Quick answers
- Does Elissa I. Tremblay accept Medicare assignment?
- Yes. Medicare's clinician data says Elissa I. Tremblay 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 Elissa I. Tremblay's NPI number?
- 1659941615. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Elissa I. Tremblay works
Medicare's Facility Affiliation Data lists Elissa I. Tremblay 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.
- MaineHealth Waldo HospitalBelfast, ME · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 201312
Practice locations
Addresses where Elissa I. Tremblay is enrolled with Medicare (CMS data updated October 2, 2026).
- 119 Northport Ave Fl, 1 Wcmp Primary CareBelfast, ME 04915 (207) 930‑6708
- 22 Bramhall StPortland, ME 04102
Group practices
Medicare enrollment lists Elissa I. Tremblay as a member of this group (CMS data updated October 2, 2026).
- MaineHealth2,633 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Belfast
Clinicians with the same Medicare primary specialty in Belfast, ME — not a recommendation.
Other clinicians in MaineHealth
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2021 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659941615 |
| 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