Frederick Siglar
NPI 1346170586 · Mental Health Counselor · South Pasadena, CA
Frederick Siglar is a Mental Health Counselor provider in South Pasadena, CA (NPI 1346170586).
Provider details
- NPI number
- 1346170586
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
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
Under 1 yr in registry
- Profile completeness38% of score
83% 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
- 2026-05-20
- Last updated
- 2026-05-20
- Certified
- 2026-05-20
Frequently asked questions
- What is Frederick Siglar's NPI number?
- Frederick Siglar's National Provider Identifier (NPI) is 1346170586, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Siglar's specialty?
- Frederick Siglar is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Frederick Siglar located?
- Frederick Siglar's practice location on file with NPPES is 625 Fair Oaks Ave Ste 300, South Pasadena, CA 91030-5805.
- What is Frederick Siglar's phone number?
- The practice phone number listed in the NPPES registry for Frederick Siglar is (626) 441-4221.
- Is Frederick Siglar's NPI active?
- Yes — Frederick Siglar's NPI (1346170586) is active in the NPPES registry as of the last update on 2026-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.