NPI age
19 years
Enumerated 2006-08-20
● Active
Type 1 · Individual
MR. John Mark Stevenson SR., HAD-F
Stevenson is 1 of 16 hearing instrument specialist providers in Marietta and 1 of 328 in Georgia.
Primary specialty
Hearing Instrument Specialist
Plus 1 subspecialty
Licensed in
GA, AL
2 states
Status
Active
No deactivations on record
Last NPPES update
2022-06-01
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 328 active hearing instrument specialist providers in Georgia.
NPI age
19 years
↑ 12 yr above median (7 yr)
State licenses
2 states
Top 93% — 6% of peers are multi-state
Subspecialties
0
13% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-08Enumerated in NPPES
2006
2026
Where they practice
Practice location
145 N Marietta Pkwy, Suite E
Marietta, GA 300608023
Mailing address
145 N Marietta Pkwy, Suite E
Marietta, GA 300608023
Specialties
-
Hearing Instrument Specialist PrimaryIndividuals who test hearing for the selection, adaptation, fitting, adjusting, servicing, and sale of hearing aids. Hearing Instrument Specialist is a designation provided individuals who qualify by the National Hearing Aid Society
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (GA) | 035185274 | DL |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Solo or small practice. No other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new hearing instrument specialist 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.