Catherine Thielen, PSYD
NPI 1356551287 · Clinical Psychologist · Irvine, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Thielen, PSYD is a Clinical Psychologist provider in Irvine, CA (NPI 1356551287).
Provider details
- NPI number
- 1356551287
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Female
- Sole proprietor
- No
- License
- PSY30762 (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
2 documented practice locations
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
Additional practice locations (1)
- 18200 Yorba Linda Blvd Ste 106Yorba Linda, CA 92886-4006Phone: (714) 646-8034Fax: (714) 492-8264
Registry dates
- Enumerated
- 2007-05-22
- Last updated
- 2024-04-19
- Certified
- 2024-04-19
Frequently asked questions
- What is Catherine Thielen's NPI number?
- Catherine Thielen's National Provider Identifier (NPI) is 1356551287, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Thielen's specialty?
- Catherine Thielen is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Catherine Thielen located?
- Catherine Thielen's practice location on file with NPPES is 19742 Macarthur Blvd Ste 100, Irvine, CA 92612-2408.
- What is Catherine Thielen's phone number?
- The practice phone number listed in the NPPES registry for Catherine Thielen is (714) 646-8034.
- Does Catherine Thielen accept Medicare?
- Catherine Thielen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Thielen's NPI active?
- Yes — Catherine Thielen's NPI (1356551287) is active in the NPPES registry as of the last update on 2024-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.