Registry data as of Aug 27, 2026

Ron Oren, MD

Cardiovascular Disease Physician · Naperville, IL

Ron Oren, MD is a cardiovascular disease physician with a practice address in Naperville, Illinois, and NPI 1366422438, issued on Jan 17, 2006. Check the license (Illinois 036130701, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1366422438
Name
Ron Oren
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License numbers
036130701 IL
036-130701 IL
MD-27129 IA
01097002A IN
628 WI
Self-reported in NPPES; status is on the state search
Practice location
801 S Washington St FL 4, Naperville, IL 60540
Phone
(630) 600-0700
Enumerated
Jan 17, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 801 S Washington St FL 4

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Laura Badur, FNP-BCFamily Nurse Practitioner1386212975
  2. Abigail Bingham, APRNAcute Care Nurse Practitioner1548752843
  3. Maria Rosa Costanzo, MDAdvanced Heart Failure and Transplant Cardiology Physician1073564860
  4. Ann Davis, MDCardiovascular Disease Physician1528012846
  5. Krishna Nagendran, MDCardiovascular Disease Physician1265674691
  6. Abdullah Quddus, M.D.Internal Medicine Physician1578851515

Verify Ron Oren in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036130701
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

95% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

153 Medicare Part D claims for 51 beneficiaries, against an average of 3,149 among the 19,556 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Ron Oren153
  2. Specialty average3,149

Most prescribed

  1. Atorvastatin Calcium28 claims
  2. Bisoprolol Fumarate27 claims
  3. Eliquis16 claims
  4. Metoprolol Tartrate11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $21.65

1 payment, mostly food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 16,209 providers of this specialty with any payment received $4,923.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ron Oren$21.65
  2. Specialty average$4,923.81

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Froedtert Manitowoc Medical Group, LLCSheboygan, WI

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Cardiovascular Disease Physician providers in Illinois

There are 992 cardiovascular disease physician records in Illinois.

Other cardiovascular disease physician records in Illinois

  1. Nicolaos Abariotis, MDChicago, IL1417996257
  2. Tahir Abbasi, M.D.Hazel Crest, IL1255495701
  3. Ashraf Abourahma, M.D.Oak Lawn, IL1972561975
  4. Bruce Abramowitz, M.D.,F.A.C.C.Oak Lawn, IL1013918473
  5. Amjad Abualsuod, MDPeoria, IL1427346444
  6. Abdulrahman Abutaleb, M.D.Barrington, IL1891185609
  7. Karima AddetiaChicago, IL1740612993
  8. Keenan Adib, MDHinsdale, IL1790098804
  9. Alexander Adler, MDPeoria, IL1912929118
  10. Naveed Adoni, MDUrbana, IL1881644177

Common questions

What is Ron Oren, MD's NPI number?

Ron Oren, MD's National Provider Identifier (NPI) is 1366422438, issued on Jan 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ron Oren, MD located?

The NPPES record lists a practice address at 801 S Washington St FL 4, Naperville, IL, 60540. Phone: (630) 600-0700. Providers update this record themselves, so call before visiting.

How can I verify Ron Oren, MD's license?

NPPES lists Illinois license number 036130701, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ron Oren, MD prescribe under Medicare Part D?

In 2024, Ron Oren, MD had 153 Medicare Part D claims for 51 beneficiaries; the average among cardiovascular disease physician prescribers was 3,149. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.