Individual provider Active NPI

William Grant Parker, PA-C

  • Physician Assistant
  • Boston, MA
National Provider Identifier
1932989696
Registry record updated Nov 21, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA101771 Issued in MA
Practice address
179 Longwood Ave
Boston, MA 02115-5804
Phone
(617) 732-2850
NPI assigned
Oct 2, 2023
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 21, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X PA101771 MA Primary

Addresses

Primary practice location

179 Longwood Ave
Boston, MA 02115-5804

Mailing address

179 Longwood Ave
Boston, MA 02115-5804
Phone (617) 732-2850

Other names 1

  • Grant Parker Other name

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20251119001480 MA Practitioner - Physician Assistant 6901397744 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Berkshire Faculty Services IncGroup PAC ID 8224068424, 276 clinicians

Practice addresses (Care Compare)

55 Pittsfield Rd
Suite 12C
Lenox, MA 01240-2185
Phone (413) 881-5473

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
PA101771MAMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Berkshire Faculty Services Inc CurrentSince Nov 3, 2025 Accepting new patients
Fairview Hospital CurrentSince Nov 3, 2025 Accepting new patients

Locations

780 S Main St
Ste 2
Gt Barrington, MA 01230
Phone (413) 447-2498

55 Pittsfield Rd
Ste 12C
Lenox, MA 01240
Phone (413) 344-1750

Organizations & group practices 2

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 3

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": "1696204800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763683200000",
    "number": "1932989696",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "179 LONGWOOD AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021155804",
            "telephone_number": "617-732-2850"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "179 LONGWOOD AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021155804",
            "telephone_number": "617-732-2850"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PARKER",
        "first_name": "WILLIAM",
        "middle_name": "GRANT",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-10-02",
        "last_updated": "2025-11-21",
        "certification_date": "2025-11-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MA",
            "license": "PA101771",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "GRANT",
            "last_name": "PARKER",
            "credential": "PA-C",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.