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PETER MICHAEL KERWIN MD
NPI 1003862467
Internal Medicine - Interventional Cardiology in Downers Grove, IL

Active since May 26, 2006PECOS Enrolled
3825 HIGHLAND AVE, TOWER 2 SUITE 400, DOWNERS GROVE, IL 60515(630) 719-4799 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Peter Michael Kerwin Md NPPES

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

PETER MICHAEL KERWIN MD (NPI 1003862467) is an individual interventional cardiology provider in Downers Grove, Illinois and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003862467
Entity TypeIndividualMale
Primary Taxonomy207RI0011X
Provider Legal NamePETER MICHAEL KERWINCredential: MD
Location Address3825 HIGHLAND AVE, TOWER 2 SUITE 400Downers Grove, IL 60515-1552
Mailing Address1919 S Highland Ave, Suite B202 Attn Jan LewisLombard, IL 60148-6153 · (630) 268-1102 · Fax (630) 268-1125
Phone(630) 719-4799
Sole ProprietorNo
Enumeration DateMay 26, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1003862467 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RI0011X
Definition
An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.
3825 HIGHLAND AVE, Downers Grove, IL 60515
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Peter Michael Kerwin 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Peter Kerwin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Elmhurst Memorial Hospital
4.7 mi
General Acute Care Hospital
155 E BRUSH HILL RD
Elmhurst, IL 60126
  • Reassigned Medicare billing, Illinois enrollment
  • 205 clinicians in this Medicare group
NPI 1548306343 (331) 221-1000
Central Dupage Hospital Association
8.7 mi
General Acute Care Hospital
25 NORTH WINFIELD RD.
Winfield, IL 60190
  • Reassigned Medicare billing, Illinois enrollment
  • 129 clinicians in this Medicare group
NPI 1003864810 (630) 933-1600

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60515 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
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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.

BARRY SADEGI M.D.
Obstetrics & Gynecology (Maternal & Fetal Medicine)
3825 HIGHLAND AVE, 3B
DOWNERS GROVE, IL 60515
Dupage County (630) 434-9300
STEPHEN MICHAEL ROWLEY MD
Internal Medicine (Cardiovascular Disease)
3825 HIGHLAND AVE, TOWER 2 SUITE 400
DOWNERS GROVE, IL 60515
Dupage County (630) 719-4799
DR. KOTESWARA RAO BATCHU M.D.
Legal Medicine
3825 HIGHLAND AVE, SUITE 4B
DOWNERS GROVE, IL 60515
Dupage County (630) 963-4990
BARRY SADEGI, M.D., S.C.
Obstetrics & Gynecology
3825 HIGHLAND AVE, 3B
DOWNERS GROVE, IL 60515
Dupage County (630) 434-9300
DR. PAUL J WEST M.D.
Urology
3825 HIGHLAND AVE, SUITE 207
DOWNERS GROVE, IL 60515
Dupage County (630) 960-1498
DR. CYNTHIA ANN WOLLENSCHLAGER M.D.
Internal Medicine (Infectious Disease)
3825 HIGHLAND AVE, TOWER I, SUITE 3F
DOWNERS GROVE, IL 60515
Dupage County (630) 971-9275
MATTHEW OSCEOLA NORA MD
Internal Medicine (Clinical Cardiac Electrophysiology)
3825 HIGHLAND AVE, TOWER 2 SUITE 400
DOWNERS GROVE, IL 60515
Dupage County (630) 719-4799
ENSIGN MEDICAL INCORPORATED
Obstetrics & Gynecology
3825 HIGHLAND AVE, SUITE 3E
DOWNERS GROVE, IL 60515
Dupage County (630) 810-0358

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 Peter Kerwin's NPI number?

The NPI number for Peter Kerwin is 1003862467. It was assigned to this individual provider in the NPPES registry on May 26, 2006.

Where is Peter Kerwin located?

Peter Kerwin practices at 3825 Highland Ave Tower 2 Suite 400, Downers Grove, IL 60515. The listed phone number is (630) 719-4799.

What is Peter Kerwin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Peter Kerwin enrolled in Medicare?

Yes. Peter Kerwin is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Peter Kerwin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Kerwin reassigns Medicare benefits to 2 organizations: Elmhurst Memorial Hospital (Elmhurst, IL) and Central Dupage Hospital Association (Winfield, IL). Each 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 Peter Kerwin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Peter Kerwin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.