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Health care

We provide affordable and personalized care

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Financial

Accounts to help you save and pay for health care expenses

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  • Resources

    Find contribution limits, savings tools, calculators and eligible expenses

  • Account support

    Find contact information and frequently asked questions

Tax season resources

Get ready for HSA tax season

If you used an HSA this year, the HSA Tax Center offers general information about contributions, eligible expenses and commonly used tax forms — all in one place.

Pharmacy

We make it easy to get medications you need, when and where you need them

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  • Optum Rx

    For people with pharmacy insurance benefits through Optum Rx

  • Track orders

    Track your home delivery and specialty order

  • Pharmacy support

    Find contact information and answers to frequently asked questions

Mobile app

Optum Rx on the go

Request refills, track order status, manage billing information and much more.

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Karen Lynn Tsujimoto, MD

Please contact to confirm appointment availability

Please contact to confirm appointment availability

Specialty

Infectious Disease

Languages

English

Seeing patients at

  • Gender

    Female

    Board certifications

    American Board of Internal Medicine

    Licenses

    CA, G72609

    Employed or contracted

    Contracted

    Network Name

    Optum Care Network California

    NPI

    1174598122

    Hospital affiliations

    Providence/St. Joseph Medical Center,USC Verdugo Hills Hospital

  • Medical School

    • Hahnemann Medical College

    Residency

    • Kaiser Foundation Hospital

      Internal Medicine

      1990

    Fellowship

    • Kaiser Foundation Hospital (Los Angeles, CA)

      Infectious Disease

      1993