IndividualActive
Cheslyn Gan, O.D.
NPI 1417951120 · Optometrist · Walnut Creek, CA
Cheslyn Gan, O.D. is a Optometrist provider in Walnut Creek, CA (NPI 1417951120).
Provider details
- NPI number
- 1417951120
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- OPT 9246 T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 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
1553 Palos Verdes Mall
Walnut Creek, CA 94597-2228
Phone: (925) 934-9328
Fax: (925) 934-9383
Approximate (ZIP-level) locationGet directions
Mailing address
1553 Palos Verdes Mall
Walnut Creek, CA 94597-2228
Registry dates
- Enumerated
- 2005-06-09
- Last updated
- 2021-08-25
- Certified
- 2021-08-25
Frequently asked questions
- What is Cheslyn Gan's NPI number?
- Cheslyn Gan's National Provider Identifier (NPI) is 1417951120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cheslyn Gan's specialty?
- Cheslyn Gan is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Cheslyn Gan located?
- Cheslyn Gan's practice location on file with NPPES is 1553 Palos Verdes Mall, Walnut Creek, CA 94597-2228.
- What is Cheslyn Gan's phone number?
- The practice phone number listed in the NPPES registry for Cheslyn Gan is (925) 934-9328.
- Is Cheslyn Gan's NPI active?
- Yes — Cheslyn Gan's NPI (1417951120) is active in the NPPES registry as of the last update on 2021-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.