Individual provider Active NPI

Karen L Hopcia, NP

  • Clinical Nurse Specialist
  • Boston, MA
National Provider Identifier
1073649828
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Nurse SpecialistTaxonomy code 364S00000X
License
207132 Issued in MA
Practice address
55 Fruit St
Massachusetts General Hospital White 1332
Boston, MA 02114-2621
Phone
(617) 724-1610
Fax
(617) 725-7563
NPI assigned
Feb 26, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X 207132 MA
Occupational Health Nurse Practitioner 363LX0106X 207132 MA
Clinical Nurse Specialist 364S00000X 207132 MA Primary

Addresses

Primary practice location

55 Fruit St
Massachusetts General Hospital White 1332
Boston, MA 02114-2621

Mailing address

9 Hawthorne PL
2D
Boston, MA 02114-2344
Phone (617) 523-8224

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
207132MAMDNurse Practitioner

NPI Registry JSON

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

{
    "created_epoch": "1172448000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1073649828",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9 HAWTHORNE PL",
            "address_2": "2D",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142344",
            "telephone_number": "617-523-8224",
            "fax_number": "617-523-8224"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "address_2": "MASSACHUSETTS GENERAL HOSPITAL WHITE 1332",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142621",
            "telephone_number": "617-724-1610",
            "fax_number": "617-725-7563"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOPCIA",
        "first_name": "KAREN",
        "middle_name": "L",
        "name_prefix": "Ms.",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-02-26",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MA",
            "license": "207132",
            "primary": false
        },
        {
            "code": "363LX0106X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Occupational Health",
            "state": "MA",
            "license": "207132",
            "primary": false
        },
        {
            "code": "364S00000X",
            "taxonomy_group": "",
            "desc": "Clinical Nurse Specialist",
            "state": "MA",
            "license": "207132",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.