Individual provider Active NPI

Isaac B Sampson, PA

  • Medical Physician Assistant
  • Longmeadow, MA
National Provider Identifier
1861123481
Registry record updated Jun 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Physician AssistantTaxonomy code 363AM0700X
License
PA100133 Issued in MA
Practice address
21 Dwight Rd Ste 104
Longmeadow, MA 01106-1765
Phone
(413) 795-4555
Fax
(413) 794-9448
NPI assigned
Jun 23, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 2, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Physician Assistant 363AM0700X PA100133 MA Primary

Addresses

Primary practice location

21 Dwight Rd Ste 104
Longmeadow, MA 01106-1765

Mailing address

280 Chestnut St FL 2
Springfield, MA 01199-1001
Phone (413) 794-5700

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
I20231205000812 MA Practitioner - Physician Assistant 9335597194 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2023
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Baystate Medical Practices IncGroup PAC ID 5991602971, 1,350 clinicians

Practice addresses (Care Compare)

21 Dwight Rd
Suite 104
Longmeadow, MA 01106-1765
Phone (413) 794-4555

Hospital & facility affiliations

National Provider Directory

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

Organizations & group practices 1

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": "1655942400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780358400000",
    "number": "1861123481",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "280 CHESTNUT ST FL 2",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011991001",
            "telephone_number": "413-794-5700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "21 DWIGHT RD STE 104",
            "city": "LONGMEADOW",
            "state": "MA",
            "postal_code": "011061765",
            "telephone_number": "413-795-4555",
            "fax_number": "413-794-9448"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SAMPSON",
        "first_name": "ISAAC",
        "middle_name": "B",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-06-23",
        "last_updated": "2026-06-02",
        "certification_date": "2026-06-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "MA",
            "license": "PA100133",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Longmeadow, MA

Sources for this page

Verify at the official NPI Registry.