Quick answers
- Where does Mariah G. Teriet see patients?
- Medicare's clinician data lists 3 practice locations, including Marion, IL, Mount Vernon, IL and Harrisburg, IL. Call before your visit to confirm the address.
- What is Mariah G. Teriet's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mariah G. Teriet accept Medicare assignment?
- Yes. Medicare's clinician data says Mariah G. Teriet 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 Mariah G. Teriet?
- (618) 993-3817, as listed in official Medicare / NPI Registry data.
- What is Mariah G. Teriet's NPI number?
- 1275267262. 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 Mariah G. Teriet is enrolled with Medicare (CMS data updated 2026-10-02).
- 2808 E Outer DrMarion, IL 62959 (618) 993‑3817
- 602 S 42nd St, BMount Vernon, IL 62864 (618) 899‑3278
- 901 S Commercial StHarrisburg, IL 62946 (618) 993‑3817
Group practices
Medicare enrollment lists Mariah G. Teriet as a member of these groups (CMS data updated 2026-10-02).
- Southern Illinois Medical Services NFP334 clinicians in the group
- Physician Services Corporation of Southern Illinois Inc120 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Marion
Clinicians with the same Medicare primary specialty in Marion, IL — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275267262 |
| 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