Willis Gelston, M.D.
NPI 1134188360 · Geriatric Medicine (Family Medicine) Physician · San Leandro, CA
Willis Gelston, M.D. is a Geriatric Medicine (Family Medicine) Physician provider in San Leandro, CA (NPI 1134188360).
Provider details
- NPI number
- 1134188360
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- C32875 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-03-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Willis Gelston's NPI number?
- Willis Gelston's National Provider Identifier (NPI) is 1134188360, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Willis Gelston's specialty?
- Willis Gelston is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Willis Gelston located?
- Willis Gelston's practice location on file with NPPES is 13851 E 14th St, San Leandro, CA 94578-2631.
- What is Willis Gelston's phone number?
- The practice phone number listed in the NPPES registry for Willis Gelston is (510) 351-2100.
- Is Willis Gelston's NPI active?
- Yes — Willis Gelston's NPI (1134188360) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.