Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Ilka Louise De Gast, PSYD

Individual provider Mental Health Counselor · NPI 1649576851

Ilka Louise De Gast, PSYD is a Clinical Psychologist in Santa Rosa, California. Qualified in 2007, 19 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
19
Licensed in
CA
In the registry since
2011
Specialties on file
2
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

3569 Round Barn Cir
Santa Rosa, CA 95403-1757
Phone: (707) 547-2222
Fax: (707) 527-0472
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY24409 (CA)
Mental Health Counselor Taxonomy 101YM0800X · Licence PSB33686 (CA)

Record details

NPI number1649576851
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedFebruary 4, 2011
Last updated in NPPESMay 13, 2014

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)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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