Karen Janet Terwilliger, MS, APRN, AGPCNP-BC

Primary specialty

Gerontology Nurse PractitionerTaxonomy code 363LG0600X

License

6220 Issued in CT

Practice address

3 Heron Rd
Mystic, CT 06355-3253

Phone

(401) 497-6799

NPI assigned

Aug 7, 2015

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

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

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Quality

100

Improvement activities

40

Cost

66.98

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Science

Practice roles

Locations

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.

• Integrated Wound Care Connecticut PLLC

  • General Practice Physician
  • Southport, CT
  • NPI 1649778762
  Medicare reassignment NPD

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

{
    "created_epoch": "1438905600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780358400000",
    "number": "1245616705",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "23 OLD VOLUNTOWN RD",
            "city": "GRISWOLD",
            "state": "CT",
            "postal_code": "063518828",
            "telephone_number": "401-497-6799"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3 HERON RD",
            "city": "MYSTIC",
            "state": "CT",
            "postal_code": "063553253",
            "telephone_number": "401-497-6799"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "112 Mansfield Ave",
            "address_purpose": "LOCATION",
            "city": "Willimantic",
            "state": "CT",
            "postal_code": "062262045",
            "country_code": "US",
            "telephone_number": "860-456-6965",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "111 Salem Tpke",
            "address_purpose": "LOCATION",
            "city": "Norwich",
            "state": "CT",
            "postal_code": "063607403",
            "country_code": "US",
            "telephone_number": "860-425-8700",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TERWILLIGER",
        "first_name": "KAREN",
        "middle_name": "JANET",
        "name_prefix": "Mrs.",
        "credential": "MS, APRN, AGPCNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-08-07",
        "last_updated": "2026-06-02",
        "certification_date": "2026-06-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LG0600X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Gerontology",
            "state": "CT",
            "license": "6220",
            "primary": true
        },
        {
            "code": "363LP2300X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Primary Care",
            "state": "CT",
            "license": "6220",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Carl Swanson II, PHARMD, RPH
• Pracheta Talati, DPT
• Beth Tannatt, DPT
• Christina Taylor, COTA/L
• Susanne G Taylor, LMFT
• Thriving Lives, LLC
• David L Tinklepaugh, MD
• Total Vision-Eye Health Center, LLC
• Ann Traeger-Spees, PT
• Tree of Life Therapy LLC

• Gerontology Nurse Practitioner in Mystic, CT
• Providers in Mystic, CT by specialty
• Gerontology Nurse Practitioner in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 2, 2026; 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.