Individual provider Active NPI

Lorna Mairead McMahon, NP

  • Acute Care Nurse Practitioner
  • Newburyport, MA
National Provider Identifier
1184357667
Registry record updated Jul 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Acute Care Nurse PractitionerTaxonomy code 363LA2100X
License
RN2304350 Issued in MA
Practice address
255 Low St Ste 102
Newburyport, MA 01950-3596
Phone
(978) 463-1000
NPI assigned
Jul 2, 2022
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 17, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Neuroscience Registered Nurse 163WN0800X RN2304350 MA
Endocrinology, Diabetes & Metabolism Physician 207RE0101X RN2304350 MA
Acute Care Nurse Practitioner 363LA2100X RN2304350 MA Primary

Addresses

Primary practice location

255 Low St Ste 102
Newburyport, MA 01950-3596

Mailing address

PO Box 24529
New York, NY 10087-4529
Phone (781) 774-5810

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20250307001067 MA Practitioner - Nurse Practitioner 7315468287 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2011
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Seacoast Affiliated Group Practice IncGroup PAC ID 1658357843, 50 clinicians

Practice addresses (Care Compare)

21 Highland Ave
Newburyport, MA 01950-3873
Phone (978) 255-4217

25 Highland Ave
Newburyport, MA 01950-3867
Phone (978) 834-8074

255 Low St
Newburyport, MA 01950-3596

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Registered Nurse

State licenses

LicenseStateTypeSpecialty
RN2304350MAMDNeuroscience Registered Nurse

Practice roles

OrganizationSpecialtyStatusNew patients
Seacoast Affiliated Group Practice, Inc. CurrentSince Dec 29, 2024 Accepting new patients
River Valley Infectious Disease Specialists Inc. Past Accepting new patients

Locations

24 Morrill Pl
Amesbury, MA 01913
Phone (978) 388-5050

255 Low St
Ste 102
Newburyport, MA 01950
Phone (978) 463-1000

21 Highland Ave
Ste 5
Newburyport, MA 01950
Phone (978) 255-4217

Organizations & group practices 2

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 1

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

NPI Registry JSON

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

{
    "created_epoch": "1656720000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784246400000",
    "number": "1184357667",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 24529",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100874529",
            "telephone_number": "781-774-5810"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "255 LOW ST STE 102",
            "city": "NEWBURYPORT",
            "state": "MA",
            "postal_code": "019503596",
            "telephone_number": "978-463-1000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCMAHON",
        "first_name": "LORNA",
        "middle_name": "MAIREAD",
        "name_prefix": "Mrs.",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-07-02",
        "last_updated": "2026-07-17",
        "certification_date": "2026-07-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WN0800X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Neuroscience",
            "state": "MA",
            "license": "RN2304350",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "MA",
            "license": "RN2304350",
            "primary": false
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "MA",
            "license": "RN2304350",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Newburyport, MA

Sources for this page

Verify at the official NPI Registry.