GREGORY CLARKE M.D., S.C.
NPI 1881903789
Clinic/Center - Medical Specialty in Chicago, IL

Q: What is Gregory Clarke M.D., S.C.'s NPI number?

The NPI number for Gregory Clarke M.D., S.C. is 1881903789. It was assigned to this organization in the NPPES registry on September 27, 2010.

Q: What is Gregory Clarke M.D., S.C.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

Active since September 27, 2010

333 N MICHIGAN AVE, SUITE 2014, CHICAGO, IL 60601(312) 236-3175(312) 236-3177 Get Directions Write a Review

NPPES record last updated: September 27, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Gregory Clarke M.d., S.c. NPPES

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

GREGORY CLARKE M.D., S.C. (NPI 1881903789) is a healthcare organization registered as a medical specialty in Chicago, Illinois and active in the NPI registry since September 2010. The organization lists Gregory Clarke, President/owner, as its authorized official.

NPPES Registry Identity

NPI1881903789

Entity TypeOrganization

Primary Taxonomy261QM2500X

Legal Business NameGREGORY CLARKE M.D., S.C.

Location Address333 N MICHIGAN AVE, SUITE 2014Chicago, IL 60601-3901

Mailing AddressPo Box 802080Chicago, IL 60680-2080 · (312) 236-3175 · Fax (312) 236-3177

Phone(312) 236-3175

Fax(312) 236-3177

Organization SubpartNo

Authorized OfficialGregory ClarkePresident/owner · (312) 236-3175

Enumeration DateSeptember 27, 2010

✔ NPI 1881903789 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Medical SpecialtyAmbulatory Health Care Facilities

Taxonomy Code261QM2500X

License✔ Licensed in IL · 036-071641

Definition

An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or to meet specific public health needs (e.g., infectious diseases or breast and cervical cancer).

333 N MICHIGAN AVE, Chicago, IL 60601

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Other Identifiers 1

Medicare UPIND16460IL

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. AVIVA CAHN LCSW

Social Worker (Clinical)

333 N MICHIGAN AVE, SUITE 1801
CHICAGO, IL 60601

Cook County (773) 301-8576

KRISTIN CONLON

Psychologist (Clinical)

333 N MICHIGAN AVE
CHICAGO, IL 60601

Cook County (847) 759-9110

STEVEN ZUCKERMAN PH.D.

Marriage & Family Therapist

333 N MICHIGAN AVE, STE. #1801
CHICAGO, IL 60601

Cook County (847) 853-8639

LAUREN ELIZABETH NICKERSON MS, RD, LDN

Dietitian, Registered

333 N MICHIGAN AVE, SUITE 1900
CHICAGO, IL 60601

Cook County (312) 540-9955

HEATHER N.MCCOMBS, DPM,LLC

Podiatrist

333 N MICHIGAN AVE, SUITE 932
CHICAGO, IL 60601

Cook County (773) 883-1220

DR. KELLY JANE BALK PSY.D., L.P.

Psychologist (Clinical)

333 N MICHIGAN AVE, SUITE 1900
CHICAGO, IL 60601

Cook County (773) 321-2761

CHICAGO COMPASS COUNSELING, LLC

Social Worker (Clinical)

333 N MICHIGAN AVE
CHICAGO, IL 60601

Cook County (312) 715-8234

GINA PICCHIOTTI PSYD

Psychologist (Clinical)

333 N MICHIGAN AVE, 1900
CHICAGO, IL 60601

Cook County (773) 321-2758

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 Gregory Clarke M.D., S.C.'s NPI number?

The NPI number for Gregory Clarke M.D., S.C. is 1881903789. It was assigned to this organization in the NPPES registry on September 27, 2010.

Where is Gregory Clarke M.D., S.C. located?

Gregory Clarke M.D., S.C. is located at 333 N Michigan Ave Suite 2014, Chicago, IL 60601. The listed phone number is (312) 236-3175.

What is Gregory Clarke M.D., S.C.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

When was this NPI record last updated?

The NPPES record for Gregory Clarke M.D., S.C. was last updated on September 27, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.