Mark Jiaras, PSY.D.
NPI 1932110020 · Clinical Psychologist · Wilmette, IL
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Jiaras, PSY.D. is a Clinical Psychologist provider in Wilmette, IL (NPI 1932110020).
Provider details
- NPI number
- 1932110020
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 071-006111 (IL)
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
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
- 2006-08-11
- Last updated
- 2020-10-19
- Certified
- 2020-10-19
Frequently asked questions
- What is Mark Jiaras's NPI number?
- Mark Jiaras's National Provider Identifier (NPI) is 1932110020, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Jiaras's specialty?
- Mark Jiaras is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mark Jiaras located?
- Mark Jiaras's practice location on file with NPPES is 825 Green Bay Rd Ste 210, Wilmette, IL 60091-2500.
- What is Mark Jiaras's phone number?
- The practice phone number listed in the NPPES registry for Mark Jiaras is (847) 630-3900.
- Does Mark Jiaras accept Medicare?
- Mark Jiaras is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Jiaras's NPI active?
- Yes — Mark Jiaras's NPI (1932110020) is active in the NPPES registry as of the last update on 2020-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.