Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Ron M Oren, MD

Individual provider Cardiovascular Disease Physician · NPI 1366422438

Ron M Oren, MD is a Cardiovascular Disease (Cardiology) in Naperville, Illinois. Graduated from Rush Medical College of Rush University in 1986, 40 years ago. Practices with Froedtert Manitowoc Medical Group, LLC, a 157-clinician group, works from 6 locations and accepts Medicare assignment. Licensed in Iowa, Illinois, Indiana and Wisconsin.

Years since qualifying
40
Trained at
Rush Medical College of Rush University
Licensed in
IA, IL, IN, WI
In the registry since
2006
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

801 S Washington St Fl 4
Naperville, IL 60540-7430
Phone: (630) 600-0700
Fax: (630) 600-0701
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • 202 10th St Se Ste 225, Cedar Rapids, IA 52403-2419 — (319) 364-7101
  • 1404 Cross St Ste 2940, Shiloh, IL 62269-2988 — (618) 607-3700
  • 1201 Michigan Ave Ste 50, Logansport, IN 46947-1580 — (574) 753-1407
  • 225 Smith Ave N, Saint Paul, MN 55102-2533 — (651) 290-0133
  • 1818 N Meade St, Appleton, WI 54911-3454 — (920) 731-8900

Specialties & licences

Advanced Heart Failure and Transplant Cardiology Physician (primary) Taxonomy 207RA0001X · Licence 036130701 (IL)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 628 (WI)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence MD-27129 (IA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 036-130701 (IL)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 01097002A (IN)

Record details

NPI number1366422438
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 17, 2006
Last updated in NPPESMay 5, 2026
Certification dateMay 5, 2026
Mailing address801 S Washington St Fl 4, Naperville, IL 60540-7430

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 1986 (40 years in practice)
Group practice Froedtert Manitowoc Medical Group, Llc — 157 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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