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William Adler, M.D.
NPI 1689930711 · Ophthalmology Physician · Lafayette, CA
William Adler, M.D. is a Ophthalmology Physician provider in Lafayette, CA (NPI 1689930711).
Provider details
- NPI number
- 1689930711
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- CFE26119 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(80/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
3751 St. Francis Dr.
Lafayette, CA 94549
Phone: (925) 284-2836
Fax: (925) 284-2836
Street-level locationGet directions
Mailing address
3751 Saint Francis Drive
Lafayette, CA 94549
Registry dates
- Enumerated
- 2012-04-03
- Last updated
- 2012-04-03
Frequently asked questions
- What is William Adler's NPI number?
- William Adler's National Provider Identifier (NPI) is 1689930711, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Adler's specialty?
- William Adler is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Adler located?
- William Adler's practice location on file with NPPES is 3751 St. Francis Dr., Lafayette, CA 94549.
- What is William Adler's phone number?
- The practice phone number listed in the NPPES registry for William Adler is (925) 284-2836.
- Is William Adler's NPI active?
- Yes — William Adler's NPI (1689930711) is active in the NPPES registry as of the last update on 2012-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.