What is Stephen Tanaka's NPI number?

Stephen Tanaka's National Provider Identifier (NPI) is 1790863553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Stephen Tanaka's specialty?

Stephen Tanaka is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).

Where is Stephen Tanaka located?

Stephen Tanaka's practice location on file with NPPES is 3553 Whipple Road, Union City, CA 95487-1507.

What is Stephen Tanaka's phone number?

The practice phone number listed in the NPPES registry for Stephen Tanaka is (510) 454-1000.

Is Stephen Tanaka's NPI active?

Yes — Stephen Tanaka's NPI (1790863553) is active in the NPPES registry as of the last update on 2015-08-03.

IndividualActive

Stephen Tanaka, M.D.

NPI 1790863553 · Ophthalmology Physician · Union City, CA

Stephen Tanaka, M.D. is a Ophthalmology Physician provider in Union City, CA (NPI 1790863553).

Provider details

NPI number: 1790863553
Entity type: Individual
Primary specialty: Ophthalmology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: G48300 (CA)

Specialties & taxonomies

Ophthalmology PhysicianPrimary207W00000XLicense G48300 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(90/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

3553 Whipple Road

Union City, CA 95487-1507

Phone: (510) 454-1000

Street-level locationGet directions

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Mailing address