
Residents
Meet our current residents enrolled in PeaceHealth's Family Medicine Residency Program.
Third Year Class of 2026

Elizabeth Callahan, MD
Dr. Callahan received her Bachelor of Sciences in Biomedical Science from Rochester Institute of Technology. Having been born and raised in Portland, she was thrilled to return to the Pacific Northwest to work in early childhood intervention before attending medical school at OHSU. She is passionate about full-spectrum family medicine and has special interests in reproductive medicine, lactation, early-childhood development, and creating person-centered care plans. In her spare time, she enjoys exploring the coast, gardening, cooking, and reading with her husband and toddler.

Sean Charczenko, DO
Dr. Sean Charczenko is originally from the PNW, he moved to Denver to attend Medical School at Rocky Vista University after graduating from Seattle Pacific University. He is excited to be home pursuing his passion for full-spectrum family medicine with additional interests in preventative medicine and digital healthcare. In his free time, Sean enjoys exploring nature, biking, reading, and spending quality time with friends and family.

Kathryn Chen, DO
Dr. Chen was born and raised in Beaverton, Oregon. She received her Bachelor of Science in Chemistry from Oregon State University and attended Rocky Vista University in Utah to study medicine. She is excited to continue her training near home, passionate about full-spectrum family medicine with special interests in preventative care and procedures. Outside of work, she enjoys spending time with family and friends, listening to music, and exploring nearby restaurants.

Michelle Chiou, MD
Dr. Chiou was born in Charlottesville, VA and lived in Taiwan and Nebraska before finally settling in Washington state. She earned a Bachelor of Science degree in Biology & Psychology at the University of Washington in Seattle and attended medical school at the Elson S Floyd College of Medicine at Washington State University. Dr. Chiou is passionate about full-spectrum family medicine, with particular interests in maternal and child health. In her free time, she enjoys baking, exploring new coffee shops, reading, going to the movies, and spending time with family and friends..

Jordan Joke, DO
Dr. Joke was born and raised in Bakersfield, CA. She earned her Bachelor of Science in Human Physiology from the University of Oregon and was a dedicated member of the Oregon Marching Band. She graduated from the College of Osteopathic Medicine of the Pacific in Lebanon, OR. During her studies at the University of Oregon, she discovered her passion for education and accessible healthcare through her various teaching opportunities and involvement with the Student Health Advisory Committee. She is interested in full spectrum family medicine and preventative medicine. In her free time, she enjoys cooking, reading, skiing, attending sporting events, and traveling.

Maria Marin, DO
Dr. Marin was born in Romania and grew up in Portland, Oregon. She received her Bachelor of Science degree in Biochemistry from the University of Oregon. She attended medical school in Southern California and is excited to return home to continue her training. Dr. Marin is passionate about preventative care with particular interest in pediatrics and integrative medicine. In her free time, she enjoys camping, horseback riding, yoga, gardening, and home fermentation.

Gavin Rodgers, DO
Dr. Rodgers was born in Grants Pass, Oregon and graduated from Oregon State University where he studied Biochemistry and Biophysics. He graduated medical school from the College of Osteopathic Medicine of the Pacific Northwest in Lebanon, Oregon. Prior to medical school, Dr. Rodgers worked as a medical scribe for two years, and as a Direct service professional for Partnerships in Community Living, an organization dedicated to providing support and advocacy for people living with developmental disabilities. He is passionate about patient education and preventative healthcare. In his free time, Dr. Rodgers enjoys cooking with loved ones, camping, and playing volleyball.

Jonathan Wallace, MD
Dr. Jonathan Wallace was raised on a farm near Eugene, Oregon, and stayed in the Pacific Norwest for medical school, graduating from Oregon Health & Science University School of Medicine in 2023. Dr. Wallace is passionate about rural full-spectrum family medicine, especially evidence-based lifestyle and preventative medicine. His passion for medicine is only matched by his love for pugs and motorcycles. When he's not zooming through hospital corridors, he can be found zooming on his Suzuki motorcycle, and he has ridden from the arctic tundra to the deserts of Baja, Mexico. He is incredibly excited to be blessed with the opportunity to practice medicine in his home of the beautiful Pacific Northwest. In his free time, he enjoys taking walks with his wife and their two pugs in different neighborhoods around Vancouver.
Second Year Class of 2027

Matthew Coleman, DO
Dr. Coleman was born and raised in Happy Valley, Oregon. He received his Bachelor of Science in biology at Whitworth University in Spokane, Washington and went on to become a research assistant at the Oregon National Primate Research Center before attending medical school at Western University of Health Sciences College of Osteopathic Medicine of the Pacific Northwest. Dr. Coleman is passionate about full spectrum family medicine, with a special interest in sports medicine. When not practicing medicine, Dr. Coleman can be found enjoying the beautiful nature of the Pacific Northwest through hiking, weightlifting in his meticulously crafted home gym, or spending quality time with his friends and family.

Theresa D’Ettorre, MD
Dr. D'Ettorre grew up in the heartland of rural Ohio. She holds a BA in Medical Anthropology and Evolutionary Biology from Case Western Reserve University in Cleveland, Ohio and is a proud AmeriCorps alumna. Dr. D’Ettorre then studied in the urban primary care pathway with a BS from Cleveland State University and received her MD from Northeast Ohio Medical University. Dr. D’Ettorre’s passion for equitable healthcare access across the whole lifespan led her to the full spectrum training of the beautiful PNW. Beyond medicine, she finds solace and joy in outdoor pursuits such as cycling, camping, and gardening, as well as supporting arts in the community!

Mary Hayes, DO
Dr. Mary Hayes was born and raised in Eagle, Idaho and received a Bachelor of Sciences in Psychology from University of Idaho. She moved to the beautiful PNW for medical school at Western University of Health Sciences COMP-NW. She has special interests in women’s health and obstetrics along with full spectrum family medicine including procedures. In her free time, she enjoys spending time with her husband, family, and friends, skiing in the winter, and spending summer days on the lake wake-surfing.

Tariq Islam, MD
Dr. Islam was originally from Brooklyn, New York, but raised in Alpharetta, Georgia. He earned his bachelor’s degree in biology at Georgia State University and attended medical school at Ross University School of Medicine. Dr. Islam is passionate about full-spectrum family and preventative medicine, with particular interest in lifestyle medicine and primary-care sports medicine. In his free time, he loves traveling the world, playing soccer, singing, performing music, and being an active member of his community. Dr. Islam is excited to be a part of the community of Vancouver, WA, and the Pacific Northwest. In his own words, “I believe home is where the heart is, and I hope to share that with my new community.”

Taryn Kawashima, DO
Dr. Kawashima was born and raised in Honolulu, Hawaii. She studied biochemistry at the University of Oregon and went to medical school at Western University in Southern California. She loves the variety in family medicine with particular interests in mental health, addiction medicine, women’s health, and procedures. In her free time, you will find her at the beach, hiking, camping, snowboarding, or trying a bunch of new hobbies with family/friends and her dog, Kangaroo.

Joshua Martwick, MD
Dr. Martwick grew up in Beaverton, Oregon and graduated from Portland State University with a Bachelor of Science in Health Sciences. He attended medical school at Oregon Health & Science University and is thrilled to continue his career at home in the Pacific Northwest. His professional interests include preventative care, full spectrum family medicine, addiction medicine, and HIV care. Outside of work he enjoys hiking, lifting, board games, playing music, and spending time with his wife, friends, and family.

Natalie Ohlde, DO
Dr. Ohlde is from Monroe Washington and received her Bachelor of Science in Biology with a minor in Biochemistry from the University of Washington - Bothell. She then completed medical school at the Western University of Health Sciences College of Osteopathic Medicine of the Pacific - Northwest in Oregon. She is passionate about full spectrum family medicine with a focus on holistic, patient-centered preventative care and procedures. She enjoys time with family and friends, travel, hiking, reading, and involvement in her local church.

Amanda Ritter, DO
Dr. Ritter grew up along US coastlines in a Navy family and completed high school in Newbury Park, CA. In 2014, she obtained her BS in Biology from West Texas A&M University. For six years, she worked in the fields of biotechnology, special education, and delivery management. In 2024, she graduated from Burrell College of Osteopathic Medicine in Las Cruces, New Mexico, where she volunteered frequently for public health initiatives. She is excited to train in full-spectrum family medicine and has interests in lifestyle medicine, working with under-served patients and public health. In her spare time, she enjoys a myriad of outdoor activities with her husband, reading and entertaining her cats and dogs.
First Year Class of 2028

Stephanie Alden, MD
Dr. Alden was born and raised in Albany, Oregon, and studied molecular biology and sociology at Goshen College in Goshen, Indiana. She returned to her home state to attend medical school at Oregon Health & Science University. Dr. Alden is passionate about the full spectrum of health care Family Medicine offers, with particular interest in women’s health and pregnancy care. Outside of medicine she enjoys cooking, trying new foods, and spending time outside. She can often be found watching the X-Files with her wife and cats.

Christina Ed, DO
Dr. Ed was born in the Netherlands but grew up and was raised in Lacey, Washington. She graduated from Gonzaga University and attended medical school at Pacific Northwest University of Health Sciences. Dr. Ed is passionate about full-spectrum family medicine, with special interests in preventative medicine, mental health, and addiction medicine. In her free time, she enjoys spending time with friends and family, exploring new cities, crafting, baking, and watching anime and true crime documentaries.

Ming Fung, DO
Dr. Fung was born and raised near Tillamook, OR. He studied biology at Colby College in Central Maine before moving back to the Pacific Northwest for medical school at Western University of Health Sciences COMP-NW, where he developed a strong interest in patient-centered full-spectrum family medicine, especially preventative medicine and procedures. In his free time, Dr. Fung enjoys spending time outdoors, hiking, skiing, fishing, foraging, or cooking up a delicious meal.

Alexander Kures, DO
Dr. Alex Kures is originally from Bellevue, Washington, and earned his Bachelor of Science from Gonzaga University. Before attending medical school at Des Moines University in Iowa, he gained valuable clinical experience working as a phlebotomist at Bloodworks Northwest, and as a parttime medical assistant. He is excited to return to the Pacific Northwest for residency, where he plans to pursue his passion for Sports Medicine and preventive care through a holistic, patientcentered approach. Outside of medicine, Dr. Kures enjoys spending time with his family and his dog, exploring the outdoors through skiing, hiking, and camping, and staying active by both playing and watching sports. He also enjoys winding down with a good board game or card game.

Paige Morris, MD
Dr. Morris is originally from sunny San Diego, CA, although she’s lived in the PNW for almost 10 years now. She earned a Bachelor of Science in Human Physiology from the University of Oregon (go ducks!). She then attended Oregon Health and Science University in Portland, OR to earn her MD, where she found her passion for the variety of family medicine and creating deep relationships with patients. Her interests within medicine include full spectrum, prenatal care, sports medicine, and geriatrics. Outside of work she enjoys exercise, cooking and baking, reading, and exploring the gorgeous PNW.

Dakota Pfister, MD
Dr. Pfister was raised in Spokane, Washington, and earned her undergraduate degree in Biology from the University of Washington in Seattle. She went on to attend medical school at Washington State University Elson S. Floyd College of Medicine. Dr. Pfister is dedicated to providing full-spectrum family medicine and has special interests in preventative care and women’s health. Outside of medicine, she enjoys exploring the outdoors, discovering new restaurants, traveling, and spending quality time with her family and friends.

Ashley Scott, MD
Dr. Scott was born and raised in Atlanta, Georgia and attended the University of Georgia (Go Dawgs!) for her undergraduate degrees in Biology and Spanish while working at an assisted living. Afterwards, she attended the Wake Forest University School of Medicine in Winston Salem, North Carolina. She is passionate about providing full spectrum family medicine in all stages of life, integrative and lifestyle medicine, and enhancing access to care for underserved populations. In her free time, she enjoys spending time with her family and pets, hiking, and various types of art.

Erick Videira-Paucar, DO
Dr. Videira was born in Lima, Peru, and grew up in Vancouver, Washington. He graduated from Washington State University Vancouver with a Bachelor of Science in Biology and volunteered for three years on the neuroscience floor of PeaceHealth SWMC, sparking his passion for medicine. He then attended Pacific Northwest University in Yakima, just a couple of hours from home. Erick is passionate about full-spectrum family medicine, preventative care, integrative medicine, and providing care to underserved communities. He enjoys playing soccer, hiking, weightlifting, and spending time with family and friends.