The California Dept. of Public Health along with the Center for Disease Control require masks to be worn in ALL health care facilities. COVID is a respiratory virus; as such all staff, patients and visitors must adhere to this directive at all Riverside Medical Clinic locations. ANYONE who refuses to comply will be asked to leave the facility. Many patients treated at clinics such as RMC have health issues that put them at a higher risk. This mask policy is designed to protect all our patients.

Grace Kumamoto, MD

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Grace Kumamoto, MD

Office Information:

Moreno Valley
6405 Day St.
Riverside, CA 92507
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Call:   (951) 697-5473
Office Hours: 8:30a-5:30p, Mon-Fri

Languages Spoken:

English, Japanese


Family Medicine 


Riverside General Hospital University Medical Center

Riverside General Hospital University Medical Center

Medical School:
Loma Linda University

Under Grad:
Licensure: California State Medical License; Drug Enforcement Administration; Physician Assistant Supervisor License Loma Linda University; Loma Linda, CA - 1988 (B.S.)

Boards & Associations

Board Certified - Family Practice 1998
Riverside Medical Clinic