Justin Yee Mah, AGACNP

Primary specialty

Acute Care Nurse PractitionerTaxonomy code 363LA2100X

License

CNP241763 Issued in ME

Practice address

22 Bramhall St
Portland, ME 04102-3134

Phone

(207) 662-2179

Fax

(207) 662-6326

NPI assigned

Nov 21, 2022

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jmah252613@direct.bilh.masshiway.net

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.

• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  • Surgery Physician
  • Boston, MA
  • NPI 1720037385
  Medicare reassignment NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  • Emergency Medicine Physician
  • Boston, MA
  • NPI 1316987993
  NPD

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

{
    "created_epoch": "1668988800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782259200000",
    "number": "1972212769",
    "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": "207-662-2179",
            "fax_number": "207-662-6326"
        },
        {
            "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": "207-662-2179",
            "fax_number": "207-662-6326"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "292 Den Quarry Rd",
            "address_purpose": "LOCATION",
            "city": "Lynn",
            "state": "MA",
            "postal_code": "019041323",
            "country_code": "US",
            "telephone_number": "781-484-6582",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAH",
        "first_name": "JUSTIN",
        "middle_name": "YEE",
        "credential": "AGACNP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-11-21",
        "last_updated": "2026-06-24",
        "certification_date": "2026-06-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WE0003X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Emergency",
            "state": "MA",
            "license": "RN2324372",
            "primary": false
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "ME",
            "license": "CNP241763",
            "primary": true
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "MA",
            "license": "RN2324372",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ariana Magliocco, LMSW/CC
• Ann K Magner, DO
• Elise C Magnuson, PSY.D.
• Erica Magnuson, RD
• Richard J Maguire, M.D.
• Lydia Marie Mahan, PA-S
• Keila Mayes Maher, M.D.
• Hassan Mahmoud, M.D.
• Muna Mahmoud
• Kellie Mahoney, PT, DPT

• Acute Care Nurse Practitioner in Portland, ME
• Providers in Portland, ME by specialty
• Acute Care Nurse Practitioner in Maine

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.