NPIMap

Individual provider Active NPI

Lynn Elizabeth Mastrianni, NP

  • Gerontology Nurse Practitioner
  • Farmington, CT
National Provider Identifier
1205177672
Registry record updated Sep 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gerontology Nurse PractitionerTaxonomy code 363LG0600X
License
6560 Issued in CT
Practice address
263 Farmington Ave
Farmington, CT 06030-8040
Phone
(860) 679-2100
Fax
(860) 676-3443
NPI assigned
Mar 11, 2013
Last updated
Sep 30, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 30, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Adult Health Nurse Practitioner 363LA2200X 006560 CT
Gerontology Nurse Practitioner 363LG0600X 6560 CT Primary

Addresses

Primary practice location

263 Farmington Ave
Farmington, CT 06030-8040

Mailing address

263 Farmington Ave
Farmington, CT 06030-8082
Phone (860) 679-6694

Other practice location 1

85 Retreat Ave
Hartford, CT 06106-2555
Phone (860) 972-4183

Other names 1

  • Lynn Cochran Former name

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address lmastrianni102379@direct.med.uchc.edu Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT
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
I20161230000644 CT Practitioner - Nurse Practitioner 7315228509 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Yale UniversityGroup PAC ID 9436061736, 2,632 clinicians
Ptsma IncGroup PAC ID 7911800180, shared by 11 NPIs, 173 clinicians
Hartford HospitalGroup PAC ID 2567366016, 1,040 clinicians

Practice addresses (Care Compare)

20 York St
New Haven, CT 06510-3220
Phone (203) 785-4638

222 Post Rd
Suite E
Fairfield, CT 06824-6245
Phone (203) 255-8888

80 Fisher Dr
Avon, CT 06001-3798
Phone (860) 696-1000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
87.36 of 100Reported as group
Quality
77.36
Promoting interoperability
100
Improvement activities
40
Cost
74.27

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
6560CTMDProfessional Counselor
006560CTMDAdult Health Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Windham Community Memorial Hospital, Inc. CurrentSince Oct 1, 2025 Accepting new patients
Hartford Healthcare Medical Group Specialists, PLLC CurrentSince Jun 1, 2019 Accepting new patients
Hartford Healthcare Medical Group, Inc CurrentSince Jul 24, 2017 Accepting new patients
Hartford Pathology Associates, P.C. Current Accepting new patients
Yale University CurrentSince Nov 7, 2016 Accepting new patients
Yale University Current Accepting new patients
Hartford Healthcare Medical Group Specialists LLC CurrentSince Jun 1, 2019 Accepting new patients
Hartford Hospital CurrentSince Oct 1, 2025 Accepting new patients
The William W Backus Hospital Current Accepting new patients
Yale University CurrentSince Nov 7, 2016 Accepting new patients
The William W Backus Hospital CurrentSince Oct 1, 2025 Accepting new patients
William W Backus Hospital CurrentSince Oct 1, 2025 Accepting new patients
Hartford Hospital CurrentSince Oct 1, 2025 Accepting new patients
Oncology Associates, PC PastSince Jul 2, 2001 Accepting new patients

Locations

263 Farmington Ave
Farmington, CT 06030
Phone (860) 679-4477

455 Lewis Ave
Ste 210
Meriden, CT 06451
Phone (203) 238-1241

800 Howard Ave
New Haven, CT 06519
Phone (203) 785-2140

20 York St
North Haven, CT 06510
Phone (203) 688-2433

326 Washington St
Norwich, CT 06360
Phone (860) 701-0140

55 Meriden Ave
Ste 1D
Southington, CT 06489
Phone (860) 276-5144

1244 Storrs Rd
Storrs Mansfield, CT 06268
Phone (860) 724-2579

1290 Silas Deane Hwy
Wethersfield, CT 06109
Phone (860) 972-6977

112 Mansfield Ave
Willimantic, CT 06226
Phone (830) 423-6410

Interoperability endpoints

  • Direct secure messaging: lcochran355211@direct.ynhh.org
  • Direct secure messaging: lynnelizabeth.cochran@xdr.hhchealthdirect.org

Organizations & group practices 14

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.

View all 14

Hospital & facility affiliations 9

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": "1362960000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790726400000",
    "number": "1205177672",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "263 FARMINGTON AVE",
            "city": "FARMINGTON",
            "state": "CT",
            "postal_code": "060308082",
            "telephone_number": "860-679-6694",
            "fax_number": "860-676-3413"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "263 FARMINGTON AVE",
            "city": "FARMINGTON",
            "state": "CT",
            "postal_code": "060308040",
            "telephone_number": "860-679-2100",
            "fax_number": "860-676-3443"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "85 Retreat Ave",
            "address_purpose": "LOCATION",
            "city": "Hartford",
            "state": "CT",
            "postal_code": "061062555",
            "country_code": "US",
            "telephone_number": "860-972-4183",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MASTRIANNI",
        "first_name": "LYNN",
        "middle_name": "ELIZABETH",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-03-11",
        "last_updated": "2026-09-30",
        "certification_date": "2026-09-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "CT",
            "license": "006560",
            "primary": false
        },
        {
            "code": "363LG0600X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Gerontology",
            "state": "CT",
            "license": "6560",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "lmastrianni102379@direct.med.uchc.edu",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "263 Farmington Ave",
            "city": "Farmington",
            "state": "CT",
            "country_code": "US",
            "postal_code": "060308040",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "LYNN",
            "last_name": "COCHRAN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Farmington, CT

Sources for this page

Verify at the official NPI Registry.