Quick answers
- Does Sebastien A. Nantermet accept Medicare assignment?
- Yes. Medicare's clinician data says Sebastien A. Nantermet accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Sebastien A. Nantermet's NPI number?
- 1568867679. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sebastien A. Nantermet works
Medicare's Facility Affiliation Data lists Sebastien A. Nantermet at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Riddle Memorial HospitalMedia, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390222
Practice locations
Addresses where Sebastien A. Nantermet is enrolled with Medicare (CMS data updated October 2, 2026).
- 1068 W Baltimore PikeMedia, PA 19063 (610) 566‑9400
- 1068 W Baltimore Pike, Rmh House Phys GroupMedia, PA 19063 (610) 627‑4216
- 830 Old Lancaster RdBryn Mawr, PA 19010
Group practices
Medicare enrollment lists Sebastien A. Nantermet as a member of this group (CMS data updated October 2, 2026).
- Main Line Healthcare1,184 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Media
Clinicians with the same Medicare primary specialty in Media, PA — not a recommendation.
Other clinicians in Main Line Healthcare
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568867679 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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