Ronald Tholow Zimmerman

It is with a heavy heart that we say, Ronald T. Zimmerman, M.D., passed away peacefully on Friday, November 28th, 2025. He passed at the Schneidmiller House, Hospice of North Idaho (Hummingbirds Meadow), in Coeur d’Alene, Idaho with his daughter, her husband, and grandson by his side.

Ronald was born to Raymond (William) Zimmerman and Audra Louise (Findlay) Zimerman on 06/20/1936 in Sacramento, CA. His only sister Sandra L. Zimmerman born 12/28/1939 predeceased Ronald in 2012.

Ronald graduated from El Camino High School in Sacramento, CA in 1954, attended Pacific Union College in Angwin, CA receiving his Bachelor of Science Degree majoring in Biology in 1959. He then attended Tulane University School of Medicine in New Orleans, LA and received his M. D. in 1964.

Ronald served in the United States Army in Vietnam from 1967-1968 as Battalion surgeon and company Commander, 2nd Battalion, 14th Infantry, 25th Infantry Division as well as the 8th Field Hospital, Ward Physician, Internal Medicine and Infectious Diseases (MASH Hospital).

Ronald worked in California at the Sacramento County Hospital, Santa Cruz County Hospital as well as the San Joaquin County General Hospital. He is fondly remembered by his patients in the Tracy area due to his private practice of many years known as Medical Associates of Tracy. He moved further North to the Lake and Mendocino County areas and practiced there specializing in Internal Medicine and Geriatrics until he went into “semi-retirement”. Ronald will be remembered for always attending medical conferences and continuing his medical education clear until his passing.

Ronald enjoyed most of all food and travel! He has traveled to Ireland, Northern Italy and Switzerland, Central Europe, went to the Galapagos Islands, New Zealand, lived and worked in Puerto Rico, has dual citizenship in Belize, but most of all seemed to love Greece.

Ronald’s daughter Erika and son James will keep ashes and grandson Andrew will spread some in the ocean off then East Coast, but most importantly and probably to his great pleasure looking down on us, his step-son Stelios will take the remainder of his ashes to be spread in Greece, a Country he greatly admired and loved traveling to.

He is survived by his close companion and dear friend Dena Fagundes/Coggins family (Tracy, CA). His daughter Vernita L. (Zimmerman) Vasquez, her husband Gabriel, and their daughter Jessi Diaz and her husband Moises and their children Cataleya and Timoteo. His daughter Zoe A. Zimmerman and her children Sonia R. Zimmerman, and Ryan E. Zimmerman and his son Brendon S.M. Zimmerman. His daughter Erika J. (Zimmerman) Beachler, her husband Robert and their son Benjamin J.E. Beachler. His son James E. Zimmerman, and his wife Holly Booth, and James’ son Andrew Zimmerman and his wife Anoma (Sudchanang) and their son Alex. His step-son Stelios Findrilakis, his wife Danijela Findrilakis, and their sons Dimitri, Maximus, and Dorian Findrilakis.