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William Griffin, MD, Diagnostic Imaging Center
New Name, Same Great Imaging Center
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.
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.
Welcome to Mark Twain Medical Center
At Dignity Health’s Mark Twain Medical Center,
we’re here to keep you happy, healthy and whole.
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.
Treating Patients Mind, Body, and Spirit
Mark Twain Medical Center is the only cancer center in Calaveras County.
As the only cancer center in Calaveras County,
Mark Twain provides comprehensive, compassionate,
advanced diagnosis and treatment of blood and
Nobody knows when an emergency will arise,
so it’s important to know where to go for the right care.
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.
Whether your pain is caused by arthritis or
sports injuries, we are here to help you
get your life back.
At Mark Twain Medical Center, we know
that engaging in humankindness helps
you to recover, should you ever need
hospitalization or surgery.