Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas A Cornwell, MD

Family Medicine Physician in Wheaton, IL · enumerated 2006 · practices at Dupage Medical Group, Ltd..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1386679082

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Registry record

Entity type Individual (Type 1)

Name Thomas A Cornwell

Credential MD

Sex Male

Practice address 1800 N Main St, Second Floor, Wheaton, IL, 60187

Phone (630) 614-4960

Fax (630) 682-3727

Enumeration date Jul 11, 2006

Last updated in NPPES Mar 6, 2025

Taxonomy & licenses

207QH0002X Hospice and Palliative Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 036075646 (IL) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036075646 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
P00996567	Other	IL	RR MEDICARE PTAN (INDIVIDUAL)
036075646	Medicaid	IL	-
L66622	Other	IL	MEDICARE PTAN (INDIVIDUAL)

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Thomas Cornwell's NPI record?

Cross-check NPI 1386679082 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1386679082 active?

Yes, as of the latest NPPES snapshot, NPI 1386679082 is active (record last updated 2025-03-06).

Other providers at this practice address

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Marla Krueger Nurse Practitioner · Wheaton, IL NPI 1407855919 Audrey Richardson Family Medicine Physician · Wheaton, IL NPI 1326031196 Maryanne Miller Internal Medicine Physician · Wheaton, IL NPI 1275500613 Stephen Pierson Internal Medicine Physician · Wheaton, IL NPI 1518935360 Lenora Su Family Medicine Physician · Wheaton, IL NPI 1356301170 Paul Chiang Geriatric Medicine (Internal Medicine) Physician · Wheaton, IL NPI 1902831696 Ancy Zacharia Nurse Practitioner · Wheaton, IL NPI 1053450494 Dupage Medical Group, Ltd. Durable Medical Equipment & Medical Supplies · Wheaton, IL NPI 1457596124

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-06.