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Emergency Department

The Emergency Department at Mammoth Hospital is open 24-hours; seven days a week for anyone needing immediate medical attention. We welcome walk-in visits; no appointment is needed.

Our modern facility is supported by

  • first-rate equipment
  • a seven-bed triage area
  • a decontamination room
  • a two-bay trauma resuscitation suite
  • nine private examination rooms

Our specially-trained emergency staff are ready to provide acute medical care to visitors and residents alike. 

Adjacent to the Emergency Department is Mammoth Hospital’s Imaging Department with digital X-ray, fluoroscopy, diagnostic ultrasound, multi-detector CT scan, and MRI. Additional support is provided by the hospital’s Respiratory Department, in-patient Pharmacy, and Laboratory with blood bank. 

Emergency patients needing further care can be admitted to the Med/Surg unit, ICU, Labor & Delivery ward, or operating room. Should any patient’s medical needs exceed the resources of Mammoth Hospital, we will arrange for transport to a larger medical center.

Summit Award for Patient Care

Award Winning Patient Care

Mammoth Hospital's Emergency Department has been recognized with the Summit Award for the third time in three years for advancing the quality of health care in the community of Mammoth Lakes by achieving and sustaining excellence in patient satisfaction.

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Comments from some of our May 2015 Emergency Department patients:

"This was the best ER experience I have ever had!  Someone greeted us and brought out a wheelchair for me and even helped me into it. There was zero wait and once I was in the room I saw the doctor within about 20 mins!"

"The nursing & doctor staff couldn't have been more efficient. They saved my daughter's life."

"Everyone was very professional & helpful."

"I hardly had a chance to sit down in the waiting room before I was called back."


"I appreciated that the doctor listened to me and was so quick to help."

"Top notch attention."

"My nurse was energetic, helpful, and kind."

"The nurses were excellent – keeping us very informed."

"My nurse was terrific as well as the whole staff."

"Very attentive."

"All of the nurses were wonderful and very helpful!"

"Excellent experience."

"They got me in and out and made my experience as easy as possible."

"All employees were extremely kind & caring!"

"We were so impressed! ... The staff could not have been more efficient and caring!"

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