NPI age
20 years
Enumerated 2005-11-04
● Active
Type 1 · Individual
John Harold Giesler, M.D.
Giesler is 1 of 6 radiology providers in Riverdale and 1 of 220 in Georgia.
Primary specialty
Radiology
Licensed in
GA
1 state
Status
Active
No deactivations on record
Last NPPES update
2010-07-15
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 220 active radiology providers in Georgia.
NPI age
20 years
≈ at median (19 yr)
State licenses
1 state
25% of peers hold multiple states
Subspecialties
0
42% of peers hold subspecialties
NPI lifetime · 2005 → 2026
2005-11Enumerated in NPPES
2005
2026
Where they practice
Practice location
255 Professional Ct
Riverdale, GA 302742531
Mailing address
255 Professional Ct
Riverdale, GA 302742531
Specialties
-
Radiology PrimaryA radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (GA) | 920000946 | RAILROAD MEDICARE |
| 01 (GA) | 300037175 | RAILROAD MEDICARE |
| 01 (GA) | 2405450 | UNITED HEALTHCARE |
| 01 (GA) | 920000948 | RAILROAD MEDICARE |
| 05 (GA) | 00582887C | |
| 05 (GA) | 00582887B | |
| 01 (GA) | 2403450 | UNITED HEALTHCARE |
| 01 (GA) | 450638 | BC/BS GA |
| 05 (GA) | 00582887D | |
| 01 (GA) | 45062 | BC/BS GA |
| 01 (GA) | 450641 | BC/BS GA |
| 01 (GA) | 480640 | BC/BS GA |
| 01 (GA) | 920000950 | RAILROAD MEDICARE |
| 01 (GA) | 2402350 | UNITED HEALTHCARE |
Practice context
Part of a multi-provider practice. 3 other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 220 Radiology providers in Georgia?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.