Quick answers
- Which hospitals does Mark C. Mattison work at?
- Medicare's official clinician data lists Mark C. Mattison at 1 hospital: Penn Highlands Elk. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark C. Mattison see patients?
- Medicare's clinician data lists 2 practice locations, including Saint Marys, PA. Call before your visit to confirm the address.
- What is Mark C. Mattison's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Mark C. Mattison accept Medicare assignment?
- Yes. Medicare's clinician data says Mark C. Mattison 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 Mark C. Mattison?
- (814) 788-8595, as listed in official Medicare / NPI Registry data.
- What is Mark C. Mattison's NPI number?
- 1730347444. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark C. Mattison works
Medicare's Facility Affiliation Data lists Mark C. Mattison at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Penn Highlands ElkSaint Marys, PA · Critical Access Hospital · CCN 391315
Practice locations
Addresses where Mark C. Mattison is enrolled with Medicare (CMS data updated 2026-10-02).
- 763 Johnsonburg RdSaint Marys, PA 15857 (814) 788‑8595
- 765 Johnsonburg RdSaint Marys, PA 15857 (814) 781‑3435
Group practices
Medicare enrollment lists Mark C. Mattison as a member of this group (CMS data updated 2026-10-02).
- Elk Regional Health Center47 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Pennsylvania
Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730347444 |
| 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