Quick answers
- Which hospitals does Ryan V. Cantwell work at?
- Medicare's official clinician data lists Ryan V. Cantwell at 5 hospitals: Piedmont Hospital, Inc, Wellstar Cobb Medical Center, Wellstar Kennestone Regional Medical Center, Wellstar North Fulton Medical Center and Wellstar Paulding Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan V. Cantwell see patients?
- Medicare's clinician data lists 3 practice locations, including Marietta, GA and Kennesaw, GA. Call before your visit to confirm the address.
- What is Ryan V. Cantwell's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Ryan V. Cantwell accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan V. Cantwell accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Ryan V. Cantwell?
- (770) 427-2457, as listed in official Medicare / NPI Registry data.
- What is Ryan V. Cantwell's NPI number?
- 1023007457. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ryan V. Cantwell works
Medicare's Facility Affiliation Data lists Ryan V. Cantwell at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Piedmont Hospital, IncAtlanta, GA · Acute Care Hospital · CCN 110083
- Wellstar Cobb Medical CenterAustell, GA · Acute Care Hospital · CCN 110143
- Wellstar Kennestone Regional Medical CenterMarietta, GA · Acute Care Hospital · CCN 110035
- Wellstar North Fulton Medical CenterRoswell, GA · Acute Care Hospital · CCN 110198
- Wellstar Paulding Medical CenterHiram, GA · Acute Care Hospital · CCN 110042
Practice locations
Addresses where Ryan V. Cantwell is enrolled with Medicare (CMS data updated 2026-10-02).
- 355 Tower NerdMarietta, GA 30060
- 355 Tower Rd NE, Suite 300Marietta, GA 30060 (770) 427‑2457
- 5150 Stilesboro N W Rd, Suite 220Kennesaw, GA 30152 (770) 424‑8222
Group practices
Medicare enrollment lists Ryan V. Cantwell as a member of this group (CMS data updated 2026-10-02).
- Wellstar Medical Group LLC3,093 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Marietta
Clinicians with the same Medicare primary specialty in Marietta, GA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Morehouse School Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023007457 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians