Quick answers
- Does James R. Girvin accept Medicare assignment?
- Yes. Medicare's clinician data says James R. Girvin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does James R. Girvin see?
- In 2024, CMS data shows 11 Original Medicare patients and 16 services for James R. Girvin. This counts Original Medicare only and measures volume, not quality.
- What is James R. Girvin's NPI number?
- 1851302079. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for James R. Girvin, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 11 |
|---|---|
| Services billed to Medicare | 16 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 53 |
Practice locations
Addresses where James R. Girvin is enrolled with Medicare (CMS data updated October 2, 2026).
- 2540 Windy Hill RdMarietta, GA 30067 (770) 644‑1570
- 2540 Windy Hill SerdMarietta, GA 30067 (770) 644‑1274
- 2550 Windy Hill Rd SE, Suite 220Marietta, GA 30067 (404) 321‑9900
- 5150 Stilesboro N W Rd, Suite 220Kennesaw, GA 30152 (770) 424‑8222
Group practices
Medicare enrollment lists James R. Girvin as a member of this group (CMS data updated October 2, 2026).
- Wellstar Medical Group LLC3,093 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Marietta
Clinicians with the same Medicare primary specialty in Marietta, GA — not a recommendation.
Other clinicians in Wellstar Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1851302079 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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