What is the emergency room wait time at Mammoth Hospital?

Patients spend a median of 117 minutes (1 hour 57 minutes) in the emergency department at Mammoth Hospital, according to CMS. This is a median over a past 12-month reporting period, not a live figure.

Does Mammoth Hospital have an emergency room?

Mammoth Hospital provides emergency services.

Where is Mammoth Hospital located?

Mammoth Hospital is at 85 Sierra Park Road PO Box 660, Mammoth Lakes, CA 93546.

What is the phone number for Mammoth Hospital?

The phone number for Mammoth Hospital is (760) 934-3311.

Mammoth Hospital

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(760) 934-3311

CountyMONO
Emergency CapableYes

Quality and performance

Centers for Medicare & Medicaid Services · data as of July 2026

Patients spend an average of 1 hour 57 minutes in the emergency department at Mammoth Hospital. That is 1 hour 6 minutes shorter than the California average of 3 hours 3 minutes.

Type Critical Access

Ownership Government

Source: CMS Hospital General Information and Timely & Effective Care. Wait times are a median over a past 12-month reporting period, not live data. Not affiliated with CMS or with Mammoth Hospital. For a medical emergency, call 911.

Compare ER waits across California · How we source this data · Something wrong on this page? Tell us

Closest other hospitals

<0.1 mi Mammoth Hospital Mammoth Lakes, CA No ER 36 mi Northern Inyo Hospital Bishop, CA 1 hr 55 min ER wait 56 mi John C Fremont Healthcare District Mariposa, CA 2 hr 4 min ER wait 63 mi Mount Grant General Hospital Hawthorne, NV No ER 68 mi Clovis Community Medical Center Clovis, CA 4 hr 2 min ER wait

All hospitals in Mammoth Lakes →

The information listed on this page will help you determine if Mammoth Hospital is the nearest hospital to your location. Address, phone number, emergency department status, bed count and CMS quality measures for Mammoth Hospital are listed above.