Oscar Zambrano , MD

Male Internal Medicine

Health Plans

  • Aetna

    Plan Type: Commercial

    Member Services: 1-800-756-7039

    Region Code
    Select 1 619462
    St. Francis 2 451193
    Downey 3 581935

  • Alignment Health Plan

    Plan Type: Medicare Advantage

    Member Services: 1-866-634-2247

    Region Code
    Select 1 ACSA100049

  • Anthem Blue Cross

    Plan Type: Commercial, Medicare Advantage

    Member Services: 1-800-627-8797

    Region Code
    Select 1 1CN621
    Downey 3 05572989
    Whitter 4 05572991

  • Blue Shield

    Plan Type: Commercial

    Member Services: 1-800-393-6130

    Region Code
    Select 1 100007264013
    St. Francis 2 100007264012
    Downey 3 100007264011

  • Blue Shield 65+

    Plan Type: Medicare Advantage

    Member Services: 1-800-776-4466

    Region Code
    Select 1 100007264013
    St. Francis 2 100007264012
    Downey 3 100007264011

  • Blue Shield 65+ Choice

    Plan Type: Medicare Advantage

    Member Services: 1-800-776-4466

    Region Code
    Select 1 100007264013
    St. Francis 2 100007264012
    Downey 3 100007264011

  • Blue Shield Promise Health Plan

    Plan Type: Cal MediConnect

    Member Services: 1-800-544-0088

  • Cigna

    Plan Type: Commercial

    Member Services: 1-800-244-6224

    Region Code
    Select 1 6542599020
    St. Francis 2 6542599021
    Downey 3 6542599019

  • Health Net

    Plan Type: Cal MediConnect, Commercial, Medicare Advantage

    Member Services: 1-800-522-0088

    Region Code
    Select 1 3200019008
    St. Francis 2 2892019008
    Downey 3 3027019008

  • Health Net Salud HMO y Mas

    Plan Type: Commercial

    Member Services: 1-800-522-0088

  • Humana

    Plan Type: Medicare Advantage

    Member Services: 1-800-457-4708

    Region Code
    Select 1 358132
    Downey 3 358130

  • LA Care Health Plan

    Plan Type: Cal MediConnect, Exchange, Medi-Cal

    Member Services: 1-888-452-2273

    Region Code
    Select 1 A29529W6
    St. Francis 2 A29529Z7

  • SCAN

    Plan Type: Medicare Advantage

    Member Services: 1-800-559-3500

    Region Code
    Select 1 0795-26366

  • UnitedHealthcare

    Plan Type: Commercial, Medicare Advantage

    Member Services: 1-866-633-2446

    Region Code
    Select 1 0253270729
    St. Francis 2 0146920497
    Downey 3 0159670646

  • WellCare

    Plan Type: Medicare Advantage

    Member Services: 1-866-999-3945

    Region Code
    Select 1 ACLA3211384712
    St. Francis 2 ACSF3231384712
    Downey 3 ACD3201384712
  • 1 Select Region – Select region is a catch all for the rest of Los Angeles County and all Orange County areas. We recommend these IDs for Members who live outside of the Downey, St Francis, or Whittier region areas.
  • 2 St. Francis Region – A provider network built around our partner hospital, St Francis Medical Center, for better care coordination to members living in Lynwood and the surrounding cities.
  • 3 Downey Region – A provider network built around our partner hospital, PIH Health – Downey, for better care coordination to members living in Downey and the surrounding cities.
  • 4 Whittier Region – A provider network built around our partner hospital, Whittier Hospital Medical Center, for better care coordination to members living in Whittier and the surrounding cities.
Additional languages spoken: Spanish
School: Universidad Nacional Mayor de San Marcos De Lima
Internship: Berkshire Medical Center
Residency: Berkshire Medical Center, Lemuel Shattuck Hospital

Call to make an appointment

1-323-581-1649

Call Optum Care Network member services

1-800-460-5051, TTY 711
Monday – Friday, 8:00 am to 5:00 pm

  • 1 Select Region – Select region is a catch all for the rest of Los Angeles County and all Orange County areas. We recommend these IDs for Members who live outside of the Downey, St Francis, or Whittier region areas.
  • 2 St. Francis Region – A provider network built around our partner hospital, St Francis Medical Center, for better care coordination to members living in Lynwood and the surrounding cities.
  • 3 Downey Region – A provider network built around our partner hospital, PIH Health – Downey, for better care coordination to members living in Downey and the surrounding cities.
  • 4 Whittier Region – A provider network built around our partner hospital, Whittier Hospital Medical Center, for better care coordination to members living in Whittier and the surrounding cities.
  • 6513 Atlantic Ave Bell, CA 90201, Get Directions
    Phone: 1-323-581-1649
    MON: 7:00AM - 3:00PM
    TUE: 8:45AM - 4:00PM
    WED: 8:00AM - 12:00PM
    THU: 8:45AM - 4:00PM
    FRI: 8:00AM - 12:00PM
Additional languages spoken: Spanish
School: Universidad Nacional Mayor de San Marcos De Lima
Internship: Berkshire Medical Center
Residency: Berkshire Medical Center, Lemuel Shattuck Hospital

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