Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Joseph Duch, M.D.

Family Medicine Physician in Burr Ridge, IL · enumerated 2006.

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

National Provider Identifier

1609935436

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert Joseph Duch

Credential M.D.

Sex Male

Practice address 6101 S County Line Rd, Burr Ridge, IL, 60527

Phone (630) 686-9000

Fax (844) 235-2578

Enumeration date Dec 7, 2006

Last updated in NPPES Oct 8, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036076344 (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
080172327	Other	IL	RAILROAD MEDICARE
F100323989	Other	-	GROUP MEDICARE PTAN
208342	Other	-	MEDICARE GROUP PTAN
036076344	Medicaid	IL	-
208341	Other	IL	MEDICARE GROUP PTAN

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 Robert Duch's NPI record?

Cross-check NPI 1609935436 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1609935436 active?

Yes, as of the latest NPPES snapshot, NPI 1609935436 is active (record last updated 2021-10-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-08.