Quick answers
- Which hospitals does John M. Clark work at?
- Medicare's official clinician data lists John M. Clark at 4 hospitals: Bryn Mawr Hospital, Main Line Hospital Lankenau, Paoli Hospital and Riddle Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John M. Clark see patients?
- Medicare's clinician data lists 10 practice locations, including Wynewood, PA, Glen Mills, PA and Media, PA. Call before your visit to confirm the address.
- What is John M. Clark's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Advanced Heart Failure and Transplant Cardiology.
- Does John M. Clark accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Clark 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.
- Does John M. Clark offer telehealth?
- Medicare's clinician data says John M. Clark offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John M. Clark?
- (484) 337-4097, as listed in official Medicare / NPI Registry data.
- What is John M. Clark's NPI number?
- 1831484138. 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 M. Clark works
Medicare's Facility Affiliation Data lists John M. Clark at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bryn Mawr HospitalBryn Mawr, PA · Acute Care Hospital · CCN 390139
- Main Line Hospital LankenauWynnewood, PA · Acute Care Hospital · CCN 390195
- Paoli HospitalPaoli, PA · Acute Care Hospital · CCN 390153
- Riddle Memorial HospitalMedia, PA · Acute Care Hospital · CCN 390222
Practice locations
Addresses where John M. Clark is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.
- 100 E Lancaster AveWynewood, PA 19096
- 1020 Baltimore Pike, Suite 100Glen Mills, PA 19342
- 1088 W Baltimore PikeMedia, PA 19063
- 130 S Bryn Mawr AveBryn Mawr, PA 19010
- 130 S Bryn Mawr Ave H, 321 Gvh Hospital Medical Services BrynBryn Mawr, PA 19010 (484) 337‑4097
Group practices
Medicare enrollment lists John M. Clark as a member of this group (CMS data updated 2026-10-02).
- Main Line Healthcare1,184 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Pennsylvania →
Other cardiologists in Wynewood
Clinicians with the same Medicare primary specialty in Wynewood, PA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1831484138 |
| 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