Michael K. Chahin, DO
NPI 1245735661ActiveIndividual· Internal Medicine, Hematology & Oncology· Savannah, GA
Internal Medicine, Hematology & Oncology (DO) in Savannah, Georgia, trained at Edward Via Col of Osteo Medicine-Carolinas Campus (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $552,678 for 215 claims, against $30,351 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 36 companies reporting payments in 2025, $2,255 in all, mostly food and beverage.
Overview
| NPI | 1245735661 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 27, 2018 |
| Last updated in NPPES | Apr 17, 2024 |
| Certified by provider | Apr 17, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 97404 | GA |
| Internal Medicine | 207R00000X | UO5873 | FL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 157 |
|---|---|
| Services billed | 1,775 across 31 procedure codes |
| Paid by Medicare | $30,351 |
Part D prescriptions in 2024
| Prescriptions (claims) | 215 · 289 30-day fills |
|---|---|
| Patients | 71 |
| Total drug cost | $552,678 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | Edward Via Col of Osteo Medicine-Carolinas Campus |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Candler Medical Oncology Practice LLCSavannah, GA · 27 clinicians
Hospital affiliations
- Candler HospitalSavannah, GA
- East Georgia Regional Medical CenterStatesboro, GA
- St Joseph's Hospital - SavannahSavannah, GA
Industry payments (Open Payments)
- 2025$2,255 · 111 payments from 36 companies
- 2024$1,392 · 51 payments from 26 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $241.35 | 11 |
| E.R. Squibb & Sons, L.L.C. | $208.47 | 11 |
| Novartis Pharmaceuticals Corporation | $161.57 | 11 |
| Celgene Corporation | $139.27 | 6 |
| Daiichi Sankyo Inc. | $136.45 | 5 |
What the 2025 payments were for
- Food and Beverage$2,235 · 110 payments
- Education$20.51 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other hematologist-oncologists in Savannah
- 1215009287
- 1245425966
- 1265486229
- 1326052085
- 1417971649
- 1548274004
- 1629393970
- 1861477721
- 1902810500
- 1649831314
- 1003217712
- 1386669240
All 16 hematologist-oncologists in Savannah · All hematologist-oncologists in Georgia