Individual provider Active NPI

Kelly Mastroianni, RN

  • Nurse Practitioner
  • Franklin, MA
National Provider Identifier
1437883204
Registry record updated Sep 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
RN269697 Issued in MA
Practice address
1280 W Central St Ste 101
Franklin, MA 02038-3110
Phone
(774) 462-3900
NPI assigned
Jul 15, 2022
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 3, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X RN269697 MA Primary

Addresses

Primary practice location

1280 W Central St Ste 101
Franklin, MA 02038-3110

Mailing address

9 Industrial Rd Ste 5
Milford, MA 01757-3736
Phone (508) 473-1480

Other practice location 1

68A Main St Ste 103
Medway, MA 02053-1775
Phone (508) 321-2845

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
I20231109001382 MA Practitioner - Nurse Practitioner 9436506623 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2023
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Milford Regional Physician Group, Inc.Group PAC ID 5597679449, 219 clinicians
Umass Memorial Medical Group IncGroup PAC ID 4284539891, 2,494 clinicians

Practice addresses (Care Compare)

129 S Main St
Milford, MA 01757-3290
Phone (774) 462-3339

68 A Main St
Suite 103
Medway, MA 02053-1775
Phone (508) 321-2845

Hospital & facility affiliations

  • Milford Regional Medical Center Hospital, Milford, MA, CCN 220090

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
RN269697MAMDNurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Umass Memorial Medical Group, Inc. CurrentSince Oct 1, 2025 Accepting new patients
Milford Regional Physician Group, Inc. CurrentSince Dec 11, 2023 Accepting new patients
Umass Memorial Medical Group Inc Nurse Practitioner CurrentSince Oct 1, 2025 Accepting new patients
Milford Regional Physician Group, Inc. CurrentSince Dec 11, 2023 Accepting new patients

Locations

1280 W Central St
Ste 101
Franklin, MA 02038
Phone (508) 471-1480

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

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

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

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

308 Main St
Milford, MA 01757
Phone (508) 478-0555

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

55 Lake Ave N
Worcester, MA 01655
Phone 508334100048862

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.

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": "1657843200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756857600000",
    "number": "1437883204",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9 INDUSTRIAL RD STE 5",
            "city": "MILFORD",
            "state": "MA",
            "postal_code": "017573736",
            "telephone_number": "508-473-1480"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1280 W CENTRAL ST STE 101",
            "city": "FRANKLIN",
            "state": "MA",
            "postal_code": "020383110",
            "telephone_number": "774-462-3900"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "68A Main St Ste 103",
            "address_purpose": "LOCATION",
            "city": "Medway",
            "state": "MA",
            "postal_code": "020531775",
            "country_code": "US",
            "telephone_number": "508-321-2845",
            "fax_number": "508-321-2848",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MASTROIANNI",
        "first_name": "KELLY",
        "credential": "RN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-07-15",
        "last_updated": "2025-09-03",
        "certification_date": "2025-09-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MA",
            "license": "RN269697",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Franklin, MA

Sources for this page

Verify at the official NPI Registry.