Ilka De Gast, PSYD
NPI 1649576851 · Psychologist · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ilka De Gast, PSYD is a Psychologist provider in Santa Rosa, CA (NPI 1649576851).
Provider details
- NPI number
- 1649576851
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSB33686 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
15 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
- 2011-02-04
- Last updated
- 2014-05-13
Frequently asked questions
- What is Ilka De Gast's NPI number?
- Ilka De Gast's National Provider Identifier (NPI) is 1649576851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ilka De Gast's specialty?
- Ilka De Gast is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Ilka De Gast located?
- Ilka De Gast's practice location on file with NPPES is 3569 Round Barn Cir, Santa Rosa, CA 95403-1757.
- What is Ilka De Gast's phone number?
- The practice phone number listed in the NPPES registry for Ilka De Gast is (707) 547-2222.
- Does Ilka De Gast accept Medicare?
- Ilka De Gast is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ilka De Gast's NPI active?
- Yes — Ilka De Gast's NPI (1649576851) is active in the NPPES registry as of the last update on 2014-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.