Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ron M Oren, MD

Q: What is the NPI number for Ron Oren?

The National Provider Identifier (NPI) for Ron Oren is 1366422438, a Type 1 (individual) record in the CMS NPPES registry.

Advanced Heart Failure and Transplant Cardiology Physician in Naperville, IL · enumerated 2006.

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

National Provider Identifier

1366422438

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Registry record

Entity type Individual (Type 1)

Name Ron M Oren

Credential MD

Sex Male

Practice address 801 S Washington St Fl 4, Naperville, IL, 60540

Phone (630) 600-0700

Fax (630) 600-0701

Enumeration date Jan 17, 2006

Last updated in NPPES May 5, 2026

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 628 (WI) Secondary

207RA0001X Advanced Heart Failure and Transplant Cardiology Physician Allopathic & Osteopathic Physicians · License 036130701 (IL) Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MD-27129 (IA) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 036-130701 (IL) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 01097002A (IN) Secondary

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
1299560	Medicaid	IA	-
45321	Other	-	WELLMARK
71960	Other	-	MEDICARE GROUP
CA3899	Other	-	RR MEDICARE GROUP
P00253031	Other	-	RR MEDICARE

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Ron Oren?

The National Provider Identifier (NPI) for Ron Oren is 1366422438, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ron Oren practice?

The practice location on file with NPPES is in Naperville, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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