Quick answers
- Where does Marian Mattern see patients?
- Medicare's clinician data lists 3 practice locations, including Youngstown, OH. Call before your visit to confirm the address.
- What is Marian Mattern's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Marian Mattern accept Medicare assignment?
- Yes. Medicare's clinician data says Marian Mattern 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 Marian Mattern?
- (330) 743-4673, as listed in official Medicare / NPI Registry data.
- What is Marian Mattern's NPI number?
- 1366799082. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Marian Mattern is enrolled with Medicare (CMS data updated 2026-10-02).
- 1319 Florencedale AveYoungstown, OH 44505 (330) 743‑4673
- 527 N Meridian RdYoungstown, OH 44509 (330) 797‑0070
- 550 W Chalmers AveYoungstown, OH 44511 (330) 797‑0070
Group practices
Medicare enrollment lists Marian Mattern as a member of these groups (CMS data updated 2026-10-02).
- Meridian Healthcare24 clinicians in the group
- H O P E Counseling and Addiction Services LLC2 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Youngstown
Clinicians with the same Medicare primary specialty in Youngstown, OH — not a recommendation.
Clinician information
| Graduation year | 2020 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366799082 |
| 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
- 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