ILLINOIS DERMATOLOGY INSTITUTE, LLC
NPI 1891920898
Dermatology in Skokie, IL

Active since May 19, 2009CLIA 14D0726124 · Certificate of Compliance
9711 SKOKIE BLVD, SUITE J., SKOKIE, IL 60077(847) 675-9711 Get Directions Write a Review

NPPES record last updated: May 28, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Illinois Dermatology Institute, Llc NPPES

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

ILLINOIS DERMATOLOGY INSTITUTE, LLC (NPI 1891920898) is a healthcare organization registered as a dermatology in Skokie, Illinois and active in the NPI registry since May 2009. The organization holds a CLIA Certificate of Compliance certificate valid through June 30, 2028 and lists Keith A. Lopatka, President, as its authorized official.

NPPES Registry Identity

NPI1891920898
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameILLINOIS DERMATOLOGY INSTITUTE, LLC
Location Address9711 SKOKIE BLVD, SUITE J.Skokie, IL 60077-1384
Mailing Address903 Commerce Dr Ste 302Oak Brook, IL 60523-8830 · (847) 769-3539 · Fax (708) 671-1378
Organization SubpartNo
Authorized OfficialKeith A. LopatkaPresident · (708) 218-5874
Enumeration DateMay 19, 2009
Last NPPES UpdateMay 28, 2025
NPPES CertifiedMay 28, 2025
✔ NPI 1891920898 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
9711 SKOKIE BLVD, Skokie, IL 60077

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

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)

Illinois Dermatology Institute, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

48

Medicare enrollment records show 48 clinicians reassign Medicare billing to Illinois Dermatology Institute, LLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 11 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 8

Dermatology29
Nurse Practitioner11
Micrographic Dermatologic Surgery (MDS)2
Pathology2
General Surgery1
Micrographic Dermatologic Surgery1
Ophthalmology1
Otolaryngology1

Nearest to this location (20)

See all 48
Dermatology
NPI 1811097801
9711 SKOKIE BLVD
Skokie, IL 60077
(847) 675-9711
✔ PECOS✔ Accepts MedicareSame address
Dermatology
NPI 1104243070
9933 WOODS DR STE 200
Skokie, IL 60077
(847) 663-8060
✔ PECOS✔ Accepts Medicare0.8 mi
Nurse Practitioner
NPI 1891321188
1321 HACKBERRY LN
Winnetka, IL 60093
(847) 491-2135
✔ PECOS✔ Accepts Medicare3.7 mi
Dermatology
NPI 1548617350
7435 W TALCOTT AVE
Chicago, IL 60631
(773) 990-5978
✔ PECOS✔ Accepts Medicare6.0 mi
Dermatology
NPI 1386663631
1420 RENAISSANCE DR SUITE 208
Park Ridge, IL 60068
(847) 298-1831
✔ PECOS✔ Accepts Medicare6.4 mi
Dermatology
NPI 1083364525
1550 N NORTHWEST HWY STE 300
Park Ridge, IL 60068
(847) 298-1831
✔ PECOS✔ Accepts Medicare6.4 mi
Dermatology
NPI 1902031313
400 SKOKIE BLVD SUITE 475
Northbrook, IL 60062
(847) 272-4433
✔ PECOS✔ Accepts Medicare6.6 mi
Dermatology
NPI 1659683993
1200 SHERMER RD STE 200
Northbrook, IL 60062
(847) 559-0090
✔ PECOS✔ Accepts Medicare6.6 mi
Dermatology
NPI 1881674828
1535 LAKE COOK RD SUITE 401
Northbrook, IL 60062
(847) 480-1111
✔ PECOS✔ Accepts Medicare7.3 mi
Dermatology
NPI 1780140640
3122 N ASHLAND AVE
Chicago, IL 60657
(773) 687-7000
✔ PECOS✔ Accepts Medicare9.1 mi
Dermatology
NPI 1790131753
3000 N HALSTED ST STE 409
Chicago, IL 60657
(773) 281-9200
✔ PECOS✔ Accepts Medicare9.7 mi
Ophthalmology
NPI 1093104523
2448 N LINCOLN AVE
Chicago, IL 60614
(312) 872-8994
✔ PECOS✔ Accepts Medicare10 mi
Dermatology
NPI 1679004832
1725 W HARRISON ST STE 264
Chicago, IL 60612
(312) 694-6647
✔ PECOS✔ Accepts Medicare13 mi
Dermatology
NPI 1710372941
2160 S 1ST AVE
Maywood, IL 60153
(708) 216-8757
✔ PECOS✔ Accepts Medicare14 mi
Dermatology
NPI 1891788105
800 BIESTERFIELD RD STE 3002
Elk Grove Village, IL 60007
(847) 364-4717
✔ PECOS✔ Accepts Medicare14 mi
Dermatology
NPI 1265173736
1900 E GOLF RD # I125
Schaumburg, IL 60173
(847) 364-4717
✔ PECOS15 mi
Dermatology
NPI 1992365696
5000 S 5TH AVE
Hines, IL 60141
(708) 202-8387
✔ PECOS✔ Accepts Medicare15 mi
Dermatology
NPI 1194748962
2434 WOLF RD
Westchester, IL 60154
(708) 562-5430
✔ PECOS✔ Accepts Medicare17 mi
Dermatology
NPI 1114410982
7123 W ARCHER AVE
Chicago, IL 60638
(773) 586-4506
✔ PECOS✔ Accepts Medicare19 mi
Micrographic Dermatologic Surgery
NPI 1770560831
500 E OGDEN AVE 200
Hinsdale, IL 60521
(630) 325-6647
✔ PECOS✔ Accepts Medicare20 mi
See all 48 clinicians

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 14D0726124

Illinois Dermatology Institute · Skokie, IL
Active · expires Jun 30, 2028
CLIA Number14D0726124
Laboratory TypePhysician Office
Certificate Effective DateJuly 1, 2026
Certificate Expiration DateJune 30, 2028
Laboratory DirectorEvan C. Stokar
Laboratory Phone(847) 675-9711
Laboratory LocationIllinois Dermatology Institute4905 Old Orchard Ctr - Suite 200, Skokie, IL 60077
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 Illinois Dermatology Institute, LLC's NPI number?

The NPI number for Illinois Dermatology Institute, LLC is 1891920898. It was assigned to this organization in the NPPES registry on May 19, 2009.

Where is Illinois Dermatology Institute, LLC located?

Illinois Dermatology Institute, LLC is located at 9711 Skokie Blvd Suite J., Skokie, IL 60077. The listed phone number is (847) 675-9711.

What is Illinois Dermatology Institute, LLC's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Illinois Dermatology Institute, LLC enrolled in Medicare?

Yes. Illinois Dermatology Institute, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Illinois Dermatology Institute, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 48 clinicians in 8 Medicare specialties reassign their Medicare billing to Illinois Dermatology Institute, 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 Dermatology (29), Nurse Practitioner (11) and Micrographic Dermatologic Surgery (MDS) (2). Of these, 1 practice at this address and 11 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Illinois Dermatology Institute, LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 14D0726124) is associated with this NPI, valid through June 30, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Illinois Dermatology Institute, LLC accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource list Illinois Dermatology Institute, LLC 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 Illinois Dermatology Institute, LLC was last updated on May 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.