Active NPI
Allison E. Shaffer
- Nurse Practitioner
- Portland, ME
National Provider Identifier
1821684457
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nurse Practitioner
- License
- CNP251331
- Practice address
- 17 Bishop St
Portland, ME 04103-2659 - Phone
- (207) 203-7933
- NPI assigned
- Dec 17, 2020
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Nurse Practitioner | 363L00000X | CNP251331 | ME | Primary |
| Registered Nurse | 163W00000X | RN72170 | ME |
Addresses
Primary practice location
17 Bishop St
Portland, ME 04103-2659
Mailing address
80 Mussey St
South Portland, ME 04106-2009
Phone (603) 321-3760
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in ME
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Nurse Practitioner
- Education
- Other, 2025
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
15 Grumman Rd W
Suite 1400
Bethpage, NY 11714-5029
180 Academy St
Suite 3
Presque Isle, ME 04769-3145
PO Box
Suite 95000
Philadelphia, PA 19195
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| RN72170 | ME | MD | Registered Nurse |
| CNP251331 | ME | MD | Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| St. Mary'S Regional Medical Center | Current | Accepting new patients | |
| St. Mary'S Regional Medical Center | Current | Accepting new patients | |
| St. Mary'S Regional Medical Center | Current | Accepting new patients |
Locations
93 Campus Ave
Lewiston, ME 04240
Phone (207) 755-3715
1230 Maine St
Poland, ME 04274
Phone (207) 998-4483
Organizations & group practices 4
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- General Acute Care Hospital
- Lewiston, ME
- NPI 1447226584
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Presque Isle, ME
- NPI 1487601399
-
- Urgent Care Clinic/Center
- Auburn, ME
- NPI 1407242522
-
- Skilled Nursing Facility
- Lewiston, ME
- NPI 1952306524
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1608163200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757030400000",
"number": "1821684457",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "80 MUSSEY ST",
"city": "SOUTH PORTLAND",
"state": "ME",
"postal_code": "041062009",
"telephone_number": "603-321-3760"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "17 BISHOP ST",
"city": "PORTLAND",
"state": "ME",
"postal_code": "041032659",
"telephone_number": "207-203-7933"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SHAFFER",
"first_name": "ALLISON",
"middle_name": "E.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-12-17",
"last_updated": "2025-09-05",
"certification_date": "2025-09-05",
"status": "A"
},
"taxonomies": [
{
"code": "363L00000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner",
"state": "ME",
"license": "CNP251331",
"primary": true
},
{
"code": "163W00000X",
"taxonomy_group": "",
"desc": "Registered Nurse",
"state": "ME",
"license": "RN72170",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Portland, ME
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 5, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.