Alyssa Ann Duperry, APRN

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

10017 Issued in CT

Practice address

154 Main St
Old Saybrook, CT 06475-2373

Phone

(860) 358-5120

NPI assigned

Oct 26, 2021

Last updated

Nov 3, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CT

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

Specialty

Nurse Practitioner

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

MHS Primary Care, Inc.Group PAC ID 4082507371, 180 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Middlesex Health Care at Home and Hospice Program Home health agency, Middletown, CT, CCN 077086
• Middlesex Hospital Hospital, Middletown, CT, CCN 070020

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: amansfield10253@middlesexhealthprd.direct-ci.com

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.

• MHS Primary Care, Inc

  • Family Medicine Physician
  • Middletown, CT
  • NPI 1336279058
  Medicare reassignment Care Compare group NPD
• MHS Primary Care Inc

  dba Middlesex Health Concierge Medicine

  • Internal Medicine Physician
  • Essex, CT
  • NPI 1750276655
  NPD

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

• Middlesex Hospital

  dba Middlesex Hospital Homecare

  • Home Health Agency
  • Middletown, CT
  • NPI 1194781328
  Care Compare affiliation Name & address match
• Middlesex Hospital

  • General Acute Care Hospital
  • Middletown, CT
  • NPI 1760454334
  Care Compare affiliation

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

{
    "created_epoch": "1635206400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762128000000",
    "number": "1245994284",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "154 MAIN ST",
            "city": "OLD SAYBROOK",
            "state": "CT",
            "postal_code": "064752373",
            "telephone_number": "860-358-5120"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "154 MAIN ST",
            "city": "OLD SAYBROOK",
            "state": "CT",
            "postal_code": "064752373",
            "telephone_number": "860-358-5120"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUPERRY",
        "first_name": "ALYSSA",
        "middle_name": "ANN",
        "credential": "APRN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-10-26",
        "last_updated": "2025-11-03",
        "certification_date": "2025-11-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CT",
            "license": "10017",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Randi B Diemand, LCSW
• Donna Olivieri LCSW
• Lauren Larusso Drago, LMHC, LPC
• Douglas Dufore, PHD
• Michael William Dunne, MD
• East Coast Anesthesia (Armen Ketchedjian, MD)
• Robert Ladd Edmonstone, DDS
• Matthew E Elgart, OD
• Monya D Elgart, OD
• Larisa Ellis, DDS

• Family Nurse Practitioner in Old Saybrook, CT
• Providers in Old Saybrook, CT by specialty
• Family Nurse Practitioner in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 3, 2025; 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.