Quick answers
- Which hospitals does John W. Martin work at?
- Medicare's official clinician data lists John W. Martin at 2 hospitals: Prisma Health Greenville Memorial Hospital and Prisma Health Oconee Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John W. Martin see patients?
- Medicare's clinician data lists 2 practice locations, including Greenwood, SC and Greenville, SC. Call before your visit to confirm the address.
- What is John W. Martin's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does John W. Martin accept Medicare assignment?
- Yes. Medicare's clinician data says John W. Martin 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 John W. Martin?
- (864) 454-5120, as listed in official Medicare / NPI Registry data.
- What is John W. Martin's NPI number?
- 1922082395. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John W. Martin works
Medicare's Facility Affiliation Data lists John W. Martin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Prisma Health Greenville Memorial HospitalGreenville, SC · Acute Care Hospital · CCN 420078
- Prisma Health Oconee Memorial HospitalSeneca, SC · Acute Care Hospital · CCN 420009
Practice locations
Addresses where John W. Martin is enrolled with Medicare (CMS data updated 2026-10-02).
- 102 Katie CtGreenwood, SC 29646 (864) 454‑5120
- 67 Creekside Park CtGreenville, SC 29615 (864) 522‑3700
Group practices
Medicare enrollment lists John W. Martin as a member of this group (CMS data updated 2026-10-02).
- Prisma Health University Medical Group2,493 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Greenwood
Clinicians with the same Medicare primary specialty in Greenwood, SC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical University Of South Carolina College Of Medicine |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1922082395 |
| 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