Esther G Chong

Primary specialty

Medical Oncology PhysicianTaxonomy code 207RX0202X

License

MD219107 Issued in OR

Practice address

3303 S Bond Ave
Portland, OR 97239-4501

Phone

(503) 494-6594

Fax

(503) 494-5385

NPI assigned

May 12, 2017

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in OR

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

Specialty

Medical Oncology

Education

Loma Linda University School of Medicine, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

University Professional Services 1,683 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ohsu Hospital and Clinics Hospital, Portland, OR, CCN 380009

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: echa81334@direct.llu.edu
• Direct secure messaging: echong178108@direct.ohsu.edu

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.

• University Professional Services

  • General Practice Physician
  • Portland, OR
  • NPI 1376709535

  OR

  Medicare reassignment Care Compare group NPD
• University Professional Services

  • Pharmacy
  • Beaverton, OR
  • NPI 1073054714
  Care Compare group NPD
• University Professional Services

  • Clinic/Center
  • Vancouver, WA
  • NPI 1881848307
  Care Compare group
• University Professional Services

  • Adult Mental Health Clinic/Center
  • Portland, OR
  • NPI 1750753687
  NPD
• University Professional Services

  • Pediatrics Physician
  • Medford, OR
  • NPI 1225282122
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Oregon Health & Science University

  • General Acute Care Hospital
  • Portland, OR
  • NPI 1609824010

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1494547200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752537600000",
    "number": "1689101396",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1400 SW 5TH AVE STE 500",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972015537",
            "telephone_number": "866-617-6855",
            "fax_number": "503-346-8015"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3303 S BOND AVE",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972394501",
            "telephone_number": "503-494-6594",
            "fax_number": "503-494-5385"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "11234 Anderson St",
            "address_purpose": "LOCATION",
            "city": "Loma Linda",
            "state": "CA",
            "postal_code": "923542804",
            "country_code": "US",
            "telephone_number": "909-558-4000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHONG",
        "first_name": "ESTHER",
        "middle_name": "G",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2017-05-12",
        "last_updated": "2025-07-15",
        "certification_date": "2025-07-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A161243",
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "OR",
            "license": "MD219107",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Vivian Meiwah Choi
• Young K Choi, M.D.
• Choices Counseling and Skills Training Center LLC
• Choices Domestic Violence Intervention Program, LLC
• Chun Khai Chong, MD
• Lanceford M Chong, MD
• Lisa Chong, PHARMD
• Esther Kim Choo, MD
• Meei Y Choong, MD
• Tucker Chopp

• All providers in Portland, OR
• Medical Oncology Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 15, 2025; 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.