Ryan V. Cantwell, MD
NPI 1023007457ActiveIndividual· Internal Medicine· Marietta, GA
Internal Medicine (MD) in Marietta, Georgia, trained at Morehouse School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $832,385 for 10,960 claims, against $164,853 paid for services in 2024. Novo Nordisk Inc was the largest of 26 companies reporting payments in 2025, $1,131 in all, mostly food and beverage.
Overview
| NPI | 1023007457 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 18, 2005 |
| Last updated in NPPES | Feb 19, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 048762 | GA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 745 |
|---|---|
| Services billed | 1,809 across 31 procedure codes |
| Paid by Medicare | $164,853 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,960 · 26,246 30-day fills |
|---|---|
| Patients | 1,169 |
| Total drug cost | $832,385 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Morehouse School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
Medical group
- Wellstar Medical Group LLCMarietta, GA · 3,093 clinicians
Hospital affiliations
- Piedmont Hospital, IncAtlanta, GA
- Wellstar Cobb Medical CenterAustell, GA
- Wellstar Kennestone Regional Medical CenterMarietta, GA
- Wellstar North Fulton Medical CenterRoswell, GA
- Wellstar Paulding Medical CenterHiram, GA
Other facilities
- Accentcare Home Health of GeorgiaHome health agency · Roswell, GA
- Centerwell Home HealthHome health agency · Kennesaw, GA
- Central Hh Care, An Amedisys CompanyHome health agency · Atlanta, GA
- Central Home Health Care, An Amedisys CompanyHome health agency · Douglasville, GA
- Wellstar Home Health, LLCHome health agency · Marietta, GA
- Wellstar Windy Hill HospitalLong-term care hospital · Marietta, GA
Industry payments (Open Payments)
- 2025$1,131 · 56 payments from 26 companies
- 2024$1,790 · 89 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $170.86 | 9 |
| Pfizer Inc. | $140.57 | 7 |
| Astellas Pharma US Inc | $98.72 | 4 |
| Abbvie Inc. | $64.28 | 3 |
| Lilly USA, LLC | $63.69 | 4 |
What the 2025 payments were for
- Food and Beverage$1,131 · 56 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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