Shirley Yan, OD
NPI 1477099257 · Optometrist · San Leandro, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shirley Yan, OD is a Optometrist provider in San Leandro, CA (NPI 1477099257).
Provider details
- NPI number
- 1477099257
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- OPT33620 TLG (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
Mailing address
Registry dates
- Enumerated
- 2017-01-17
- Last updated
- 2019-05-14
Frequently asked questions
- What is Shirley Yan's NPI number?
- Shirley Yan's National Provider Identifier (NPI) is 1477099257, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shirley Yan's specialty?
- Shirley Yan is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Shirley Yan located?
- Shirley Yan's practice location on file with NPPES is 15051 Hesperian Blvd, San Leandro, CA 94578-3536.
- What is Shirley Yan's phone number?
- The practice phone number listed in the NPPES registry for Shirley Yan is (510) 276-1212.
- Does Shirley Yan accept Medicare?
- Shirley Yan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shirley Yan's NPI active?
- Yes — Shirley Yan's NPI (1477099257) is active in the NPPES registry as of the last update on 2019-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.