DR. TERRY ANN DORNAK VILORIA PSY.D.
NPI 1902286974
Psychologist - Clinical in Evanston, IL

Q: What is Terry Ann Viloria's NPI number?

The NPI number for Terry Ann Viloria is 1902286974. It was assigned to this individual provider in the NPPES registry on June 4, 2015. The provider is also known as Terry Dornak Psyd.

Q: What is Terry Ann Viloria'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 Terry Ann Viloria was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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 June 04, 2015PECOS Enrolled

1603 ORRINGTON AVE, EVANSTON, IL 60201(872) 999-0542(847) 972-6445 Get Directions Write a Review

NPPES record last updated: June 29, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 27, 2026, Sep 13, 2021, Jul 26, 2021 and 1 more (4 updates tracked since 2016).

On this page

About Dr. Terry Ann Dornak Viloria Psy.d. NPPES

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

DR. TERRY ANN DORNAK VILORIA PSY.D. (NPI 1902286974) is an individual clinical provider in Evanston, Illinois, licensed in Illinois (071009088) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1902286974

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. TERRY ANN DORNAK VILORIACredential: PSY.D.

Location Address1603 ORRINGTON AVEEvanston, IL 60201-3841

Mailing Address8941 Marmora AveMorton Grove, IL 60053-2448 · (872) 999-0542 · Fax (847) 972-6445

Phone(872) 999-0542

Fax(847) 972-6445

Sole ProprietorYes

Enumeration DateJune 4, 2015

Last NPPES UpdateJune 29, 20264 updates tracked since enumeration

NPPES CertifiedJune 29, 2026

✔ NPI 1902286974 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 · 071009088

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.

1603 ORRINGTON AVE, Evanston, IL 60201

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Other Names 1

Professional Name (2)Terry Dornak Psyd

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Terry Ann Dornak Viloria Psy.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Terry Ann Viloria reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Chicago Psych Therapy Group, Inc.

Same address

Clinical

1603 ORRINGTON AVE
Evanston, IL 60201

Reassigned Medicare billing, Illinois enrollment
2 clinicians in this Medicare group

NPI 1184165383 (312) 781-2850

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60201 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.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHICAGO PSYCH THERAPY GROUP, INC.

Psychologist (Clinical)

1603 ORRINGTON AVE
EVANSTON, IL 60201

Cook County (312) 781-2850

LEGACY PHYSIATRY GROUP ILLINOIS, LLC

Physical Medicine & Rehabilitation

1603 ORRINGTON AVE, STE 600
EVANSTON, IL 60201

Cook County (972) 372-1663

EDEN CONROY

Counselor (Mental Health)

1603 ORRINGTON AVE
EVANSTON, IL 60201

Cook County (312) 781-2850

PEAKLIFEMD, S.C.

Psychiatry & Neurology (Psychiatry)

1603 ORRINGTON AVE, SUITE 600
EVANSTON, IL 60201

Cook County (847) 946-0855

RUINING YE

Counselor (Mental Health)

1603 ORRINGTON AVE
EVANSTON, IL 60201

Cook County (312) 781-2850

JOAN LYNCH

Psychiatry & Neurology (Psychiatry)

1603 ORRINGTON AVE
EVANSTON, IL 60201

Cook County (847) 864-3738

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 Terry Ann Viloria's NPI number?

The NPI number for Terry Ann Viloria is 1902286974. It was assigned to this individual provider in the NPPES registry on June 4, 2015. The provider is also known as Terry Dornak Psyd.

Where is Terry Ann Viloria located?

Terry Ann Viloria practices at 1603 Orrington Ave, Evanston, IL 60201. The listed phone number is (872) 999-0542.

What is Terry Ann Viloria's specialty?

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

Is Terry Ann Viloria enrolled in Medicare?

Yes. Terry Ann Viloria is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Terry Ann Viloria's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Terry Ann Viloria reassigns Medicare benefits to Chicago Psych Therapy Group, Inc. (Evanston, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Terry Ann Viloria's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Terry Ann Viloria accept?

Health plans from Oscar Health and UnitedHealthcare list Terry Ann Viloria as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Terry Ann Viloria was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.