NPI age
20 years
Enumerated 2005-10-07
● Active
Type 1 · Individual
Mariann C McElwain, MD
McElwain is 1 of 9 otolaryngology providers in Gainesville and 1 of 450 in Georgia.
Primary specialty
Otolaryngology
Plus 1 subspecialty
Licensed in
GA, PA
2 states
Status
Active
No deactivations on record
Last NPPES update
2026-01-07
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 450 active otolaryngology providers in Georgia.
NPI age
20 years
≈ at median (19 yr)
State licenses
2 states
Top 87% — 12% of peers are multi-state
Subspecialties
0
30% of peers hold subspecialties
NPI lifetime · 2005 → 2026
2005-10Enumerated in NPPES
2005
2026
Where they practice
Practice location
2406 Lighthouse Manor Dr
Gainesville, GA 305017401
Mailing address
2406 Lighthouse Manor Dr
Gainesville, GA 305017401
Additional practice locations
1 secondary location on file with NPPES.
Location 2
300 Northpointe Cir
Seven Fields, PA 160467862
Specialties
-
Otolaryngology PrimaryAn otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (PA) | 01726449 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 17 other active providers share this practice address in NPPES.
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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.