NPI age
7 years
Enumerated 2019-03-31
● Active
Type 1 · Individual
John James McGlynn III, MD
McGlynn is 1 of 2 emergency medicine providers in Marietta and 1 of 20 in Georgia.
Primary specialty
Emergency Medicine
Licensed in
GA
1 state
Status
Active
No deactivations on record
Last NPPES update
2026-03-23
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 20 active emergency medicine providers in Georgia.
NPI age
7 years
↓ 7 yr below median (14 yr)
State licenses
1 state
10% of peers hold multiple states
Subspecialties
0
30% of peers hold subspecialties
NPI lifetime · 2019 → 2026
2019-03Enumerated in NPPES
2019
2026
Where they practice
Practice location
61 Whitcher St Ne Ste 2150
Marietta, GA 300601180
Mailing address
250 Chastain Rd Nw Ste 210
Kennesaw, GA 301443214
Additional practice locations
2 secondary locations on file with NPPES.
Location 2
275 Michigan St Ne
Grand Rapids, MI 495032531
Location 3
250 Chastain Rd Nw Ste 210
Kennesaw, GA 301443214
Specialties
-
Emergency Medicine PrimaryA specialist who treats decompression illness and diving accident cases and uses hyperbaric oxygen therapy to treat such conditions as carbon monoxide poisoning, gas gangrene, non-healing wounds, tissue damage from radiation and burns,...
Practice context
Solo or small practice. No other active providers share this practice address in NPPES.
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