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

GREATER CHICAGO SPECIALTY PHYSICIANS LLC
NPI 1265712699
Internal Medicine - Rheumatology in Schaumburg, IL

Active since August 17, 2011CLIA Certified · 2 labs
80 WEST HILLCREST BLVD, SUITE 208, SCHAUMBURG, IL 60195(630) 339-5300(630) 339-5305 Get Directions Write a Review

NPPES record last updated: September 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 8, 2026, Aug 20, 2026, Jul 21, 2026 and 3 more (6 updates tracked since 2017).

About Greater Chicago Specialty Physicians Llc NPPES

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

GREATER CHICAGO SPECIALTY PHYSICIANS LLC (NPI 1265712699) is a healthcare organization registered as a rheumatology in Schaumburg, Illinois and active in the NPI registry since August 2011. The organization holds 2 active CLIA laboratory certificates, maintains 4 additional practice locations, and lists Kimberly Miller, Revenue Cycle Director, as its authorized official.

NPPES Registry Identity

NPI1265712699
Entity TypeOrganization
Primary Taxonomy207RR0500X
Legal Business NameGREATER CHICAGO SPECIALTY PHYSICIANS LLC
Location Address80 WEST HILLCREST BLVD, SUITE 208Schaumburg, IL 60195-3173
Mailing AddressPo Box 779362Chicago, IL 60677-0441 · (630) 339-5300 · Fax (630) 339-5305
Phone(630) 339-5300
Fax(630) 339-5305
Organization SubpartNo
Authorized OfficialKimberly MillerRevenue Cycle Director · (630) 895-2797
Enumeration DateAugust 17, 2011
Last NPPES UpdateSeptember 8, 20266 updates tracked since enumeration
NPPES CertifiedSeptember 4, 2026
✔ NPI 1265712699 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedChiropractorTaxonomy 111N00000X
80 WEST HILLCREST BLVD, Schaumburg, IL 60195
Open in Google Maps ↗

Secondary Practice Locations 4

Location 11S450 Summit Ave Ste 390Oakbrook Terrace, IL 60181-3976 · Phone (630) 339-5300
Location 21945 W Wilson Ave Ste 100Chicago, IL 60640-7927 · Phone (630) 339-5300 · Fax (630) 339-5305
Location 31500 McConnor Pkwy Ste 200Schaumburg, IL 60173-4330 · Phone (630) 339-5300
Location 411540 183rd PlOrland Park, IL 60467-9496 · Phone (630) 339-5300

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Greater Chicago Specialty Physicians Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

10

Medicare enrollment records show 10 clinicians reassign Medicare billing to Greater Chicago Specialty Physicians LLC, which bills Medicare for the services they deliver. Of these, 3 practice within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Rheumatology7
Chiropractic2
Nurse Practitioner1

Clinicians, nearest first (10)

Kamran Chaudhary, MD
Rheumatology
NPI 1356310338
80 W. HILLCREST BLVD SUITE 208
Schaumburg, IL 60195
(630) 339-5300
✔ PECOS✔ Accepts Medicare0.1 mi
Kayur Patel, D.O.
Rheumatology
NPI 1831333855
80 W HILLCREST BLVD STE 208
Schaumburg, IL 60195
(630) 339-5300
✔ PECOS✔ Accepts Medicare0.1 mi
Paul Castle, D.C.
Chiropractic
NPI 1528137353
1885 HICKS RD
Rolling Meadows, IL 60008
(847) 202-7860
✔ Accepts Medicare3.1 mi
Manish Jain, M.D.
Rheumatology
NPI 1417075581
1945 W WILSON AVE STE 100
Chicago, IL 60640
(773) 769-9040
✔ PECOS✔ Accepts Medicare22 mi
Daniel De Biasio, D.C.
Chiropractic
NPI 1295191781
10059 S ROBERTS RD
Palos Hills, IL 60465
(708) 598-9144
✔ Accepts Medicare28 mi
Batul Kagadawala, M.D.
Rheumatology
NPI 1396198354
5841 S MARYLAND AVE
Chicago, IL 60637
(312) 942-5000
✔ PECOS✔ Accepts Medicare31 mi
Alaa Alsakaty
Rheumatology
NPI 1518495092
12632 S HARLEM AVE
Palos Heights, IL 60463
(708) 587-0000
✔ PECOS✔ Accepts Medicare31 mi
Cory Conniff, MD
Rheumatology
NPI 1376539726
11540 183RD PL # NE-NW
Orland Park, IL 60467
(630) 339-5300
✔ PECOS✔ Accepts Medicare36 mi
Lena Saleh
Nurse Practitioner
NPI 1912737578
17901 GOVERNORS HWY STE 209
Homewood, IL 60430
(708) 942-1276
✔ PECOS✔ Accepts Medicare40 mi
Sarah Saeed, M.D.
Rheumatology
NPI 1639606411
530 NE GLEN OAK AVE
Peoria, IL 61637
(309) 655-6384
✔ PECOS✔ Accepts Medicare122 mi

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 2

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 Waiver 14D2175050

Greater Chicago Speciality Physicians/ C I S · Schaumburg, IL
Active · expires Nov 13, 2027
CLIA Number14D2175050
Laboratory TypePhysician Office
Certificate Effective DateNovember 14, 2025
Certificate Expiration DateNovember 13, 2027
Laboratory DirectorKamran Chaudhary M D
Laboratory Phone(630) 339-5300
Laboratory LocationGreater Chicago Speciality Physicians/ C I S80 W Hillcrest Blvd - Ste 208, Schaumburg, IL 60195
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 14D2227707

Greater Chicago Specialty Physicians, L L C · Orland Park, IL
Active · expires Jun 15, 2027
CLIA Number14D2227707
Laboratory TypePhysician Office
Certificate Effective DateJune 16, 2025
Certificate Expiration DateJune 15, 2027
Laboratory DirectorCory Conniff M D
Laboratory Phone(630) 339-5300
Laboratory LocationGreater Chicago Specialty Physicians, L L C11540 W 183rd Place - Unit Ne-Nw, Orland Park, IL 60467
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Greater Chicago Specialty Physicians LLC's NPI number?

The NPI number for Greater Chicago Specialty Physicians LLC is 1265712699. It was assigned to this organization in the NPPES registry on August 17, 2011.

Where is Greater Chicago Specialty Physicians LLC located?

Greater Chicago Specialty Physicians LLC is located at 80 West Hillcrest Blvd Suite 208, Schaumburg, IL 60195. The listed phone number is (630) 339-5300.

What is Greater Chicago Specialty Physicians LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Greater Chicago Specialty Physicians LLC enrolled in Medicare?

Yes. Greater Chicago Specialty Physicians LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Greater Chicago Specialty Physicians LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 3 Medicare specialties reassign their Medicare billing to Greater Chicago Specialty Physicians 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 Rheumatology (7), Chiropractic (2) and Nurse Practitioner (1). Of these, 3 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Greater Chicago Specialty Physicians LLC hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Greater Chicago Specialty Physicians LLC was last updated on September 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 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.