Cascades East Family Medicine Center
2801 Daggett Avenue
Klamath Falls, OR 97601

Administration: (541) 274-4611
Clinic: (541) 274-6733



Third Year Residents

Second Year Residents




Program Director

Joyce Hollander-Rodriguez, M.D., Assistant Professor

College: Stanford University
Medical School: Oregon Health Sciences University
Residency: Cascades East Family Medicine Residency
Board Certified: Family Medicine, Palliative Medicine
Email Address:
After briefly leaving for college in California, Joyce decided to drag her husband to Oregon and vowed to never again leave. She completed medical school at OHSU and residency here at Cascades East. She and her husband loved Klamath Falls so much that they decided to stay put and she became faculty. Joyce loves to travel but finds it hard to leave her 50 sheep, 2 horses, 3 dogs, 10 chickens and family. Joyce's medical interests include geriatrics and end-of-life care, and she is frequently found harassing the residents about advanced directives and code status. She is Medical Director of a local hospice and is an active member of the hospital Ethics Committee. She especially enjoys spending time at her ranch with her family amongst their numerous animals.
Dr. Hollander-Rodriguez

Associate Director

Robert Jackman, M.D., Assistant Professor

College: University of California, Santa Cruz
Medical School: George Washington University
Residency: Cascades East Family Medicine Residency
Graduate Work: Naval Undersea Medical Institute Medical Officer and Deep Sea Diver
Board Certified: Family Medicine
Email Address:
Bob started in the Navy, doing his internship and becoming an Undersea Medical Officer and Deep Sea Diver. After four years at the Naval Submarine Medical Research Lab he decided to go inland and complete his residency at Cascades East Family Medicine. His medical interests include lots of procedures and endoscopy of almost any orifice. He enjoys camping and skiing with his wife and two rambunctious kids, and makes great barbecue and beer.
Dr. Jackman

Benjamin Baker, PA-C

College: University of Vermont
PA School: Quinnipiac Univeristy
Benjamin Baker

Darlene Breazeal, MS, LMFT

College: Southern Oregon University
Graduate School: California Baptist University
Darlene has been a Klamath Falls native since the age of five and enjoyed growing up on a hay and horse ranch in the Round Lake area. As a young adult and former Miss Klamath County, her love for violin and singing pointed her toward Ashland Oregon where she obtained her BS in Psychology from Southern Oregon University. She then relocated to Southern California and obtained her Masters in Counseling Psychology from California Baptist University. Her post graduate career work has included managing foster care group homes, and providing geriatric care management for the world class memory care company, Silverado. While climbing the corporate ladder in California she continued to long for her roots in a small rural town, especially as she was starting her own family. After 12 years away from Klamath she returned with her family in 2009 where she worked as a therapist and held leadership positions within Klamath Basin Behavioral Health. After six years of service at Klamath Basin Behavioral Health and with a license in Marriage and Family Therapy she set out to integrate her love for medicine and therapy as a behaviorist for Cascades East. On weekends and evenings you may find her highly engaged as a proud parent to her seven year old daughter and five year old son. Her husband is a Juvenile Probation officer and together they enjoy golfing, bicycling, riding motorcycles, fishing, and hiking.
Darlene Breazeal

Brandon Chase, M.D.

College: Reed College
Medical School: SUNY Upstate Medical University
Residency: Cascades East Family Medicine Residency
Board Certified: Family Medicine
Dr. Chase

Lawrence L. Cohen, M.D., Assistant Professor

College: University of California, Los Angeles
Medical School: Autonomous University of Guadalajara, Mexico
University of California, Irvine
Residency: Loma Linda University
Glendale Adventist Medical Center
Board Certified: Family Medicine
Larry is originally from Los Angeles, where he was a partner in a private group practice for 10 years. He later moved to Chiloquin, OR to work first for a federally qualified health center for four years and later a solo private practice in the same small town. Since finishing training, he has participated in post-graduate medical education as community faculty at two Residency programs. In August 2006, he became full time faculty at Cascades East.

Larry hopes to bring some of his private practice, rural family medicine "nuts and bolts" perspective to the teaching experience at Cascades East Family Medicine Residency Program. He is particularly interested in Type 2 Diabetes. His real-life interests include road cycling, cross-country skiing, hiking and camping with his wife, Cindy, and their various cats and dogs.
Dr. Cohen

Kristi Coleman, M.D.

College: New Mexico Institute of Mining and Technology
Medical School: University of Cincinnati College of Medicine
Residency: Cascades East Family Medicine Residency
Board Certified: Family Medicine
Dr. Coleman

Siobhan Cooper, M.D.

College: McGill University - Quebec, Canada
Graduate School: Univeristy of North Carolina
Medical School: University of Arkansas
Residency: Cascades East Family Medicine
Board Certified: Family Medicine
Dr. Cooper

Ralph Eccles, D.O., Assistant Professor

College: Linfield College, Brigham Young University
Medical School: College of Osteopathic Medicine of the Pacific
Residency: Grant Medical Center, Columbus, OH
Fellowships: Diabetes Fellowship at Children's Hospital, Columbus, OH
Women's Health Fellowship at Phoenix Indian Medical Center
Board Certified: Family Medicine
Email Address:
Ralph previously worked as medical director of the Navajo Health Foundation. Returning back to his Klamath Falls roots after practicing in very rural and inner city communities Ralph focuses diabetes and other endocrine issues. Ralph also actively works In Klamath County and at the state level to develop a comprehensive program to manage patients with chronic disease. He is married to another Klamath Falls native and pediatric endocrinologist. He and his wife are avid readers and enjoy a variety of outdoor activities or relaxing at their cabin.
Dr. Eccles

Rachel Fisher, PA-C

College: Life Chiropractic College West
PA School: University of Washington MEDEX
Rachel Fischer

Roberta Garvey, PA-C

College: Augustana College
PA School: Midwestern University
Roberta Garvey

Katie Heinrich, FNP

College: University of Wisconsin – Madison
FNP Training: University of Wisconsin – Eau Claire
Katie Heinrich

Radu Moisa, M.D., Assistant Professor

Medical School: University of Medicine and Pharmacy Timisora Romania
Residency: Cascades East Family Medicine Residency
Board Certified: Family Medicine
Email Address:
Dr. Moisa

Holly Montjoy, M.D.

College: East Carolina University
Medical School: Brody School of Medicine at East Carolina University
Residency: Cascades East Family Medicine Residency
Board Certified: Family Medicine
Dr. Montjoy

Grant Niskanen, M.D.

Residency: Cascades East Family Medicine Residency
Board Certified: Family Medicine

Kelly Patterson, M.D.

College: University of Oregon
Medical School: Michigan State University College of Human Medicine
Residency: Cascades East Family Medicine Residency
Board Certified: Family Medicine
Dr. Patterson

Carrie Pierce, M.D.

College: Oberlin College
Medical School: Rush Medical College
Residency: University of Illinois Chicago/Advocate Illinois Masonic Medical Center Family Medicine Residency
Fellowship: Reproductive Health and Advocacy
Carrie started her career as a scientist, researching cancers and STDs, but was inspired by the physicians she worked with to go to medical school. She feels much better suited for her current career, where she enjoys practicing the full scope of family medicine for patients of all ages, from newborns to geriatric patients. Her passion is reproductive health care—helping families plan when and whether to have children, preventing unwanted or mistimed pregnancies, and helping women and families have the healthiest pregnancies and babies possible. Of course the real of fun of family medicine is getting to watch those patients and families grow up! Carrie is also involved in resident education, helping teach the next generation of physicians to take excellent care of their patients. When she isn’t working Carrie can be seen walking her dog (a sweet beagle rescue) around Klamath Falls, at a yoga class, or baking in her kitchen.
Dr. Pierce

Michol Polson, PhD

College: Brigham Young University
Graduate School: Purdue University
Dr. Polson

Dwight Smith, M.D., Assistant Professor

College: La Sierra University
Medical School: Loma Linda University
Residency: Riverside General Hospital, Riverside CA
Fellowship: Faculty Development Fellowship, University of Washington
Board Certified: Family Medicine
Email Address:

Dwight grew up as a missionary kid in Nigeria, West Africa. After medical school, he practiced rural Family Medicine in Washington and Nevada. He was then drawn to teaching and taught in Tacoma, WA and Stockton CA, before he helped start the Alaska Family Medicine Residency Program. He spent 13 years teaching residents there before coming to Cascades East. His family, including 3 young children, was drawn to the rural farming atmosphere of Klamath Falls. In his spare time Dwight enjoys collecting rocks and minerals, nature photography, mountain biking, backpacking, cross country skiing, sea kayaking, river rafting or any other adventures in the wilderness. He also swims with the Klamath Basin Masters Swim Team.

Medically, Dr. Smith enjoys teaching procedures, wilderness medicine, obstetrics, emergency care, and rural/frontier medicine. He also appreciates the value of integrating spiritual care into his practice. He is an Advisory Faculty with ALSO. He has lectured internationally on rural health, obstetrics and ALSO.

Dr. Smith

Wendy Warren, M.D., Assistant Professor

College: Case Western Reserve
Medical School: George Washington University
Residency: Georgetown University, Providence Hospital
Board Certified: Family Medicine

Dr. Warren received her medical degree from George Washington University and completed her family practice residency at Georgetown University Providence Hospital. Dr. Warren also has her Master’s Degree in social work, which she attained at the University of Michigan prior to medical school. Wendy was in full spectrum private practice including OB at the Klamath Medical Clinic for 17 years before deciding to do locums work and then joining the residency. She works as the Public Health Officer for Klamath County and is a board member of Sky Lakes Medical Center. She oversees the maternal health portion of our curriculum. She periodically replenishes her urban needs by visiting San Francisco. In her spare time she enjoys hiking, running, traveling, and spending time with her family.

Dr. Warren

Nellie Wirsing, M.D.

College: University of Wisconsin
Medical School: University of Wisconsin - Madison
Residency: Cascades East Family Medicine Residency
Dr. Wirsing

OHSU Adjunct Faculty & Teaching Supervisors

Lindsey Burwell, MD

James F. Calvert, MD

Matthew Edmonds, MD

Dawn Jennings-Peterson, MD

Ann Kellogg, DO

Mark Kochevar, MD

James Novak, MD

Oregon Health and Science University, OHSUWhere healing, teaching, and discovery come together