Frederick Williams, M.S.
NPI 1487996443 · Mental Health Counselor · Irvine, CA
Enrolled with Medicare as Practitioner - Marriage and Family Therapist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Williams, M.S. is a Mental Health Counselor provider in Irvine, CA (NPI 1487996443).
Provider details
- NPI number
- 1487996443
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- M.S.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 70785 (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
13 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
- 2013-03-17
- Last updated
- 2013-03-17
Frequently asked questions
- What is Frederick Williams's NPI number?
- Frederick Williams's National Provider Identifier (NPI) is 1487996443, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Williams's specialty?
- Frederick Williams is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Frederick Williams located?
- Frederick Williams's practice location on file with NPPES is 14795 Jeffrey Rd, Irvine, CA 92618-0414.
- What is Frederick Williams's phone number?
- The practice phone number listed in the NPPES registry for Frederick Williams is (949) 654-9163.
- Does Frederick Williams accept Medicare?
- Frederick Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Williams's NPI active?
- Yes — Frederick Williams's NPI (1487996443) is active in the NPPES registry as of the last update on 2013-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.