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CORNERSTONE SERVICES INC
NPI 1205816345
Clinic/Center - Mental Health (Including Community Mental Health Center) in Joliet, IL

Active since January 17, 2006
777 JOYCE RD, JOLIET, IL 60436(815) 741-7042(815) 741-6740 Get Directions Write a Review

NPPES record last updated: June 22, 2021. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jun 22, 2021, Jul 15, 2020, Apr 17, 2020 (3 updates tracked since 2020).

About Cornerstone Services Inc NPPES

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

CORNERSTONE SERVICES INC (NPI 1205816345) is a healthcare organization registered as a mental health (including community mental health center) in Joliet, Illinois and active in the NPI registry since January 2006. The organization lists Benjamin T Stortz, Chief Administrative Officer, as its authorized official.

NPPES Registry Identity

NPI1205816345
Entity TypeOrganization
Primary Taxonomy261QM0801X
Legal Business NameCORNERSTONE SERVICES INC
Location Address777 JOYCE RDJoliet, IL 60436-1876
Mailing Address777 Joyce RdJoliet, IL 60436-1876 · (815) 741-7042 · Fax (815) 741-6740
Phone(815) 741-7042
Fax(815) 741-6740
Organization SubpartNo
Authorized OfficialBenjamin T StortzChief Administrative Officer · (815) 741-7042
Enumeration DateJanuary 17, 2006
Last NPPES UpdateJune 22, 20213 updates tracked since enumeration
NPPES CertifiedJune 22, 2021
✔ NPI 1205816345 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Mental Health (Including Community Mental Health Center)Ambulatory Health Care Facilities
Taxonomy Code261QM0801X
777 JOYCE RD, Joliet, IL 60436
Open in Google Maps ↗

Other Identifiers 2

Other9919750IL · Blue Cross
OtherCG7573Palmetto Gba

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cornerstone Services Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Cornerstone Services Inc, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Cosme Lozano, M.D.
Psychiatry
NPI 1336160597
210 N HAMMES AVE SUITE 205
Joliet, IL 60435
(815) 729-7790
✔ PECOS✔ Accepts Medicare1.1 mi
Amanda Wessel, PMHNP-BC
Nurse Practitioner
NPI 1417197690
15025 S DES PLAINES ST STE 201
Plainfield, IL 60544
(630) 955-7808
✔ PECOS✔ Accepts Medicare7.5 mi
Rukayat Omolabi
Nurse Practitioner
NPI 1134887623
9718 S HALSTED ST
Chicago, IL 60628
(773) 233-4100
✔ PECOS✔ Accepts Medicare29 mi
Lynn Lochner, FNP-BC, PMHNP-BC
Nurse Practitioner
NPI 1801238282
187 S SCHUYLER AVE STE 500
Kankakee, IL 60901
(815) 823-8417
✔ PECOS✔ Accepts Medicare31 mi
Chequaleis Sargent, APRN
Nurse Practitioner
NPI 1871007930
111 E WISCONSIN AVE STE 1500
Milwaukee, WI 53202
(414) 361-2700
✔ PECOS✔ Accepts Medicare106 mi

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

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 Cornerstone Services Inc's NPI number?

The NPI number for Cornerstone Services Inc is 1205816345. It was assigned to this organization in the NPPES registry on January 17, 2006.

Where is Cornerstone Services Inc located?

Cornerstone Services Inc is located at 777 Joyce Rd, Joliet, IL 60436. The listed phone number is (815) 741-7042.

What is Cornerstone Services Inc's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.

Is Cornerstone Services Inc enrolled in Medicare?

Yes. Cornerstone Services Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Cornerstone Services Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 2 Medicare specialties reassign their Medicare billing to Cornerstone Services Inc. A 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 the clinician's services. The largest specialties are Nurse Practitioner (4) and Psychiatry (1). Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Cornerstone Services Inc was last updated on June 22, 2021. 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.