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William Quick, MD
NPI 1659438950 · Psychiatry Physician · San Francisco, CA
William Quick, MD is a Psychiatry Physician provider in San Francisco, CA (NPI 1659438950).
Provider details
- NPI number
- 1659438950
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G57368 (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
760 Market St Ste 945
San Francisco, CA 94102-2310
Phone: (415) 362-6368
Fax: (415) 956-9206
Street-level locationGet directions
Mailing address
760 Market Str Ste 945
San Francisco, CA 94102-2310
Registry dates
- Enumerated
- 2007-01-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Quick's NPI number?
- William Quick's National Provider Identifier (NPI) is 1659438950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Quick's specialty?
- William Quick is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Quick located?
- William Quick's practice location on file with NPPES is 760 Market St Ste 945, San Francisco, CA 94102-2310.
- What is William Quick's phone number?
- The practice phone number listed in the NPPES registry for William Quick is (415) 362-6368.
- Is William Quick's NPI active?
- Yes — William Quick's NPI (1659438950) 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.