Untitled Document
Untitled Document
Meet Your Doctors

Mathew Benjamin, M.D.
Dr. Benjamin is a highly-trained board certified Internal Medicine physician
and has been practicing medicine for over 10 years. Dr. Benjamin has additional training in Pulmonology and Emergency Medicine. He is the Medical Director of our Apache Junction location and has been with us for over 8 years. He completed his residency in Chicago, Illinois and worked for the State of Arizona as well as an in-patient hospitalist for a few years before joining Vista Medical Group. Dr. Benjamin thoroughly enjoys being a physician and in his spare time, enjoys music and playing the drums.

Usma Ahmad, M.D.
Dr. Usma Ahmad is a Board Certified Internal Medicine Primary Care physician. She was born and raised in California at Davis. She then went to medical school and graduated Suma Cum Laude from King Edward Medical College. She completed her Internal Medicine recidency at St. Elizabeth's hospital, a TUFT's affiliated hospital in Boston, Massachussetts. She resides in Phoenix, Arizona with her husband, who is also a physician specializing in Urology, and their three daughters. They love to travel, watch movies and spend time as a family. She has a passion for helping underserved populations which she has done through her educational and professional careers. She has helped in various free health clinics and implemented health policy reforms at the state/government level overseas.

Jerry Quigley, PA-C
Born in Wyandotte, Michigan, Jerry graduated from Theodore Roosevelt Secondary School High School then moved to Toronto, Ontario, Canada. Once he achieved his Degree in Nursing, Jerry has worked in Canada and throughout the US. Prior to working in the East Valley (past 12 years) he graduated from University of North Dakota as a Physician Assistant. Additionally, Jerry is a licensed Physician Assistant in Canada and has worked as a PA in Psychiatry at Chatham Kent Health Alliance in Ontario, Canada. He adds: “I enjoy being at home with my wife and kids; and I’m also an avid boater.”

Untitled Document