Individual provider Active NPI

Arjun Datt Law

  • Hematology & Oncology Physician
  • Seattle, WA
National Provider Identifier
1053284307
Registry record updated Sep 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
TR61667829 Issued in WA
Practice address
825 Eastlake Ave E
Seattle, WA 98109-4405
Phone
(206) 520-5000
NPI assigned
Sep 24, 2025
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 30, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Oncology Physician 207RX0202X TR61667829 WA
Internal Medicine Physician 207R00000X TR61667829 WA
Hematology & Oncology Physician 207RH0003X TR61667829 WA Primary

Addresses

Primary practice location

825 Eastlake Ave E
Seattle, WA 98109-4405

Mailing address

PO Box 50095
Seattle, WA 98145-5095

Other practice location 1

1959 NE Pacific St
Seattle, WA 98195-0001
Phone (206) 520-5000

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251015003429 WA Practitioner - Hematology/OncologyPractitioner - Internal Medicine 9830686567 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hematology/OncologyAlso: Internal Medicine
Education
Other, 2006
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
The Association of University PhysiciansGroup PAC ID 0446162697, 3,484 clinicians

Practice addresses (Care Compare)

825 Eastlake Ave E
Seattle, WA 98109-4405
Phone (206) 288-1000

Hospital & facility affiliations

  • Fred Hutchinson Cancer Center Hospital, Seattle, WA, CCN 500138
  • University of Washington Medical Ctr Hospital, Seattle, WA, CCN 500008

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
The Association of University Physicians Internal Medicine CurrentSince Aug 1, 2025 Accepting new patients

Locations

1959 NE Pacific St
Seattle, WA 98195
Phone (206) 598-4333

825 Eastlake Ave E
Seattle, WA 98109
Phone (206) 288-1000

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": "1758672000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759190400000",
    "number": "1053284307",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 50095",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981455095"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "825 EASTLAKE AVE E",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981094405",
            "telephone_number": "206-520-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1959 NE Pacific St",
            "address_purpose": "LOCATION",
            "city": "Seattle",
            "state": "WA",
            "postal_code": "981950001",
            "country_code": "US",
            "telephone_number": "206-520-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LAW",
        "first_name": "ARJUN",
        "middle_name": "DATT",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-09-24",
        "last_updated": "2025-09-30",
        "certification_date": "2025-09-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "WA",
            "license": "TR61667829",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "TR61667829",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "WA",
            "license": "TR61667829",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.