NPIMap

Individual provider Active NPI

Katherine Worhach, PA-C

  • Physician Assistant
  • Boston, MA
National Provider Identifier
1275900474
Registry record updated Dec 15, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA8581 Issued in MA
Practice address
450 Brookline Ave
Boston, MA 02215-5418
Phone
(617) 632-3000
NPI assigned
Aug 24, 2015
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 15, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X PA8581 MA Primary
Physician Assistant 363A00000X

Addresses

Primary practice location

450 Brookline Ave
Boston, MA 02215-5418

Mailing address

1 Archstone Cir Unit 203
Reading, MA 01867-3792
Phone (561) 236-1035

Other identifiers 1

IdentifierTypeStateIssuer
110183856AMedicaidMA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20220422002412 MA Practitioner - Physician Assistant 0648570200 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Boston University General Surgical Associates, Inc.Group PAC ID 9830183763, 86 clinicians

Practice addresses (Care Compare)

1 Boston Medical Ctr PL
Boston, MA 02118-2908
Phone (617) 638-8605

450 Brookline Ave
Boston, MA 02215-5418
Phone (617) 632-3000

732 Harrison Ave
Boston, MA 02118-2309

732 Harrison Ave FL 3
Preston BLDG
Boston, MA 02118-2309
Phone (617) 638-7350

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Dana-Farber Cancer Institute, Inc. CurrentSince Feb 1, 2025 Accepting new patients
Boston University General Surgical Associates, Inc.-QMC CurrentSince May 30, 2022 Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Feb 1, 2025 Accepting new patients

Locations

732 Harrison Ave
Fl 5
Boston, MA 02118
Phone (617) 414-6840

732 Harrison Ave
Fl 3
Boston, MA 02118
Phone (617) 638-5350

450 Brookline Ave
Boston, MA 02215
Phone (508) 478-2061

Organizations & group practices 4

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.

Hospital & facility affiliations 9

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

NPI Registry JSON

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

{
    "created_epoch": "1440374400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765756800000",
    "number": "1275900474",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 ARCHSTONE CIR UNIT 203",
            "city": "READING",
            "state": "MA",
            "postal_code": "018673792",
            "telephone_number": "561-236-1035"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "450 BROOKLINE AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022155418",
            "telephone_number": "617-632-3000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WORHACH",
        "first_name": "KATHERINE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-08-24",
        "last_updated": "2025-12-15",
        "certification_date": "2025-12-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MA",
            "license": "PA8581",
            "primary": true
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110183856A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.