Quick answers
- Which hospitals does Jason Hennessy work at?
- Medicare's official clinician data lists Jason Hennessy at 2 hospitals: Prisma Health Greenville Memorial Hospital and Prisma Health Greer Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jason Hennessy see patients?
- Medicare's clinician data lists 6 practice locations, including Union, SC, Gaffney, SC and Spartanburg, SC. Call before your visit to confirm the address.
- What is Jason Hennessy's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Jason Hennessy accept Medicare assignment?
- Yes. Medicare's clinician data says Jason Hennessy 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 Jason Hennessy?
- (864) 582-2411, as listed in official Medicare / NPI Registry data.
- What is Jason Hennessy's NPI number?
- 1912423757. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jason Hennessy works
Medicare's Facility Affiliation Data lists Jason Hennessy 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 Greer Memorial HospitalGreer, SC · Acute Care Hospital · CCN 420033
Practice locations
Addresses where Jason Hennessy is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 115 Thomas St, Suite BUnion, SC 29379 (864) 582‑2411
- 1604 N Limestone StGaffney, SC 29340 (864) 902‑1000
- 220 College StSpartanburg, SC 29303 (864) 582‑2411
- 301 Crescent AveSpartanburg, SC 29306 (864) 582‑2817
- 460 Langdon StSpartanburg, SC 29302 (864) 504‑3628
Group practices
Medicare enrollment lists Jason Hennessy as a member of these groups (CMS data updated 2026-10-02).
- Prisma Health University Medical Group2,493 clinicians in the group
- Regenesis Organization Community Health Center36 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Union
Clinicians with the same Medicare primary specialty in Union, SC — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Medical school | University Of South Carolina School Of Medicine |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912423757 |
| 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