NPIMap

Individual provider Active NPI

Ahmad Nader Kassem

  • Medical Oncology Physician
  • Methuen, MA
National Provider Identifier
1952805004
Registry record updated May 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
1022062 Issued in MA
Practice address
5 Branch St Ste 100
Methuen, MA 01844-1979
Phone
(978) 620-2020
NPI assigned
Mar 22, 2018
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 20, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology (Internal Medicine) Physician 207RH0000X 1022062 MA
Medical Oncology Physician 207RX0202X 1022062 MA Primary

Addresses

Primary practice location

5 Branch St Ste 100
Methuen, MA 01844-1979

Mailing address

5 Branch St Ste 100
Methuen, MA 01844-1979
Phone (978) 620-2020

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in VA, MA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20240105004090 VA Practitioner - Internal Medicine 7517214794 Reassigns benefits to 1 organization
I20250805000107 MA Practitioner - Medical OncologyPractitioner - Hematology 7517214794 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Medical OncologyAlso: Hematology
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Dana-Farber Cancer Institute, Inc.Group PAC ID 9133038904, shared by 5 NPIs, 671 clinicians

Practice addresses (Care Compare)

5 Branch St
FL 3
Methuen, MA 01844-1964
Phone (617) 632-3586

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
81.6 of 100Reported as group
Quality
76.36
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Dana-Farber Cancer Institute, Inc. Medical Oncology CurrentSince Aug 1, 2025 Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Aug 1, 2025 Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Aug 1, 2025 Accepting new patients
Emergency Medicine Associates P.a., P.C. Internal Medicine CurrentSince Oct 10, 2023 Accepting new patients
Emergency Medicine Associates, P.a.,P.C. Internal Medicine CurrentSince Oct 10, 2023 Accepting new patients
Dana-Farber Cancer Institute, Inc. Past Accepting new patients

Locations

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

5 Branch St
Ste 100
Methuen, MA 01844
Phone (978) 382-2410

5 Branch St
Fl 3
Methuen, MA 01844

5 Branch St
Methuen, MA 01844
Phone (617) 632-3586

15225 Heathcote Blvd
Haymarket, VA 20169
Phone (571) 284-1000

8260 Atlee Rd
Mechanicsvlle, VA 23116
Phone (804) 264-6000

200 Medical Park Blvd
Petersburg, VA 23805
Phone (804) 765-5000

Interoperability endpoints

  • Direct secure messaging: kassem.ahmad.dfci@direct.partners.masshiway.net

Organizations & group practices 6

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 4

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": "1521676800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779235200000",
    "number": "1952805004",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5 BRANCH ST STE 100",
            "city": "METHUEN",
            "state": "MA",
            "postal_code": "018441979",
            "telephone_number": "978-620-2020"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5 BRANCH ST STE 100",
            "city": "METHUEN",
            "state": "MA",
            "postal_code": "018441979",
            "telephone_number": "978-620-2020"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KASSEM",
        "first_name": "AHMAD",
        "middle_name": "NADER",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2018-03-22",
        "last_updated": "2026-05-20",
        "certification_date": "2026-05-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "MA",
            "license": "1022062",
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MA",
            "license": "1022062",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Methuen, MA

Sources for this page

Verify at the official NPI Registry.