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THEA JUSTINE ROSSMILLER MSW, LCSW
NPI 1760121172
Social Worker - Clinical in Lake Forest, IL

Active since June 02, 2022PECOS Enrolled
1025 W EVERETT RD STE 4, LAKE FOREST, IL 60045(309) 252-0683 Get Directions Write a Review

NPPES record last updated: August 4, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Thea Justine Rossmiller Msw, Lcsw NPPES

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

THEA JUSTINE ROSSMILLER MSW, LCSW (NPI 1760121172) is an individual clinical provider in Lake Forest, Illinois and active in the NPI registry since June 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1760121172
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameTHEA JUSTINE ROSSMILLERCredential: MSW, LCSW
Location Address1025 W EVERETT RD STE 4Lake Forest, IL 60045-2668
Mailing Address17894 W Braewick RdGurnee, IL 60031-5207 · (309) 252-0683
Phone(309) 252-0683
Sole ProprietorNo
Enumeration DateJune 2, 2022
Last NPPES UpdateAugust 4, 2025
NPPES CertifiedAugust 4, 2025
✔ NPI 1760121172 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X
1025 W EVERETT RD STE 4, Lake Forest, IL 60045
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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)

Thea Justine Rossmiller Msw, Lcsw 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 Thea Rossmiller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Inspire Counseling Center, LLC
5.7 mi
Professional
3100 DUNDEE RD, SUITE 101
Northbrook, IL 60062
  • Reassigned Medicare billing, Illinois enrollment
  • 24 clinicians in this Medicare group
NPI 1295289726 (847) 313-9490

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 60045 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
$0.00 typical visit price
range $59.81 – $181.38
Typical copayment $0.00 (range $14.95 – $45.34)
Most-billed visit code NA
Established Patient
$74.38 typical visit price
range $19.15 – $147.12
Typical copayment $18.59 (range $4.78 – $36.78)
Most-billed visit code 99213
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 Thea Rossmiller's NPI number?

The NPI number for Thea Rossmiller is 1760121172. It was assigned to this individual provider in the NPPES registry on June 2, 2022.

Where is Thea Rossmiller located?

Thea Rossmiller practices at 1025 W Everett Rd Ste 4, Lake Forest, IL 60045. The listed phone number is (309) 252-0683.

What is Thea Rossmiller's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Thea Rossmiller enrolled in Medicare?

Yes. Thea Rossmiller is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Thea Rossmiller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thea Rossmiller reassigns Medicare benefits to Inspire Counseling Center, LLC (Northbrook, 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 Thea Rossmiller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thea Rossmiller accept?

Health plans from Oscar Health and UnitedHealthcare list Thea Rossmiller 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 Thea Rossmiller was last updated on August 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.