Quick answers
- Which hospitals does Martin Johnson work at?
- Medicare's official clinician data lists Martin Johnson at 2 hospitals: Wellstar Kennestone Regional Medical Center and Wellstar Paulding Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Martin Johnson see patients?
- Medicare's clinician data lists 1 practice location in Marietta, GA. Call before your visit to confirm the address.
- What is Martin Johnson's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Martin Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Martin Johnson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Martin Johnson?
- (678) 741-5000, as listed in official Medicare / NPI Registry data.
- What is Martin Johnson's NPI number?
- 1306408455. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Martin Johnson works
Medicare's Facility Affiliation Data lists Martin Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Wellstar Kennestone Regional Medical CenterMarietta, GA · Acute Care Hospital · CCN 110035
- Wellstar Paulding Medical CenterHiram, GA · Acute Care Hospital · CCN 110042
Practice locations
Addresses where Martin Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 711 Canton Rd, Suite 300Marietta, GA 30060 (678) 741‑5000
Group practices
Medicare enrollment lists Martin Johnson as a member of this group (CMS data updated 2026-10-02).
- Gastrointestinal Specialist of Georgia35 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Marietta
Clinicians with the same Medicare primary specialty in Marietta, GA — not a recommendation.
Clinician information
| Medical school | Mercer University School Of Medicine |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306408455 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians