NPIMap

Organization Active NPI

Heather Wark MD LLC

  • Internal Medicine Physician
  • Northampton, MA
National Provider Identifier
1871015750
Registry record updated Apr 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
Legal business name
HEATHER WARK MD LLC
Practice address
548 Elm St
Northampton, MA 01060-2832
Phone
(413) 586-2832
NPI assigned
Jul 12, 2017
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Apr 30, 2026

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

Authorized official

Name
Heather Wark, MDNPI 1063422749
Title
Owner
Phone
(413) 237-4933

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207R00000X Primary

Addresses

Primary practice location

548 Elm St
Northampton, MA 01060-2832

Mailing address

145 Vernon St
Northampton, MA 01060-2818

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20171211001601 MA Part B Supplier - Clinic/Group Practice 1850659384 Receives reassigned benefits from 9 practitioners
Practice locations: Greenfield, MA; Northampton, MA

National Provider Directory

National Provider Directory

Locations

340 Montague City Rd
Turners Falls, MA 01376
Phone (413) 774-3111

Practitioners & affiliated clinicians

Practitioners 12

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

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

{
    "created_epoch": "1499817600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1777507200000",
    "number": "1871015750",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "145 VERNON ST",
            "city": "NORTHAMPTON",
            "state": "MA",
            "postal_code": "010602818"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "548 ELM ST",
            "city": "NORTHAMPTON",
            "state": "MA",
            "postal_code": "010602832",
            "telephone_number": "413-586-2832"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "HEATHER WARK MD LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2017-07-12",
        "last_updated": "2026-04-30",
        "certification_date": "2026-04-30",
        "status": "A",
        "authorized_official_last_name": "WARK",
        "authorized_official_first_name": "HEATHER",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "413-237-4933",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Northampton, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 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.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.