Karyn Ann Guilmain, APRN

Primary specialty

Adult Health Nurse PractitionerTaxonomy code 363LA2200X

License

12.016421 Issued in CT

Practice address

945 Main St Ste 102
Manchester, CT 06040-6036

Phone

(860) 643-0319

NPI assigned

Jan 30, 2026

Last updated

Jan 30, 2026By 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, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Heritage Internal Medicine Associates LLCGroup PAC ID 2365528791, 6 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Manchester Memorial Hospital Hospital, Manchester, CT, CCN 070027

Medicare enrollment (NPD)

Enrolled

State licenses

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

• Heritage Internal Medicine Associates LLC

  • Internal Medicine Physician
  • Manchester, CT
  • NPI 1609051044
  Medicare reassignment Care Compare group NPD

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

• Manchester Memorial Hospital, Inc.

  • General Acute Care Hospital
  • Manchester, CT
  • NPI 1881564664
  Care Compare affiliation

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

{
    "created_epoch": "1769731200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769731200000",
    "number": "1285584276",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "75 PARK RD",
            "city": "BARKHAMSTED",
            "state": "CT",
            "postal_code": "060634119",
            "telephone_number": "860-212-2947"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "945 MAIN ST STE 102",
            "city": "MANCHESTER",
            "state": "CT",
            "postal_code": "060406036",
            "telephone_number": "860-643-0319"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GUILMAIN",
        "first_name": "KARYN",
        "middle_name": "ANN",
        "name_prefix": "Ms.",
        "credential": "APRN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-01-30",
        "last_updated": "2026-01-30",
        "certification_date": "2026-01-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "CT",
            "license": "12.016421",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Peter J Gruca, PA-C
• Ladylanis Del Carmen Grullon Cepeda, LPC
• Joseph J Guardino II, MD
• Kaitlyn Marie Guardino, M.D.
• Michael Guibord, LPCC
• Mary G Guinan, CNM
• William Guinan, MD
• Legacy R Guinyard
• David Michael Gulash, OTR/L
• Carla Rae Gunn, M.D.

• Adult Health Nurse Practitioner in Manchester, CT
• Providers in Manchester, CT by specialty
• Adult Health Nurse Practitioner in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 30, 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.