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

COUNTY OF LAKE
NPI 1659583920
Clinic/Center - Mental Health (Including Community Mental Health Center) in Park City, IL

Active since May 07, 2007
4118 GREENLEAF CT, PARK CITY, IL 60085(847) 377-8170 Get Directions Write a Review

NPPES record last updated: August 31, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 31, 2026, Sep 10, 2024, Jun 6, 2023 and 1 more (4 updates tracked since 2021).

About County Of Lake NPPES

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

COUNTY OF LAKE (NPI 1659583920), doing business as Lake County Health Department And Community Health Center, is a healthcare organization registered as a mental health (including community mental health center) in Park City, Illinois and active in the NPI registry since May 2007. The organization lists Sam Johnson, Deputy Executive Director, as its authorized official.

NPPES Registry Identity

NPI1659583920
Entity TypeOrganization
Primary Taxonomy261QM0801X
Legal Business NameCOUNTY OF LAKE
Location Address4118 GREENLEAF CTPark City, IL 60085-8509
Mailing Address3010 Grand AveWaukegan, IL 60085-2321 · (847) 377-8180 · Fax (847) 336-1517
Organization SubpartNo
Authorized OfficialSam JohnsonDeputy Executive Director · (847) 377-8000
Enumeration DateMay 7, 2007
Last NPPES UpdateAugust 31, 20264 updates tracked since enumeration
NPPES CertifiedAugust 31, 2026
✔ NPI 1659583920 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
4118 GREENLEAF CT, Park City, IL 60085

Other Names 1

Doing Business AsLake County Health Department And Community Health Center

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

County Of Lake is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

151

Medicare enrollment records show 151 clinicians reassign Medicare billing to County Of Lake, which bills Medicare for the services they deliver. Of these, 71 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 18

Nurse Practitioner46
Mental Health Counselor17
Clinical Social Worker16
Psychiatry16
Family Practice12
Pediatric Medicine12
Oral Surgery8
Internal Medicine5
10 other specialties19

Nearest to this location (20)

See all 151
Dentist
NPI 1215926290
135 N GREENLEAF ST SUITE 120
Gurnee, IL 60031
(847) 336-9165
✔ PECOS0.5 mi
Obstetrics/Gynecology
NPI 1710914189
3 S GREENLEAF ST STE A
Gurnee, IL 60031
(847) 244-0222
✔ PECOS✔ Accepts Medicare1.0 mi
Family Practice
NPI 1346449527
3210 GRAND AVE
Waukegan, IL 60085
(847) 220-4103
✔ PECOS✔ Accepts Medicare1.7 mi
Nurse Practitioner
NPI 1902457468
118 N FROLIC AVE
Waukegan, IL 60085
(847) 899-9746
✔ PECOS1.7 mi
Mental Health Counselor
NPI 1710395512
3010 GRAND AVE
Waukegan, IL 60085
(847) 377-8296
✔ PECOS1.9 mi
Dentist
NPI 1154446318
3010 GRAND AVE
Waukegan, IL 60085
(847) 377-8604
✔ PECOS1.9 mi
Mental Health Counselor
NPI 1639432909
3010 GRAND AVE
Waukegan, IL 60085
(847) 377-8200
✔ PECOS✔ Accepts Medicare1.9 mi
Mental Health Counselor
NPI 1578846259
3010 GRAND AVE
Waukegan, IL 60085
(847) 377-8862
✔ PECOS1.9 mi
Family Practice
NPI 1831352038
3010 GRAND AVE
Waukegan, IL 60085
(847) 377-8180
✔ PECOS✔ Accepts Medicare1.9 mi
Infectious Disease
NPI 1497985980
3010 GRAND AVE
Waukegan, IL 60085
(847) 377-8130
✔ PECOS✔ Accepts Medicare1.9 mi
Clinical Social Worker
NPI 1356840029
3010 GRAND AVE
Waukegan, IL 60085
(847) 377-8296
✔ PECOS1.9 mi
Clinical Social Worker
NPI 1871964197
3010 GRAND AVE
Waukegan, IL 60085
(847) 377-8173
✔ PECOS1.9 mi
Nurse Practitioner
NPI 1073318358
3010 GRAND AVE
Waukegan, IL 60085
(847) 377-8800
✔ PECOS✔ Accepts Medicare1.9 mi
Psychiatry
NPI 1487760195
3010 GRAND AVE CHILD AND ADOLESCENT BEHAVIORAL SERVICES
Waukegan, IL 60085
(847) 377-8950
✔ PECOS1.9 mi
Psychiatry
NPI 1023033610
3012 GRAND AVE
Waukegan, IL 60085
(847) 377-8180
✔ PECOS1.9 mi
Internal Medicine
NPI 1942290754
2504 WASHINGTON ST SUITE 601
Waukegan, IL 60085
(847) 662-1112
✔ PECOS2.1 mi
Internal Medicine
NPI 1215911805
2400 BELVIDERE RD
Waukegan, IL 60085
(847) 377-8400
✔ PECOS✔ Accepts Medicare2.2 mi
Oral Surgery
NPI 1255544516
2400 BELVIDERE RD
Waukegan, IL 60085
(847) 377-8440
✔ PECOS2.2 mi
Dentist
NPI 1417519638
6300 GRAND AVE
Gurnee, IL 60031
(224) 214-4902
✔ PECOS3.4 mi
Pediatric Medicine
NPI 1962439992
3333 GREEN BAY RD
North Chicago, IL 60064
(847) 578-3000
✔ PECOS4.5 mi
See all 151 clinicians

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 County Of Lake's NPI number?

The NPI number for County Of Lake is 1659583920. It was assigned to this organization in the NPPES registry on May 7, 2007. The provider is doing business as Lake County Health Department and Community Health Center.

Where is County Of Lake located?

County Of Lake is located at 4118 Greenleaf Ct, Park City, IL 60085. The listed phone number is (847) 377-8170.

What is County Of Lake'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 County Of Lake enrolled in Medicare?

Yes. County Of Lake is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through County Of Lake?

According to the CMS Revalidation Reassignment List (October 2026 release), 151 clinicians in 18 Medicare specialties reassign their Medicare billing to County Of Lake. 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 (46), Mental Health Counselor (17) and Clinical Social Worker (16). Of these, 71 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does County Of Lake accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list County Of Lake 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 County Of Lake was last updated on August 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 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.