Oleksandr Ivanovych Kovalchuk, M.D.
NPI 1437390788ActiveIndividual· Internal Medicine, Nephrology· Ocala, FL
Internal Medicine, Nephrology (M.D.) with Ocala Kidney Group Inc, practicing in Ocala, Florida. In 2024 Medicare paid $221,189 for 425 patients, and Part D covered 1,281 of their prescriptions, 88% of them generic. Vantive US Healthcare LLC was the largest of 12 companies reporting payments in 2025, $511.45 in all, mostly food and beverage. Lists Adventhealth Ocala and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1437390788 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 17, 2009 |
| Last updated in NPPES | Jun 29, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | ME103932 | FL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 425 |
|---|---|
| Services billed | 2,336 across 18 procedure codes |
| Paid by Medicare | $221,189 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,281 · 2,540 30-day fills |
|---|---|
| Patients | 191 |
| Total drug cost | $206,193 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Ocala Kidney Group IncOcala, FL · 13 clinicians
Hospital affiliations
- Adventhealth OcalaOcala, FL
- Marion Communtiy HospitalOcala, FL
- Tampa General Hospital Crystal RiverCrystal River, FL
Other facilities
- Concerto Florida LLCDialysis facility · Tamarac, FL
- Davita Ocala Central DialysisDialysis facility · Ocala, FL
- Davita Ocala Regional Kidney Center-EastDialysis facility · Ocala, FL
- Davita Ocala Regional Kidney Centers Home Dialysis Division PdDialysis facility · Ocala, FL
- Davita Silver Springs Shores DialysisDialysis facility · Ocala, FL
- Encompass Health Rehab Hospital of Central FloridaInpatient rehabilitation facility · Ocala, FL
Industry payments (Open Payments)
- 2025$511.45 · 23 payments from 12 companies
- 2024$304.96 · 13 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vantive US Healthcare LLC | $116.23 | 4 |
| Astrazeneca Pharmaceuticals LP | $73.42 | 3 |
| Otsuka America Pharmaceutical, Inc. | $58.96 | 2 |
| Travere Therapeutics, Inc. | $50.93 | 4 |
| Vifor Pharma, Inc. | $50.41 | 2 |
What the 2025 payments were for
- Food and Beverage$506.91 · 21 payments
- Education$4.54 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in Ocala
- 1427235241
- 1588602494
- 1629076419
- 1700198439
- 1720428402
- 1750585113
- 1851824783
- 1407891898
- 1881267904
- 1891793881