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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.

JEFFREY CLARK MD
NPI 1457907321
Internal Medicine - Cardiovascular Disease in Chicago, IL

Active since August 15, 2019PECOS Enrolled
820 S WOOD ST STE 100, CHICAGO, IL 60612(312) 996-2933 Get Directions Write a Review

NPPES record last updated: June 30, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 1, 2026, Aug 15, 2019 (2 updates tracked since 2019).

About Jeffrey Clark Md NPPES

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

JEFFREY CLARK MD (NPI 1457907321) is an individual cardiovascular disease provider in Chicago, Illinois, licensed in Illinois (125.087172) and active in the NPI registry since August 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1457907321
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameJEFFREY CLARKCredential: MD
Location Address820 S WOOD ST STE 100Chicago, IL 60612-4325
Mailing Address820 S Wood St Ste 100Chicago, IL 60612-4325 · (312) 996-2933
Phone(312) 996-2933
Sole ProprietorYes
Enumeration DateAugust 15, 2019
Last NPPES UpdateJune 30, 20262 updates tracked since enumeration
NPPES CertifiedJune 30, 2026
✔ NPI 1457907321 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in IL · 125.087172
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
820 S WOOD ST STE 100, Chicago, IL 60612
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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 (PECOS)

Jeffrey Clark Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
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.

CAILEAN ELLIOT MCKAY MD
Student in an Organized Health Care Education/Training Program
820 S WOOD ST STE 100
CHICAGO, IL 60612
Cook County (312) 996-2933
KATHERINE ELIZABETH WINEBRAKE
Student in an Organized Health Care Education/Training Program
820 S WOOD ST STE 100
CHICAGO, IL 60612
Cook County (312) 996-2933
MR. RYAN WANG BS
Neurological Surgery
820 S WOOD ST STE 100
CHICAGO, IL 60612
Cook County (312) 996-2933
ABHISHEK DESHPANDE MD
Orthopaedic Surgery
820 S WOOD ST STE 100
CHICAGO, IL 60612
Cook County (312) 413-2048
JEFFREY CARL PETERSON MD, PHD
Ophthalmology
820 S WOOD ST STE 100
CHICAGO, IL 60612
Cook County (312) 996-2933
DR. ADDISON BAILEY WITT DO
Pediatrics
820 S WOOD ST STE 100
CHICAGO, IL 60612
Cook County (312) 996-2933
MAY BARAKAT
Family Medicine
820 S WOOD ST STE 100
CHICAGO, IL 60612
Cook County (312) 996-2933
IMARI C MCCULLOUGH
Student in an Organized Health Care Education/Training Program
820 S WOOD ST STE 100
CHICAGO, IL 60612
Cook County (312) 996-2933

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 Jeffrey Clark's NPI number?

The NPI number for Jeffrey Clark is 1457907321. It was assigned to this individual provider in the NPPES registry on August 15, 2019.

Where is Jeffrey Clark located?

Jeffrey Clark practices at 820 S Wood St Ste 100, Chicago, IL 60612. The listed phone number is (312) 996-2933.

What is Jeffrey Clark's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Jeffrey Clark enrolled in Medicare?

Yes. Jeffrey Clark is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Jeffrey Clark was last updated on June 30, 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.