Caroline Grace Mahn

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

RN2322044 Issued in MA

Practice address

5 Neponset St
Worcester, MA 01606-2714

Phone

(508) 595-2300

Fax

(508) 853-5226

NPI assigned

Sep 2, 2021

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 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, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Reliant Medical Group IncGroup PAC ID 5597755322, 638 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Vincent Hospital Hospital, Worcester, MA, CCN 220176

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/FIBBCD

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.

• Reliant Medical Group, Inc

  • Family Medicine Physician
  • Worcester, MA
  • NPI 1720017528
  Medicare reassignment Care Compare group NPD
• Acton Medical Associates, PC

  • Internal Medicine Physician
  • Acton, MA
  • NPI 1447365408
  Medicare reassignment NPD
• Reliant Medical Group, Inc

  • Physical Therapist
  • Worcester, MA
  • NPI 1295827962
  NPD (past)

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

• VHS Acquisition Subsidiary Number 7 Inc

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1538131214
  Care Compare affiliation

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

{
    "created_epoch": "1630540800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748908800000",
    "number": "1932877065",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5 NEPONSET ST FL CENTER12",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016062714",
            "telephone_number": "508-852-0600"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5 NEPONSET ST",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016062714",
            "telephone_number": "508-595-2300",
            "fax_number": "508-853-5226"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAHN",
        "first_name": "CAROLINE",
        "middle_name": "GRACE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-09-02",
        "last_updated": "2025-06-03",
        "certification_date": "2025-06-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "MA",
            "license": "RN2322044",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MA",
            "license": "RN2322044",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jody Maher, M.ED.
• Abiramy Maheswaran, M.D.
• Bassel H Mahmoud, M.D., PH.D.
• Mohamed Mahmoud, M.D.
• Zaina Mahmoud
• Amy Mahoney, ANP-BC
• Chelsey Mahoney
• Eleanor Mahoney, PA-C
• Erica Mahoney
• Payton E Mahoney, MS, RD

• Nurse Practitioner in Worcester, MA
• Providers in Worcester, MA by specialty
• Nurse Practitioner in Massachusetts

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