Srinivasu Chamarthy, MD
NPI 1912137647ActiveIndividual· Internal Medicine, Hematology & Oncology· Troy, OH
Internal Medicine, Hematology & Oncology (MD) with Premier Health Specialists Inc and 1 other group, practicing in Troy, Ohio. Their prescriptions cost Medicare Part D more than their services did: $1,078,979 for 1,116 claims, against $155,633 paid for services in 2024. Abbvie Inc. was the largest of 13 companies reporting payments in 2025, $904.40 in all, mostly food and beverage. Lists Grand Lake Health System and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1912137647 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 15, 2009 |
| Last updated in NPPES | May 11, 2026 |
| Certified by provider | May 11, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 35.121387 | OH |
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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 390 |
|---|---|
| Services billed | 1,447 across 12 procedure codes |
| Paid by Medicare | $155,633 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,116 · 1,432 30-day fills |
|---|---|
| Patients | 236 |
| Total drug cost | $1,078,979 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical groups
- Premier Health Specialists IncDayton, OH · 580 clinicians
- Wilson Care, LLCSidney, OH · 67 clinicians
Hospital affiliations
- Grand Lake Health SystemSaint Marys, OH
- Miami Valley HospitalDayton, OH
- Upper Valley Medical CenterTroy, OH
- Wilson Memorial HospitalSidney, OH
Other facilities
- Fidelity Health CareHome health agency · Moraine, OH
Industry payments (Open Payments)
- 2025$904.40 · 29 payments from 13 companies
- 2024$1,030 · 32 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $222.43 | 8 |
| Phathom Pharmaceuticals, Inc. | $125.00 | 1 |
| Adaptive Biotechnologies Corporation | $116.22 | 2 |
| Glaxosmithkline, LLC. | $75.54 | 1 |
| Genzyme Corporation | $72.32 | 2 |
What the 2025 payments were for
- Food and Beverage$904.40 · 29 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Hematology & Oncology providers in Ohio →