Individual provider Active NPI

Elizabeth Carolyn Merten, FNP-C

  • Family Nurse Practitioner
  • Milford, MA
National Provider Identifier
1538908496
Registry record updated Apr 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
RN2349324 Issued in MA
Practice address
129 S Main St
Milford, MA 01757-3290
Phone
(774) 462-3339
NPI assigned
May 21, 2024
Last updated
Apr 7, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 7, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X RN2349324 MA
Family Nurse Practitioner 363LF0000X RN2349324 MA Primary

Addresses

Primary practice location

129 S Main St
Milford, MA 01757-3290

Mailing address

PO Box 415348
Boston, MA 02241-5348
Phone (800) 225-8885

Other practice location 1

1280 W Central St Ste 101
Franklin, MA 02038-3110
Phone (774) 462-3900

Other identifiers 1

IdentifierTypeStateIssuer
110146394AMedicaidMA

Other names 1

  • Elizabeth Carolyn Hilton Former name

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
I20240720000142 MA Practitioner - Nurse Practitioner 6204372709 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Umass Memorial Medical Group IncGroup PAC ID 4284539891, 2,494 clinicians

Practice addresses (Care Compare)

1280 W Central St
Suite 101
Franklin, MA 02038-3110
Phone (774) 462-3900

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Master of Science - Nursing, Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
RN2349324MAMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Milford Regional Physician Group, Inc. CurrentSince Aug 12, 2024 Accepting new patients
Umass Memorial Medical Group Inc Nurse Practitioner CurrentSince Oct 1, 2025 Accepting new patients
Milford Regional Physician Group, Inc. CurrentSince Aug 12, 2024 Accepting new patients
Umass Memorial Medical Group, Inc. CurrentSince Oct 1, 2025 Accepting new patients

Locations

1280 W Central St
Ste 101
Franklin, MA 02038
Phone (508) 473-1480

1 Lumber St
Ste 101
Hopkinton, MA 01748
Phone (508) 625-3535

68A Main St
Ste 101
Medway, MA 02053
Phone (508) 533-6020

68A Main St
Ste 103
Medway, MA 02053
Phone (508) 321-2845

100 Medway Rd
Ste 401
Milford, MA 01757
Phone (508) 634-7338

129 S Main St
Milford, MA 01757
Phone (774) 462-3339

9 Industrial Rd
Ste 5
Milford, MA 01757
Phone (508) 473-1480

100 Commerce Dr
Northbridge, MA 01534
Phone (508) 234-6311

55 Lake Ave N
Worcester, MA 01655
Phone 508334100048862

Interoperability endpoints

  • Direct secure messaging: hilton.elizabeth.mrmc@direct.partners.masshiway.net

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

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": "1716249600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775520000000",
    "number": "1538908496",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 415348",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022415348",
            "telephone_number": "800-225-8885",
            "fax_number": "508-334-1977"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "129 S MAIN ST",
            "city": "MILFORD",
            "state": "MA",
            "postal_code": "017573290",
            "telephone_number": "774-462-3339"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1280 W Central St Ste 101",
            "address_purpose": "LOCATION",
            "city": "Franklin",
            "state": "MA",
            "postal_code": "020383110",
            "country_code": "US",
            "telephone_number": "774-462-3900",
            "fax_number": "508-440-5612",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MERTEN",
        "first_name": "ELIZABETH",
        "middle_name": "CAROLYN",
        "credential": "FNP-C",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2024-05-21",
        "last_updated": "2026-04-07",
        "certification_date": "2026-04-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MA",
            "license": "RN2349324",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MA",
            "license": "RN2349324",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110146394A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ELIZABETH",
            "last_name": "HILTON",
            "middle_name": "CAROLYN",
            "credential": "CNP",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Milford, MA

Sources for this page

Verify at the official NPI Registry.