Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Allison Maria Gagnon, PA-C

Individual provider Surgical Physician Assistant · NPI 1275837270

Allison Maria Gagnon, PA-C is a Physician Assistant in Lewiston, Maine. Graduated from Philadelphia College of Osteopathic Medicine in 2010, 16 years ago. Practices with Mercy Hospital, a 308-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maine.

Years since qualifying
16
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
ME
In the registry since
2011
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

77 Bates St Ste 103
Lewiston, ME 04240-7637 Not confirmed with CMS for 15 years — call before visiting
Phone: (207) 777-4460
Fax: (207) 777-4466
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Physician Assistant (primary) Taxonomy 363AS0400X · Licence PA001251 (ME)

Record details

NPI number1275837270
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorYes
NPI enumeratedJanuary 5, 2011
Last updated in NPPESJanuary 5, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2010 (16 years in practice)
Group practice Mercy Hospital — 308 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients54
Services billed 105 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Mercy Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 308 clinicians in the practice; 12 are shown here.

Other providers in Lewiston