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William Bresnick, M.D.
NPI 1538227574 · Psychiatry Physician · San Francisco, CA
William Bresnick, M.D. is a Psychiatry Physician provider in San Francisco, CA (NPI 1538227574).
Provider details
- NPI number
- 1538227574
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G78434 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 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
250 Montgomery St
Suite 920
San Francisco, CA 94104-3406
Phone: (415) 391-1144
Street-level locationGet directions
Mailing address
250 Montgomery St
San Francisco, CA 94104-3406
Registry dates
- Enumerated
- 2006-12-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Bresnick's NPI number?
- William Bresnick's National Provider Identifier (NPI) is 1538227574, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Bresnick's specialty?
- William Bresnick is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Bresnick located?
- William Bresnick's practice location on file with NPPES is 250 Montgomery St, San Francisco, CA 94104-3406.
- What is William Bresnick's phone number?
- The practice phone number listed in the NPPES registry for William Bresnick is (415) 391-1144.
- Is William Bresnick's NPI active?
- Yes — William Bresnick's NPI (1538227574) 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.