Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. GREGORY THOMAS OSWALD PSYD.
NPI 1770731119
Psychologist - Clinical in Plainfield, IL

Q: What is Gregory Oswald's NPI number?

The NPI number for Gregory Oswald is 1770731119. It was assigned to this individual provider in the NPPES registry on August 27, 2008.

Q: What is Gregory Oswald's specialty?

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

Q: Is Gregory Oswald enrolled in Medicare?

No. Gregory Oswald has opted out of Medicare through May 27, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Gregory Oswald was last updated on August 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days 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 27, 2008Opted out of Medicare · through May 27, 2027

24012 W RENWICK RD STE 204A, PLAINFIELD, IL 60544(630) 728-6445(815) 676-4498 Get Directions Write a Review

NPPES record last updated: August 29, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

On this page

About Mr. Gregory Thomas Oswald Psyd. NPPES

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

MR. GREGORY THOMAS OSWALD PSYD. (NPI 1770731119) is an individual clinical provider in Plainfield, Illinois, licensed in Illinois (071.007747) and active in the NPI registry since August 2008. He has opted out of Medicare through May 27, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1770731119

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameMR. GREGORY THOMAS OSWALDCredential: PSYD.

Location Address24012 W RENWICK RD STE 204APlainfield, IL 60544-8733

Mailing Address24012 W Renwick Rd Ste 204aPlainfield, IL 60544-8733 · (630) 728-6445 · Fax (815) 676-4498

Phone(630) 728-6445

Fax(815) 676-4498

Sole ProprietorYes

Enumeration DateAugust 27, 2008

Last NPPES UpdateAugust 29, 2026

NPPES CertifiedAugust 29, 2026

✔ NPI 1770731119 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in IL · 071.007747

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.

Also ListedCounselor · ProfessionalTaxonomy 101YP2500X · License 180.007747 (IL)

24012 W RENWICK RD STE 204A, Plainfield, IL 60544

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Mr. Gregory Thomas Oswald Psyd. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from May 27, 2015 through May 27, 2027.

Opt-Out Effective DateMay 27, 2015

Opt-Out In Effect ThroughMay 27, 2027Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60544 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

$181.38 typical visit price

range $59.81 – $181.38

Typical copayment $45.34 (range $14.95 – $45.34)

Most-billed visit code 99205

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

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 8

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

MR. COREY JAMES WORDEN MA, LCPC

Counselor