DR. MARK GEORGE JIARAS PSY.D.
NPI 1932110020
Psychologist - Clinical in Wilmette, IL

Q: What is Mark Jiaras's NPI number?

The NPI number for Mark Jiaras is 1932110020. It was assigned to this individual provider in the NPPES registry on August 11, 2006.

Q: What is Mark Jiaras's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Mark Jiaras was last updated on October 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 11, 2006PECOS EnrolledAccepts Medicare Assignment

825 GREEN BAY RD STE 210, WILMETTE, IL 60091(847) 630-3900 Get Directions Write a Review

NPPES record last updated: October 19, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Mark George Jiaras Psy.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK GEORGE JIARAS PSY.D. (NPI 1932110020) is an individual clinical provider in Wilmette, Illinois, licensed in Illinois (071-006111) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1999).

NPPES Registry Identity

NPI1932110020

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. MARK GEORGE JIARASCredential: PSY.D.

Location Address825 GREEN BAY RD STE 210Wilmette, IL 60091-2500

Mailing Address1117 Lincoln StGlenview, IL 60025-2873 · (773) 794-0717 · Fax (773) 794-0787

Phone(847) 630-3900

Sole ProprietorYes

Medical School CMSOtherGraduated 1999

Enumeration DateAugust 11, 2006

Last NPPES UpdateOctober 19, 2020

NPPES CertifiedOctober 19, 2020

✔ NPI 1932110020 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in IL · 071-006111

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

825 GREEN BAY RD STE 210, Wilmette, IL 60091

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mark George Jiaras Psy.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1951600881

PECOS Enrollment IDI20160427002449

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60091 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$183.39 typical visit price

range $60.08 – $183.39

Typical copayment $45.84 (range $15.02 – $45.84)

Most-billed visit code 99205

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Jiaras's NPI number?

The NPI number for Mark Jiaras is 1932110020. It was assigned to this individual provider in the NPPES registry on August 11, 2006.

Where is Mark Jiaras located?

Mark Jiaras practices at 825 Green Bay Rd Ste 210, Wilmette, IL 60091. The listed phone number is (847) 630-3900.

What is Mark Jiaras's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Mark Jiaras enrolled in Medicare?

Yes. Mark Jiaras is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Mark Jiaras was last updated on October 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.