Quick answers
- Which hospitals does John C. Weiss work at?
- Medicare's official clinician data lists John C. Weiss at 3 hospitals: Grady Memorial Hospital, Grant Medical Center and Riverside Methodist Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John C. Weiss see patients?
- Medicare's clinician data lists 6 practice locations, including Powell, OH, Columbus, OH and Westerville, OH. Call before your visit to confirm the address.
- What is John C. Weiss's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John C. Weiss accept Medicare assignment?
- Yes. Medicare's clinician data says John C. Weiss 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 C. Weiss?
- (614) 898-1211, as listed in official Medicare / NPI Registry data.
- What is John C. Weiss's NPI number?
- 1215021084. 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 C. Weiss works
Medicare's Facility Affiliation Data lists John C. Weiss at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Grady Memorial HospitalDelaware, OH · Acute Care Hospital · CCN 360210
- Grant Medical CenterColumbus, OH · Acute Care Hospital · CCN 360017
- Riverside Methodist HospitalColumbus, OH · Acute Care Hospital · CCN 360006
Practice locations
Addresses where John C. Weiss is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 120 E Olentangy StPowell, OH 43065 (614) 898‑1211
- 4885 Olentangy River RdColumbus, OH 43214 (614) 326‑5665
- 4895 Olentangy River RdColumbus, OH 43214
- 625 Africa RdWesterville, OH 43082
- 655 Africa RdWesterville, OH 43082
Group practices
Medicare enrollment lists John C. Weiss as a member of this group (CMS data updated 2026-10-02).
- Central Ohio Primary Care Physicians, Inc.488 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Ohio
Clinicians with the same Medicare primary specialty in Ohio — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Cincinnati College Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215021084 |
| 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