Caroline Hathaway Louttit

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

RN2352873 Issued in MA

Practice address

1611 Cambridge St
Cambridge, MA 02138-4302

Phone

(617) 657-6430

NPI assigned

Aug 23, 2022

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 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

Specialty

Nurse Practitioner

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Atrius Health IncGroup PAC ID 4789588641, 1,214 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

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 and National Provider Directory roles.

• Atrius Health, Inc.

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1871639914
  Medicare reassignment Care Compare group
• Atrius Health, Inc.

  dba Harvard Vanguard Medical Associates

  • Internal Medicine Physician
  • Beverly, MA
  • NPI 1114265634
  NPD
• Atrius Health, Inc.

  dba Harvard Vanguard Medical Associates

  • Internal Medicine Physician
  • Medford, MA
  • NPI 1447464102
  NPD

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

{
    "created_epoch": "1661212800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767830400000",
    "number": "1770202772",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1611 CAMBRIDGE ST",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021384302",
            "telephone_number": "617-657-6430"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1611 CAMBRIDGE ST",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021384302",
            "telephone_number": "617-657-6430"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LOUTTIT",
        "first_name": "CAROLINE",
        "middle_name": "HATHAWAY",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-08-23",
        "last_updated": "2026-01-08",
        "certification_date": "2026-01-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MA",
            "license": "RN2352873",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Patricia A Louijame
• Andy Louis Jean, ARNP, FNP-BC
• Shella Louis-Jeune, LPN
• Farid J Louis, M.D.
• Madeleine Lourie, MSW
• David A Lovas, M.D.
• Love and Caring Elder Services
• Abigail J Love, MD
• Anna Love
• Page Lyle Love

• Family Nurse Practitioner in Cambridge, MA
• Providers in Cambridge, MA by specialty
• Family Nurse Practitioner in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 8, 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.