inc is located at 638 Webster St Suite 358, Oakland, CA 94607. The listed phone number is (925) 864-8886.

What is Clark S Tsai, M.D. Inc's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

When was this NPI record last updated?

The NPPES record for Clark S Tsai, M.D. Inc was last updated on December 9, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.