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GRAND OAKS BEHAVIORAL HEALTH LLC
NPI 1124242359
Psychologist - Clinical in Libertyville, IL

Active since April 11, 2007
1800 HOLLISTER DR, SUITE 201, LIBERTYVILLE, IL 60048(847) 549-1189(847) 932-4066 Get Directions Write a Review

NPPES record last updated: October 6, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Grand Oaks Behavioral Health Llc NPPES

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

GRAND OAKS BEHAVIORAL HEALTH LLC (NPI 1124242359) is a healthcare organization registered as a clinical in Libertyville, Illinois and active in the NPI registry since April 2007. The organization lists Marina Shakhman, Clinical Director, as its authorized official.

NPPES Registry Identity

NPI1124242359
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameGRAND OAKS BEHAVIORAL HEALTH LLC
Location Address1800 HOLLISTER DR, SUITE 201Libertyville, IL 60048-5263
Mailing Address1800 Hollister Dr, Suite 201Libertyville, IL 60048-5263 · (847) 549-1189 · Fax (847) 932-4066
Phone(847) 549-1189
Fax(847) 932-4066
Organization SubpartNo
Authorized OfficialMarina ShakhmanClinical Director · (847) 549-1189
Enumeration DateApril 11, 2007
Last NPPES UpdateOctober 6, 2021
NPPES CertifiedOctober 6, 2021
✔ NPI 1124242359 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
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.
1800 HOLLISTER DR, Libertyville, IL 60048
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Grand Oaks Behavioral Health Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

16

Medicare enrollment records show 16 clinicians reassign Medicare billing to Grand Oaks Behavioral Health LLC, which bills Medicare for the services they deliver. Of these, 8 practice at this address and 12 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Clinical Psychologist8
Clinical Social Worker4
Mental Health Counselor4

Clinicians, nearest first (16)

Carol Dreyer, LCPC
Mental Health Counselor
NPI 1598865875
1800 HOLLISTER DR STE 201
Libertyville, IL 60048
(847) 549-1189
✔ PECOS✔ Accepts MedicareSame address
Andrew Hamlyn, LCPC
Mental Health Counselor
NPI 1184376659
1800 HOLLISTER DR STE 201
Libertyville, IL 60048
(847) 549-1189
✔ PECOS✔ Accepts MedicareSame address
Jauren Kelly, PSY.D.
Clinical Psychologist
NPI 1831110220
1800 HOLLISTER DR STE 201
Libertyville, IL 60048
(847) 549-1189
✔ PECOS✔ Accepts MedicareSame address
Marisa Kunz, PSY.D.
Clinical Psychologist
NPI 1669625406
1800 HOLLISTER DR
Libertyville, IL 60048
(847) 721-4714
✔ PECOS✔ Accepts MedicareSame address
Benjamin Michaels, PSYD
Clinical Psychologist
NPI 1205579034
1800 HOLLISTER DR STE 201
Libertyville, IL 60048
(847) 549-1189
✔ PECOS✔ Accepts MedicareSame address
Ellen Rodman, LCPC
Mental Health Counselor
NPI 1689001182
1800 HOLLISTER DR STE 201
Libertyville, IL 60048
(847) 549-1189
✔ PECOS✔ Accepts MedicareSame address
Marina Shakhman, PSY.D.
Clinical Psychologist
NPI 1972537157
1800 HOLLISTER DR STE 201
Libertyville, IL 60048
(847) 549-1189
✔ PECOS✔ Accepts MedicareSame address
Izabella Sisarica, LCPC
Mental Health Counselor
NPI 1184639866
1800 HOLLISTER DR STE 201
Libertyville, IL 60048
(847) 549-1189
✔ PECOS✔ Accepts MedicareSame address
Frances Pacheco, PSY.D.
Clinical Psychologist
NPI 1881783389
1641 N MILWAUKEE AVE STE 7
Libertyville, IL 60048
(847) 362-6919
✔ PECOS✔ Accepts Medicare3.7 mi
Mary Catherine Navarro, LCSW
Clinical Social Worker
NPI 1750026886
1000 N WESTMORELAND RD
Lake Forest, IL 60045
(847) 535-6523
✔ PECOS✔ Accepts Medicare4.0 mi
Rebecca Weitz-Rice, LCSW
Clinical Social Worker
NPI 1295855971
3641 BERNAY DR
Northbrook, IL 60062
(847) 420-0734
✔ PECOS✔ Accepts Medicare8.2 mi
Abby Merel, LCSW
Clinical Social Worker
NPI 1013403518
604 ACADEMY DR
Northbrook, IL 60062
(847) 549-1189
✔ PECOS8.7 mi
Christine Petersen, PSY D
Clinical Psychologist
NPI 1033217385
2530 CRAWFORD AVE STE 212
Evanston, IL 60201
(773) 469-7339
✔ PECOS✔ Accepts Medicare17 mi
Debra Wolff, PSY.D.
Clinical Psychologist
NPI 1558452573
32 MAIN ST
Park Ridge, IL 60068
(847) 823-4444
✔ PECOS✔ Accepts Medicare18 mi
Angela Eads, PHD
Clinical Psychologist
NPI 1851368955
2160 S FIRST AVE FAHEY BLDG., RM. 222
Maywood, IL 60153
(708) 216-3750
✔ PECOS✔ Accepts Medicare27 mi
Leora Golan, LCSW
Clinical Social Worker
NPI 1770399354
971 US HIGHWAY 202 N STE N
Branchburg, NJ 08876
(609) 222-4675
✔ PECOS✔ Accepts Medicare698 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 Grand Oaks Behavioral Health LLC's NPI number?

The NPI number for Grand Oaks Behavioral Health LLC is 1124242359. It was assigned to this organization in the NPPES registry on April 11, 2007.

Where is Grand Oaks Behavioral Health LLC located?

Grand Oaks Behavioral Health LLC is located at 1800 Hollister Dr Suite 201, Libertyville, IL 60048. The listed phone number is (847) 549-1189.

What is Grand Oaks Behavioral Health LLC's specialty?

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

Is Grand Oaks Behavioral Health LLC enrolled in Medicare?

Yes. Grand Oaks Behavioral Health LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Grand Oaks Behavioral Health LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 16 clinicians in 3 Medicare specialties reassign their Medicare billing to Grand Oaks Behavioral Health LLC. 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 Clinical Psychologist (8), Clinical Social Worker (4) and Mental Health Counselor (4). Of these, 8 practice at this address and 12 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 Grand Oaks Behavioral Health LLC was last updated on October 6, 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.