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 patients | 155 |
|---|---|
| Services billed to Medicare | 365 |
| Different services or procedures | 59 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)63 services
- Replacement of aortic valve on heart-lung machine (33405)43 services
- Coronary artery bypass or valve procedure reoperation more than 1 month after original operation (33530)20 services
- Repair of aortic arch with graft on heart-lung machine (33871)14 services
- 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).
- 9500 Euclid AveCleveland, OH 44195 (216) 444‑6116
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
- Thoracic Surgeryprimary
Other thoracic surgeons in Cleveland
Clinicians with the same Medicare primary specialty in Cleveland, OH — not a recommendation.
Other clinicians in Cleveland Clinic
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871836536 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians