Ellen Louise Singer, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD19574 Issued in OR

Practice address

3500 N Interstate Ave
Portland, OR 97227-1196

Phone

(503) 331-6116

NPI assigned

Aug 14, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 5

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in OR, WA, CO3 enrollments

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 3

Specialty

Internal Medicine

Education

University of Rochester School of Medicine and Dentistry, 1990

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Kaiser Foundation Health Plan of the NorthwestGroup PAC ID 5799688230, 1,805 clinicians

Orchid Oakridge Clinic PCGroup PAC ID 3476786609, 28 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ellen.singer.1@15142.direct.athenahealth.com
• Direct secure messaging: ellen.singer.1@31614.direct.athenahealth.com
• Direct secure messaging: esinger4242378@ghc.direct-ci.net

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.

• Kaiser Foundation Health Plan of the Northwest

  • General Practice Physician
  • Portland, OR
  • NPI 1184786527

  Internal Medicine, WA

  Medicare reassignment Care Compare group NPD
• Orchid Oakridge Clinic, P.C.

  dba Orchid Health - Oakridge Clinic

  • Rural Health Clinic/Center
  • Oakridge, OR
  • NPI 1588088983
  Medicare reassignment Care Compare group NPD
• Colorado Permanente Medical Group, P.C.

  dba CPMG

  • Internal Medicine Physician
  • Denver, CO
  • NPI 1760599724
  Medicare reassignment NPD
• Kaiser Foundation Health Plan of Washington

  • Multi-Specialty Clinic/Center
  • Seattle, WA
  • NPI 1396810701
  Medicare reassignment NPD
• Kaiser Foundation Health Plan of the Northwest

  • Clinic/Center
  • Hillsboro, OR
  • NPI 1942718622
  NPD
• Kaiser Foundation Health Plan of the Northwest

  • General Practice Physician
  • Portland, OR
  • NPI 1982959565

  Internal Medicine

  NPD
• Kaiser Foundation Health Plan of Washington

  dba Everett Medical Center

  • Multi-Specialty Clinic/Center
  • Everett, WA
  • NPI 1386935351
  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1155513600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768953600000",
    "number": "1689687279",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "500 NE MULTNOMAH ST STE 100",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972322031",
            "telephone_number": "503-331-6116"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3500 N INTERSTATE AVE",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972271196",
            "telephone_number": "503-331-6116"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10350 E Dakota Ave",
            "address_purpose": "LOCATION",
            "city": "Denver",
            "state": "CO",
            "postal_code": "802471314",
            "country_code": "US",
            "telephone_number": "303-338-4545",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "535 NE 6th Ave",
            "address_purpose": "LOCATION",
            "city": "Estacada",
            "state": "OR",
            "postal_code": "970239312",
            "country_code": "US",
            "telephone_number": "503-630-8550",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SINGER",
        "first_name": "ELLEN",
        "middle_name": "LOUISE",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-08-14",
        "last_updated": "2026-01-21",
        "certification_date": "2026-01-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OR",
            "license": "MD19574",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "OR",
            "license": "MD19574",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CO",
            "license": "DR.0068138",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NY",
            "license": "188201",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "188201",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepiceast.kp.org:14430/Interconnect-prodcom/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "10350 E Dakota Ave",
            "city": "Denver",
            "state": "CO",
            "country_code": "US",
            "postal_code": "802471314",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Janani Singaravelu, M.D.
• Adrienne Singer
• Brandon Singer
• Christopher Singer, B.S.
• David William Singer, MSW, LCSW
• Kaya Weinman Singer, MS
• Linnea Singer
• Madeline Louise Singer, MD
• Sydney Singer, BCBA
• Wayne L Singer, B.S.

• Internal Medicine Physician in Portland, OR
• Providers in Portland, OR by specialty
• Internal Medicine Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 21, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.