NPI age
19 years
Enumerated 2006-12-05
● Active
Type 1 · Individual
Robert A. Underwood, M.D.
Underwood is 1 of 29 surgery providers in Marietta and 1 of 1389 in Georgia.
Primary specialty
Surgery
Licensed in
GA
1 state
Status
Active
No deactivations on record
Last NPPES update
2018-11-01
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 1389 active surgery providers in Georgia.
NPI age
19 years
↑ 2 yr above median (17 yr)
State licenses
1 state
14% of peers hold multiple states
Subspecialties
0
28% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-12Enumerated in NPPES
2006
2026
Where they practice
Practice location
598 Nancy St Nw Ste 250
Marietta, GA 300601377
Mailing address
598 Nancy St Nw Ste 250
Marietta, GA 300601377
Specialties
-
Surgery PrimaryA general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (GA) | 00914999A |
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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