Quick answers
- Does Omer N. Koc accept Medicare assignment?
- Yes. Medicare's clinician data says Omer N. Koc 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 Omer N. Koc see?
- In 2024, CMS data shows 536 Original Medicare patients and 1,674 services for Omer N. Koc. This counts Original Medicare only and measures volume, not quality.
- What is Omer N. Koc's NPI number?
- 1588629059. 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 Omer N. Koc, 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 | 536 |
|---|---|
| Services billed to Medicare | 1,674 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)756 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)630 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)82 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)60 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)33 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 cholesterol75%
- High blood pressure72%
- Arthritis56%
- Chronic kidney disease39%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)37%
- Ischemic heart disease30%
Hospitals where Omer N. Koc works
Medicare's Facility Affiliation Data lists Omer N. Koc 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.
- Akron General Medical CenterAkron, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 360027
- Cleveland ClinicCleveland, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360180
- Hillcrest HospitalMayfield Heights, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 360230
- Marymount HospitalGarfield Heights, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 360143
- South Pointe HospitalWarrensville Heights, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 360144
Practice locations
Addresses where Omer N. Koc is enrolled with Medicare (CMS data updated October 2, 2026).
- 9500 Euclid AveCleveland, OH 44195 (216) 444‑8636
Group practices
Medicare enrollment lists Omer N. Koc as a member of this group (CMS data updated October 2, 2026).
- Cleveland Clinic7,090 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Hematologyalso
- Internal Medicinealso
- Medical Oncologyalso
Other hematologist-oncologists 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 | 1987 (39 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1588629059 |
| 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