Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Thoracic Surgery

Marijan Koprivanac, MD

Works at hospitals in Cleveland, OH · Ohio

Summary

Dr. Marijan Koprivanac, MD is a thoracic surgeon at 9500 Euclid Ave, Cleveland, OH 44195. Phone: (216) 444-6116. Accepts Medicare assignment. In 2024, Marijan Koprivanac had 155 Original Medicare patients and 365 services. NPI 1871836536. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Thoracic surgeon (Medicare lists Thoracic Surgery)
  • Address: 9500 Euclid Ave, Cleveland, OH 44195 · Directions
  • Phone: (216) 444‑6116
  • Medicare: Accepts Medicare assignment
  • Hospital: Cleveland Clinic
  • Group practice: Cleveland Clinic
  • Medical school: graduated 2009 (17 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Marijan Koprivanac, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Marijan Koprivanac accept Medicare assignment?
Yes. Medicare's clinician data says Marijan Koprivanac accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Marijan Koprivanac see?
In 2024, CMS data shows 155 Original Medicare patients and 365 services for Marijan Koprivanac. This counts Original Medicare only and measures volume, not quality.
What is Marijan Koprivanac's NPI number?
1871836536. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Marijan Koprivanac, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients155
Services billed to Medicare365
Different services or procedures59
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)63 services
  2. Replacement of aortic valve on heart-lung machine (33405)43 services
  3. Coronary artery bypass or valve procedure reoperation more than 1 month after original operation (33530)20 services
  4. Repair of aortic arch with graft on heart-lung machine (33871)14 services
  5. Replacement of mitral valve on heart-lung machine (33430)13 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Ischemic heart disease74%
  • Heart failure71%
  • Atrial fibrillation62%
  • Chronic kidney disease38%

Hospitals where Marijan Koprivanac works

Medicare's Facility Affiliation Data lists Marijan Koprivanac at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Cleveland ClinicCleveland, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360180

Practice locations

Addresses where Marijan Koprivanac is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marijan Koprivanac as a member of this group (CMS data updated October 2, 2026).

  • Cleveland Clinic7,090 clinicians in the group

Specialties

Find other Thoracic Surgery doctors in Ohio →

Other thoracic surgeons in Cleveland

Clinicians with the same Medicare primary specialty in Cleveland, OH — not a recommendation.

All thoracic surgeons in Cleveland →

Other clinicians in Cleveland Clinic

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2009 (17 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871836536
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians