Individual provider Active NPI

Aaron Brooks Boothby, MD

  • Hematology & Oncology Physician
  • Seattle, WA
National Provider Identifier
1750871711
Registry record updated May 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
MD61446060 Issued in WA
Practice address
825 Eastlake Ave E
Seattle, WA 98109-4405
Phone
(206) 520-5000
NPI assigned
May 15, 2018
Last updated
May 4, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 4, 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 MD61446060 WA
Hematology & Oncology Physician 207RH0003X MD61446060 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

701 Pike St Ste 1900
Seattle, WA 98101-3932
Phone (206) 614-1200

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
I20250304003876 WA Practitioner - Hematology/OncologyPractitioner - Internal Medicine 9436493137 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hematology/OncologyAlso: Internal Medicine
Education
Other, 2018
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

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
The Association of University Physicians CurrentSince Feb 25, 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

Interoperability endpoints

  • Direct secure messaging: aaron.boothby.p1@direct.wacbd.nextgenshare.com
  • Direct secure messaging: aboothby1456218@direct.ehre.uwmedicine.org

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

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": "1526342400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777852800000",
    "number": "1750871711",
    "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": "701 Pike St Ste 1900",
            "address_purpose": "LOCATION",
            "city": "Seattle",
            "state": "WA",
            "postal_code": "981013932",
            "country_code": "US",
            "telephone_number": "206-614-1200",
            "fax_number": "206-614-1178",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BOOTHBY",
        "first_name": "AARON",
        "middle_name": "BROOKS",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2018-05-15",
        "last_updated": "2026-05-04",
        "certification_date": "2026-05-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "WA",
            "license": "MD61446060",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "WA",
            "license": "MD61446060",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.