Grant Carlton Lewis, M.D.
NPI 1215009287ActiveIndividual· Internal Medicine, Hematology & Oncology· Savannah, GA
Internal Medicine, Hematology & Oncology (M.D.) in Savannah, Georgia, trained at Mercer University School of Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $5,415,012 for 1,288 claims, against $198,344 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 30 companies reporting payments in 2025, $2,278 in all, mostly food and beverage.
Overview
| NPI | 1215009287 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 15, 2006 |
| Last updated in NPPES | Jul 30, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 057719 | GA |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 31546 | SC |
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 | 638 |
|---|---|
| Services billed | 14,379 across 58 procedure codes |
| Paid by Medicare | $198,344 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,288 · 1,995 30-day fills |
|---|---|
| Patients | 262 |
| Total drug cost | $5,415,012 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | Mercer University School of Medicine |
|---|---|
| Graduation year | 2003 |
| 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
- Savannah Health Services LLC DBA Memorial Health University Medical CenterSavannah, GA
- St Joseph's Hospital - SavannahSavannah, GA
Industry payments (Open Payments)
- 2025$2,278 · 104 payments from 30 companies
- 2024$3,001 · 150 payments from 36 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $294.68 | 12 |
| Abbvie Inc. | $171.66 | 9 |
| Janssen Biotech, Inc. | $167.21 | 7 |
| Novartis Pharmaceuticals Corporation | $156.92 | 9 |
| Astrazeneca Pharmaceuticals LP | $129.39 | 6 |
What the 2025 payments were for
- Food and Beverage$2,213 · 102 payments
- Education$65.78 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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