(844) 274-8497

  • Patient Portal

    Sign Up or Check Into Your Patient Portal

    Dignity Health is committed to providing the tools you need to better manage your health. Log in to view your personal health records, clinical summaries, and test results, as well as instructions and education specific to your care.

    Hospital Patients

    Clinic Patients Prior to 7/23/19

    Clinic Patients After 7/23/19 

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  • Senior Meals

    Check out our helpful info guide and monthly menus: December

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  • William Griffin, MD, Diagnostic Imaging Center 

    New Name, Same Great Imaging Center

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  • Online Waiting Room

    Emergency & Urgent Care

    Rest easy. Expert emergency care is close by. Select your arrival time and wait from the comfort of your home.

    Check-in Online

  • Our Quality of Care Results

    We believe that transparency is a clear step towards providing excellent care to all those who seek it. That is why we are proud to partner with the initiatives of Hospital Quality Institute to share our quality of care data with you.

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  • Central California

    Welcome to Mark Twain Medical Center 

    At Dignity Health’s Mark Twain Medical Center,
    we’re here to keep you happy, healthy and whole. 

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  • History

    Outstanding Community Support

    Health care services were limited in Calaveras County, and residents traveled outside their communities for acute care, until Mark Twain Hospital opened in 1951.

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  • Cancer Center

    Treating Patients Mind, Body, and Spirit

    Mark Twain Medical Center is the only cancer center in Calaveras County. 

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  • Cancer Center

  • Emergency Services

  • Medical Clinics 

  • Orthopedics

  • Surgical Services

  • As the only cancer center in Calaveras County,
    Mark Twain provides comprehensive, compassionate,
    advanced diagnosis and treatment of blood and
    cancer disorders.

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  • Nobody knows when an emergency will arise,
    so it’s important to know where to go for the right care. 

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  • Each of our five community Medical Clinics
    emphasizes wellness and family medicine,
    and our clinics offer everything from
    examinations and immunizations to lab
    tests and care for minor injuries.

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  • Whether your pain is caused by arthritis or
    sports injuries, we are here to help you
    get your life back.

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  • At Mark Twain Medical Center, we know
    that engaging in humankindness helps
    you to recover, should you ever need
    hospitalization or surgery. 

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  • Cardiology

    Who Does Your Heart Beat For? 

    Take care of your heart. Take an online
    heart health risk assessment.

    Take the Assessment