Individual provider Active NPI

Somasundaram Subramaniam, MD

  • Medical Oncology Physician
  • Seattle, WA
National Provider Identifier
1972766111
Registry record updated Sep 22, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
MD60460530 Issued in WA
Practice address
1221 Madison St FL 2
Seattle, WA 98104-3588
Phone
(206) 386-2323
Fax
(206) 215-6165
NPI assigned
Jul 8, 2008
Last updated
Sep 22, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 22, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 5563 HI
Medical Oncology Physician 207RX0202X MD60460530 WA Primary

Addresses

Primary practice location

1221 Madison St FL 2
Seattle, WA 98104-3588

Mailing address

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

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
I20140815002348 WA Practitioner - Hematology/OncologyPractitioner - Internal Medicine 0042437980 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hematology/OncologyAlso: Internal Medicine
Education
Other, 2004
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)

1221 Madison St
FL 2
Seattle, WA 98104-3588
Phone (206) 386-2323

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

State licenses

LicenseStateTypeSpecialty
5563HIMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Swedish Health Services CurrentSince Aug 1, 2014 Accepting new patients
Swedish Health Services Internal Medicine CurrentSince Aug 1, 2014 Accepting new patients
Swedish Health Services Past Accepting new patients

Locations

1221 Madison St
Fl 2
Seattle, WA 98104
Phone (206) 386-2323

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

800 5th Ave
Ste 600
Seattle, WA 98104

Organizations & group practices 3

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 1

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": "1215475200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758499200000",
    "number": "1972766111",
    "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": "1221 MADISON ST FL 2",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981043588",
            "telephone_number": "206-386-2323",
            "fax_number": "206-215-6165"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SUBRAMANIAM",
        "first_name": "SOMASUNDARAM",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-07-08",
        "last_updated": "2025-09-22",
        "certification_date": "2025-09-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "HI",
            "license": "5563",
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "WA",
            "license": "MD60460530",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.