Rickey Williamson, PHD
NPI 1578619417 · Clinical Psychologist · Los Angeles, CA
Rickey Williamson, PHD is a Clinical Psychologist provider in Los Angeles, CA (NPI 1578619417).
Provider details
- NPI number
- 1578619417
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- PSY20072 (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
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
Mailing address
Registry dates
- Enumerated
- 2007-01-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Rickey Williamson's NPI number?
- Rickey Williamson's National Provider Identifier (NPI) is 1578619417, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rickey Williamson's specialty?
- Rickey Williamson is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Rickey Williamson located?
- Rickey Williamson's practice location on file with NPPES is 1720 E 120th St, Los Angeles, CA 90059-3052.
- What is Rickey Williamson's phone number?
- The practice phone number listed in the NPPES registry for Rickey Williamson is (310) 668-4356.
- Is Rickey Williamson's NPI active?
- Yes — Rickey Williamson's NPI (1578619417) 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.