Saint Agnes Care is pleased to welcome two new physicians who are accepting patients.

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Phillip Kim, MD, MPH


Family Medicine

Saint Agnes Care is pleased to welcome Phillip Kim, MD, MPH, to care for patients at Saint Agnes Care Center Family Medicine Physician Residency Clinic.


Dr. Kim, who specializes in Family Medicine, comes to Saint Agnes from United Health Centers in Parlier, Calif.


He completed residency training at University of California, San Francisco-Fresno Family and Community Medicine and earned a medical degree from St. George’s University in Grenada, West Indies.


“Becoming a physician has been undeniably a life changing opportunity to apply one’s knowledge onto others in a positive way,” Dr. Kim says.


During his free time, Dr. Kim enjoys mountain biking and software programming. He is fluent in English and Korean.


Saint Agnes Care Center Family Medicine Physician Residency Clinic is located at 4770 W. Herndon Ave., Suite 105, and the phone number is (559) 450-0463. To request an appointment online, click here.

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Ronald R. Castonguay, MD


Orthopaedic Surgery

Saint Agnes Care is pleased to welcome Orthopaedic Surgeon Ronald R. Castonguay, MD, to the Saint Agnes Care Orthopaedic Institute.

Dr. Castonguay is Board-certified in Orthopedic Surgery and has also earned inclusion on the Healthgrades Honor Roll. He is currently a member of the American Academy of Orthopaedic Surgery.


Dr. Castonguay earned his medical degree in 1990 from the University of Toronto Faculty of Medicine. He then completed an Orthopaedic Surgery residency at McGill University in Canada, serving as the Chief Resident at Royal Victoria Hospital, Montreal General Hospital, and Shriners Hospital for Children – Canada.


During his free time, Dr. Castonguay enjoys running, skiing, gardening, cycling and swimming. He is fluent in English and French.


Dr. Castonguay’s office is located at 7255 N. Cedar Ave., Suite 103. The phone number is (559) 431-5353. To request an appointment online, click here.