Quick answers
- Which hospitals does Matthew S. Chouinard work at?
- Medicare's official clinician data lists Matthew S. Chouinard at 2 hospitals: Portsmouth Regional Hospital and York Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew S. Chouinard see patients?
- Medicare's clinician data lists 2 practice locations, including Portsmouth, NH and Kittery, ME. Call before your visit to confirm the address.
- What is Matthew S. Chouinard's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Matthew S. Chouinard accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew S. Chouinard 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 Matthew S. Chouinard?
- (207) 475-0100, as listed in official Medicare / NPI Registry data.
- What is Matthew S. Chouinard's NPI number?
- 1790474237. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew S. Chouinard works
Medicare's Facility Affiliation Data lists Matthew S. Chouinard at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Portsmouth Regional HospitalPortsmouth, NH · Acute Care Hospital · CCN 300029
- York HospitalYork, ME · Acute Care Hospital · CCN 200020
Practice locations
Addresses where Matthew S. Chouinard is enrolled with Medicare (CMS data updated 2026-10-02).
- 14 Manchester Sq, Suite 210Portsmouth, NH 03801 (207) 475‑0100
- 35 Walker StKittery, ME 03904 (207) 351‑3525
Group practices
Medicare enrollment lists Matthew S. Chouinard as a member of this group (CMS data updated 2026-10-02).
- Family Ear, Nose and Throat, LLC12 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Portsmouth
Clinicians with the same Medicare primary specialty in Portsmouth, NH — not a recommendation.
Clinician information
| Graduation year | 2023 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790474237 |
| 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