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MARCUS CLARK
NPI 1790847242
Internal Medicine - Rheumatology in Chicago, IL

Active since December 14, 2006PECOS EnrolledAccepts Medicare Assignment
5841 S MARYLAND AVE, CHICAGO, IL 60637(888) 824-0200 Get Directions Write a Review

NPPES record last updated: October 24, 2022. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Oct 24, 2022, May 19, 2022, Apr 18, 2022 and 1 more (4 updates tracked since 2022).

About Marcus Clark NPPES

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

MARCUS CLARK (NPI 1790847242) is an individual rheumatology provider in Chicago, Illinois, licensed in Illinois (036087330) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and is a graduate of Other (1984).

NPPES Registry Identity

NPI1790847242
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameMARCUS CLARK
Location Address5841 S MARYLAND AVEChicago, IL 60637-1443
Mailing Address150 Harvester Dr, Suite 300Burr Ridge, IL 60527-5919
Phone(888) 824-0200
Sole ProprietorNo
Medical School CMSOtherGraduated 1984
Enumeration DateDecember 14, 2006
Last NPPES UpdateOctober 24, 20224 updates tracked since enumeration
✔ NPI 1790847242 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in IL · 036087330
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.

5841 S MARYLAND AVE, Chicago, IL 60637
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marcus Clark is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3577743194
PECOS Enrollment IDI20110214000578
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

The University Of Chicago Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140088
Location5841 South MarylandChicago, IL 60637 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60637 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. ADAM BUCHANAN COCHRANE PHARM.D., BCPS
Pharmacist (Pharmacotherapy)
5841 S MARYLAND AVE, MC 5026
CHICAGO, IL 60637
Cook County (773) 702-3583
MRS. VINAY KUMARI GARG
Dietitian, Registered
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-8165
THOMAS L FISHER JR. MD., M.P.H
Emergency Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-9501
LINDA MARIE NAHLIK R.PH.
Pharmacist (Pharmacotherapy)
5841 S MARYLAND AVE, UNIVERSITY OF CHICAGO HOSPITALS
CHICAGO, IL 60637
Cook County (773) 834-2017
HEATHER M MACLEOD MS
Genetic Counselor, MS
5841 S MARYLAND AVE, MC 6088
CHICAGO, IL 60637
Cook County (773) 702-4310
RACHELLE J LORENZ M.S.
Genetic Counselor, MS
5841 S MARYLAND AVE, MC 0077
CHICAGO, IL 60637
Cook County (773) 834-9801
DR. MARCO G. PATTI MD
Surgery
5841 S MARYLAND AVE, MC 5031
CHICAGO, IL 60637
Cook County (773) 702-4865
DR. REBECCA LYNN BROWN M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
5841 S MARYLAND AVE, MC1027
CHICAGO, IL 60637
Cook County (773) 702-1000

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 Marcus Clark's NPI number?

The NPI number for Marcus Clark is 1790847242. It was assigned to this individual provider in the NPPES registry on December 14, 2006.

Where is Marcus Clark located?

Marcus Clark practices at 5841 S Maryland Ave, Chicago, IL 60637. The listed phone number is (888) 824-0200.

What is Marcus Clark's specialty?

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

Is Marcus Clark enrolled in Medicare?

Yes. Marcus Clark is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Marcus Clark affiliated with any hospitals?

According to CMS data, Marcus Clark is affiliated with The University Of Chicago Medical Center.

When was this NPI record last updated?

The NPPES record for Marcus Clark was last updated on October 24, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.