Mariya H. Apostolova, MD
NPI 1649408477ActiveIndividual· Internal Medicine, Hematology & Oncology· Butler, PA
Internal Medicine, Hematology & Oncology (MD) with Cleveland Clinic and 1 other group, practicing in Butler, Pennsylvania. Their prescriptions cost Medicare Part D more than their services did: $2,506,574 for 875 claims, against $361,455 paid for services in 2024. Caris Mpi, Inc. was the largest of 4 companies reporting payments in 2025, $110.80 in all, mostly food and beverage. Lists Akron General Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1649408477 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 1, 2009 |
| Last updated in NPPES | Oct 29, 2020 |
| Certified by provider | Oct 29, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD450431 | PA |
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 - Hematology/Oncology (OH); Practitioner - Hematology/Oncology (PA); Practitioner - Hematology/Oncology (WV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 198 |
|---|---|
| Services billed | 18,390 across 82 procedure codes |
| Paid by Medicare | $361,455 |
Part D prescriptions in 2024
| Prescriptions (claims) | 875 · 1,076 30-day fills |
|---|---|
| Patients | 297 |
| Total drug cost | $2,506,574 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Cleveland ClinicCleveland, OH · 7,090 clinicians
- Reynolds Memorial Hospital, IncShadyside, OH · 153 clinicians
Hospital affiliations
- Akron General Medical CenterAkron, OH
- Cleveland ClinicCleveland, OH
- Geisinger Medical CenterDanville, PA
- Reynolds Memorial Hospital, IncGlen Dale, WV
- Wetzel County HospitalNew Martinsville, WV
Industry payments (Open Payments)
- 2025$110.80 · 5 payments from 4 companies
- 2024$195.14 · 8 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Caris Mpi, Inc. | $36.47 | 2 |
| Exelixis Inc. | $25.60 | 1 |
| Eisai Inc. | $25.14 | 1 |
| Janssen Biotech, Inc. | $23.59 | 1 |
What the 2025 payments were for
- Food and Beverage$110.80 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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