NPI age
19 years
Enumerated 2006-06-16
● Active
Type 1 · Individual
John G Porter, M.D.
Porter is 1 of 12 pain medicine providers in Marietta and 1 of 315 in Georgia.
Primary specialty
Pain Medicine
Plus 1 subspecialty
Licensed in
GA
1 state
Status
Active
No deactivations on record
Last NPPES update
2011-01-12
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 315 active pain medicine providers in Georgia.
NPI age
19 years
↑ 5 yr above median (14 yr)
State licenses
1 state
13% of peers hold multiple states
Subspecialties
1
In the 48% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-06Enumerated in NPPES
2006
2026
Where they practice
Practice location
790 Church St Ne, Suite 550
Marietta, GA 300607282
Mailing address
790 Church St Ne, Suite 550
Marietta, GA 300607282
Specialties
-
Pain Medicine PrimaryInterventional Pain Medicine is the discipline of medicine devoted to the diagnosis and treatment of pain and related disorders principally with the application of interventional techniques in managing subacute, chronic, persistent, and...
-
AnesthesiologyAn anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (GA) | 2147453 | CIGNA |
| 01 (GA) | 1710946322 | GROUP NPI NUMBER |
Practice context
Part of a multi-provider practice. 90 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new pain medicine provider has been added in Marietta in the last 180 days.
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- 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.