William Ralph, PHD
NPI 1295796233 · Clinical Psychologist · San Francisco, CA
William Ralph, PHD is a Clinical Psychologist provider in San Francisco, CA (NPI 1295796233).
Provider details
- NPI number
- 1295796233
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- License
- PSY11009 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2006-03-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Ralph's NPI number?
- William Ralph's National Provider Identifier (NPI) is 1295796233, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Ralph's specialty?
- William Ralph is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Ralph located?
- William Ralph's practice location on file with NPPES is 801 Portola Dr, San Francisco, CA 94127.
- What is William Ralph's phone number?
- The practice phone number listed in the NPPES registry for William Ralph is (415) 515-2261.
- Is William Ralph's NPI active?
- Yes — William Ralph's NPI (1295796233) 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.