Quick answers
- Which hospitals does Allysia Guy work at?
- Medicare's official clinician data lists Allysia Guy at 5 hospitals: Catholic Medical Center, Central Maine Medical Center, Frisbie Memorial Hospital, Maine General Medical Center and Portsmouth Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Allysia Guy see patients?
- Medicare's clinician data lists 3 practice locations, including Derry, NH, Bridgton, ME and Lewiston, ME. Call before your visit to confirm the address.
- What is Allysia Guy's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Allysia Guy accept Medicare assignment?
- Yes. Medicare's clinician data says Allysia Guy 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 Allysia Guy?
- (603) 432-1500, as listed in official Medicare / NPI Registry data.
- What is Allysia Guy's NPI number?
- 1669619326. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Allysia Guy works
Medicare's Facility Affiliation Data lists Allysia Guy at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Catholic Medical CenterManchester, NH · Acute Care Hospital · CCN 300034
- Central Maine Medical CenterLewiston, ME · Acute Care Hospital · CCN 200024
- Frisbie Memorial HospitalRochester, NH · Acute Care Hospital · CCN 300014
- Maine General Medical CenterAugusta, ME · Acute Care Hospital · CCN 200039
- Portsmouth Regional HospitalPortsmouth, NH · Acute Care Hospital · CCN 300029
Practice locations
Addresses where Allysia Guy is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Parkland DrDerry, NH 03038 (603) 432‑1500
- 10 Hospital DrBridgton, ME 04009 (207) 795‑5709
- 300 Main StLewiston, ME 04240 (207) 795‑5646
Group practices
Medicare enrollment lists Allysia Guy as a member of these groups (CMS data updated 2026-10-02).
- Bluewater Emergency Partners of Brunswick, LLC154 clinicians in the group
- Emergency Medicine Services of NH, LLC67 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Derry
Clinicians with the same Medicare primary specialty in Derry, NH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669619326 |
| 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