Quick answers
- Which hospitals does John E. Fassler work at?
- Medicare's official clinician data lists John E. Fassler at 1 hospital: Piedmont Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John E. Fassler see patients?
- Medicare's clinician data lists 2 practice locations, including Charlotte, NC and Rock Hill, SC. Call before your visit to confirm the address.
- What is John E. Fassler's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does John E. Fassler accept Medicare assignment?
- Yes. Medicare's clinician data says John E. Fassler 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 E. Fassler?
- (803) 329-2636, as listed in official Medicare / NPI Registry data.
- What is John E. Fassler's NPI number?
- 1891798757. 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 E. Fassler works
Medicare's Facility Affiliation Data lists John E. Fassler at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Piedmont Medical CenterRock Hill, SC · Acute Care Hospital · CCN 420002
Practice locations
Addresses where John E. Fassler is enrolled with Medicare (CMS data updated 2026-10-02).
- 10628 Park Rd, Carolinas Medical Center PinevilleCharlotte, NC 28210 (803) 329‑2636
- 1436 Riverchase BlvdRock Hill, SC 29732 (803) 329‑2636
Group practices
Medicare enrollment lists John E. Fassler as a member of this group (CMS data updated 2026-10-02).
- Nephrology Associates PA11 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Charlotte
Clinicians with the same Medicare primary specialty in Charlotte, NC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ohio State University College Of Medicine |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891798757 |
| 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