Patient Reviews

Reviews reflect patients' level of satisfaction with the care they received from this provider. Dr. John Leonard xhas an overall rating of 3.8.


Dr. John Leonard, MD is a Doctor primarily located in Antioch, CA, with other offices in Sacramento, CA and Walnut Creek, CA (and 2 other locations). He has 21 years of experience. His specialties include Emergency Medicine. Dr. Leonard is affiliated with John Muir Medical Center, Walnut Creek Campus, Sutter Delta Medical Center and Walnut Creek Campus. He speaks English.


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Learn where this doctor attended medical school.

Specialties & Expertise

Dr. John Leonard has the following 1 specialty and 1 board certification.

Emergency Medicine

An emergency physician is a doctor who is an expert in handling conditions of an urgent and extremely dangerous nature. These specialists work in the emergency room (ER) departments of hospitals where they oversee cases involving cardiac distress, trauma, fractures, lacerations and other acute conditions.
Emergency physicians are specially trained to make urgent life-saving decisions to treat patients during an emergency medical crisis. These doctors diagnose and stabilize patients before they are either well enough to be discharged, or transferred to the appropriate department for long-term care.

Board Certification

See the board certifications this doctor has received. Board certifications provide confidence that this doctor meets the nationally recognized standards for education, knowledge and experience.

Locations & Directions

3901 Lone Tree Way
Antioch, CA 94509

4001 J St
Sacramento, CA 95819

1601 Ygnacio Valley Rd
Walnut Creek, CA 94598

6501 Coyle Ave
Carmichael, CA 95608

7500 Hospital Dr
Sacramento, CA 95823

Nearby Doctors

Dr. John Leonard, MD is similar to these 3 Doctors near Antioch, CA.