Quick answers
- Does Marc F. Rosenn accept Medicare assignment?
- Yes. Medicare's clinician data says Marc F. Rosenn 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 Marc F. Rosenn's NPI number?
- 1184625485. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marc F. Rosenn works
Medicare's Facility Affiliation Data lists Marc F. Rosenn 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.
- St Mary Medical CenterLanghorne, PA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 390258
Practice locations
Addresses where Marc F. Rosenn is enrolled with Medicare (CMS data updated October 2, 2026).
- 1201 Langhorne Newtown RdLanghorne, PA 19047
- 1201 Langhorne Newtown Rd, St Mary Medical CenterLanghorne, PA 19047 (215) 750‑2000
Group practices
Medicare enrollment lists Marc F. Rosenn as a member of this group (CMS data updated October 2, 2026).
- Trinity Health Mid-Atlantic Medical Group334 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Langhorne
Clinicians with the same Medicare primary specialty in Langhorne, PA — not a recommendation.
Other clinicians in Trinity Health Mid-Atlantic Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1184625485 |
| 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