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William Fisher, M.D,
NPI 1134253354 · Psychiatry Physician · Walnut Creek, CA
William Fisher, M.D, is a Psychiatry Physician provider in Walnut Creek, CA (NPI 1134253354).
Provider details
- NPI number
- 1134253354
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D,
- Sex
- Male
- Sole proprietor
- No
- License
- G77013 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 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
201 N Civic Dr Ste 183
Walnut Creek, CA 94596-3864
Phone: (925) 299-9033
Fax: (925) 299-9030
Street-level locationGet directions
Mailing address
3835 N Freeway Blvd Ste 100
Sacramento, CA 95834-1954
Registry dates
- Enumerated
- 2007-03-16
- Last updated
- 2018-03-23
Frequently asked questions
- What is William Fisher's NPI number?
- William Fisher's National Provider Identifier (NPI) is 1134253354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Fisher's specialty?
- William Fisher is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Fisher located?
- William Fisher's practice location on file with NPPES is 201 N Civic Dr Ste 183, Walnut Creek, CA 94596-3864.
- What is William Fisher's phone number?
- The practice phone number listed in the NPPES registry for William Fisher is (925) 299-9033.
- Is William Fisher's NPI active?
- Yes — William Fisher's NPI (1134253354) is active in the NPPES registry as of the last update on 2018-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.