NPIMap

Individual provider Active NPI

Allyson Judith McFadden, PA

  • Surgical Physician Assistant
  • Portland, ME
National Provider Identifier
1184399933
Registry record updated May 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgical Physician AssistantTaxonomy code 363AS0400X
License
PA2419 Issued in ME
Practice address
22 Bramhall St
Portland, ME 04102-3134
Phone
(207) 662-2934
Fax
(207) 662-6389
NPI assigned
Aug 13, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 6, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgical Physician Assistant 363AS0400X PA2419 ME Primary
Physician Assistant 363A00000X PA2419 ME

Addresses

Primary practice location

22 Bramhall St
Portland, ME 04102-3134

Mailing address

22 Bramhall St
Portland, ME 04102-3134
Phone (207) 662-2934

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ME
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20221006001682 ME Practitioner - Physician Assistant 0648656116 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
MainehealthGroup PAC ID 7517860588, 2,616 clinicians

Practice addresses (Care Compare)

22 Bramhall St
Portland, ME 04102-3134
Phone (207) 885-9905

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
84.1 of 100Reported as group
Quality
64.8
Promoting interoperability
96
Improvement activities
40
Cost
68.87

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PA2419MEMDSurgical Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Mainehealth CurrentSince Jul 21, 2025 Accepting new patients
Eastern Maine Medical Center CurrentSince Sep 25, 2022 Accepting new patients
Mainehealth Physician Assistant CurrentSince Jul 21, 2025 Accepting new patients
Mainehealth Past Accepting new patients

Locations

417 State St
Ste 340
Bangor, ME 04401
Phone (207) 973-4949

489 State St
Bangor, ME 04401
Phone (207) 973-8837

22 Bramhall St
Portland, ME 04102
Phone (207) 662-2179

Interoperability endpoints

  • Direct secure messaging: ajarvis915691@direct.mmc.mainehealth.org

Organizations & group practices 5

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.

Hospital & facility affiliations 36

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 36

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1628812800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778025600000",
    "number": "1184399933",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "22 BRAMHALL ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041023134",
            "telephone_number": "207-662-2934",
            "fax_number": "207-662-6389"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22 BRAMHALL ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041023134",
            "telephone_number": "207-662-2934",
            "fax_number": "207-662-6389"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCFADDEN",
        "first_name": "ALLYSON",
        "middle_name": "JUDITH",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-08-13",
        "last_updated": "2026-05-06",
        "certification_date": "2026-05-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "ME",
            "license": "PA2419",
            "primary": true
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "ME",
            "license": "PA2419",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portland, ME

Sources for this page

Verify at the official NPI Registry.