Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas F Drost Jr., M.D.

General Practice Physician in Wheaton, IL · enumerated 2006 · practices at Drost Corporation.

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

National Provider Identifier

1164504874

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas F Drost Jr.

Credential M.D.

Sex Male

Practice address 721 E Roosevelt Rd, Wheaton, IL, 60187

Phone (630) 871-1800

Fax (630) 871-8118

Enumeration date Oct 20, 2006

Last updated in NPPES May 18, 2020

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036109183 (IL) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 036109183 (IL) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 036-109183 (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
036-109183	Medicaid	IL	-
1702315	Other	IL	UNITED HEALTHCARE
20-3259708	Other	IL	HUMANA
20-3259708	Other	ID	GREAT WEST
P00769961	Other	IL	RAILROAD MEDICARE
01635423	Other	IL	BCBS PPO
20-3259708	Other	ID	UNITED HEALTHCARE

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 Drost's NPI record?

Cross-check NPI 1164504874 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1164504874 active?

Yes, as of the latest NPPES snapshot, NPI 1164504874 is active (record last updated 2020-05-18).

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Gary Arbuckle Chiropractor · Wheaton, IL NPI 1386702769 Carolyn Molskow Physical Therapist · Wheaton, IL NPI 1578788360 Drost Corporation General Practice Physician · Wheaton, IL NPI 1962778324

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-18.