NPIMap

Individual provider Active NPI

Tanya A Wahl, M.D.

  • Medical Oncology Physician
  • Issaquah, WA
National Provider Identifier
1326052671
Registry record updated Jul 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
MD00039965 Issued in WA
Practice address
751 NE Blakely Dr Ste 2030
Issaquah, WA 98029-6201
Phone
(425) 313-4200
Fax
(425) 313-4201
NPI assigned
Jul 29, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 7, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Oncology Physician 207RX0202X MD00039965 WA Primary

Addresses

Primary practice location

751 NE Blakely Dr Ste 2030
Issaquah, WA 98029-6201

Mailing address

PO Box 25608
Salt Lake City, UT 84125-0608
Phone (206) 320-4476

Other practice location 1

1117 Spring St
Friday Harbor, WA 98250-9782
Phone (360) 378-1738

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20100219000336 WA Practitioner - Medical Oncology 3072695535 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Medical Oncology
Education
Duke University School of Medicine, 1997
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Swedish Health ServicesGroup PAC ID 0244138196, 1,038 clinicians

Practice addresses (Care Compare)

747 Broadway
Seattle, WA 98122-4379
Phone (206) 386-6000

751 NE Blakely Dr
Issaquah, WA 98029-6201

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
87.1 of 100Reported as group
Quality
84.53
Promoting interoperability
100
Improvement activities
40
Cost
72.46

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Swedish Health Services Hematology & Oncology CurrentSince Aug 1, 2011 Accepting new patients
Swedish Health Services Past Accepting new patients
Overlake Internal Medicine Associates Inc., PS Past Accepting new patients
Overlake Internal Medicine Laboratory PastSince Jul 25, 2019 Accepting new patients
Overlake Internal Medicine Associates Inc PS Past Accepting new patients

Locations

751 NE Blakely Dr
Ste 1090
Issaquah, WA 98029
Phone (206) 386-2552

751 NE Blakely Dr
Ste 2030
Issaquah, WA 98029
Phone (425) 313-4141

747 Broadway
Seattle, WA 98122
Phone (360) 658-2488

600 University St
Ste 1200
Seattle, WA 98101
Phone (206) 320-2568

Interoperability endpoints

  • Direct secure messaging: twahl1043542@wm.providencedirect.org

Organizations & group practices 5

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 8

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": "1154131200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783382400000",
    "number": "1326052671",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 25608",
            "city": "SALT LAKE CITY",
            "state": "UT",
            "postal_code": "841250608",
            "telephone_number": "206-320-4476",
            "fax_number": "206-568-7043"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "751 NE BLAKELY DR STE 2030",
            "city": "ISSAQUAH",
            "state": "WA",
            "postal_code": "980296201",
            "telephone_number": "425-313-4200",
            "fax_number": "425-313-4201"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1117 Spring St",
            "address_purpose": "LOCATION",
            "city": "Friday Harbor",
            "state": "WA",
            "postal_code": "982509782",
            "country_code": "US",
            "telephone_number": "360-378-1738",
            "fax_number": "360-378-1784",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WAHL",
        "first_name": "TANYA",
        "middle_name": "A",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-07-29",
        "last_updated": "2026-07-07",
        "certification_date": "2026-07-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "WA",
            "license": "MD00039965",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Issaquah, WA

Sources for this page

Verify at the official NPI Registry.