NPI age
19 years
Enumerated 2006-06-05
● Active
Type 1 · Individual
Michael Jeffery O'Neill, MD
O'Neill is 1 of 10 internal medicine providers in Marietta and 1 of 104 in Georgia.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
GA
1 state
Status
Active
No deactivations on record
Last NPPES update
2019-10-11
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 104 active internal medicine providers in Georgia.
NPI age
19 years
↑ 8 yr above median (11 yr)
State licenses
1 state
25% of peers hold multiple states
Subspecialties
1
In the 63% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-06Enumerated in NPPES
2006
2026
Where they practice
Practice location
677 Church St Ne
Marietta, GA 300601101
Mailing address
1365 Clifton Road
Atlanta, GA 303221064
Additional practice locations
1 secondary location on file with NPPES.
Location 2
1365 Clifton Road
Atlanta, GA 303221064
Specialties
-
Internal Medicine PrimaryAn internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team...
-
Internal MedicineA physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (GA) | 1664446-015 | CIGNA |
| 01 (GA) | 5733463 | AETNA |
| 05 (GA) | 000364339S | |
| 01 (GA) | 52025125-004 | BLUE CHOICE |
Practice context
Part of a multi-provider practice. 478 other active providers share this practice address in NPPES.
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