Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Catherine Ann Thielen, PSYD

Individual provider Clinical Psychologist · NPI 1356551287

Catherine Ann Thielen, PSYD is a Clinical Psychologist in Irvine, California. Qualified in 2007, 19 years ago. Practices with Chiron Psychological Inc, a 15-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
19
Licensed in
CA
In the registry since
2007
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

19742 Macarthur Blvd Ste 100
Irvine, CA 92612-2408
Phone: (714) 646-8034
Fax: (714) 492-8264
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 18200 Yorba Linda Blvd Ste 106, Yorba Linda, CA 92886-4006 — (714) 646-8034

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY30762 (CA)

Record details

NPI number1356551287
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorNo
NPI enumeratedMay 22, 2007
Last updated in NPPESApril 19, 2024
Certification dateApril 19, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Chiron Psychological Inc — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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