Our Health Care Providers
Diana Hall | PNP, MSN, MS, RN
Diana Hall is the medical provider at Outside In’s School Based Health Center at Milwaukie High School. She is a board-certified nurse practitioner specializing in pediatrics. She obtained her Masters of Science in Nursing from Yale University, and also earned a Masters in Science in the global health department at Unversity College London in the United Kingdom. Diana is passionate about child and adolescent medicine and is thrilled to be part of the OI SBHC team. In her free time she loves to go backpacking and travel, and has been to over 65 countries on all 7 continents. She also loves her dog who is named Harry Potter, after her favorite book.
Isabelle Trepiccione | MD
Isabelle Trepiccione was born and raised in Portland. She completed medical school at Oregon Health and Science University and moved to in Seattle in 2014 for Family Medicine residency training at Swedish-First Hill. She returned to Portland in 2018 to join the primary care team at Outside In. She loves working with her colleagues at Outside In to provide high quality, comprehensive medical care to individuals across their lifespan. Outside of medicine, she loves riding her bike, seeing live music, and talking about getting a dog.
KARLETIA LEWIS | FNP
Karletia Lewis is a Portland native, graduating from Georgetown University in August 2016 with a Master’s in Nursing and a focus on family care. She has a passion for community and has worked in several settings amongst diverse populations in healthcare for almost 15 years. She strives to be an effective agent for changing disparities and improving health in the lives of underserved populations. It is her goal to provide evidenced based care while meeting the needs of the individual across their life span.
Karlyn Nieland | ANP
Pronouns: she/her/hers or they/them/theirs
Karlyn Nieland joined the Outside In primary care team in 2015 and continues to enjoy the awesomely diverse folks she sees as patients as well as the dedicated and supportive staff.
She graduated from the Yale School of Nursing and then completed a primary care residency through the VA hospital in West Haven, Connecticut before relocating to the Pacific Northwest. She sees the human body as a resilient and amazing machine and remains curious to learn while working with people to feel their best.
Mandi Ruscher | MSN, FNP-C, CPEN
Mandi Ruscher joined Outside In in 2017 after graduating from Frontier Nursing University.She worked as a registered nurse for almost 10 years with a specialty mostly in emergency, toxicology, and pediatrics. Prior to nursing, she was an English teacher abroad. She enjoys being outdoors, baking, and having dance parties with her two daughters.
Meghan Brinson | ND
Meghan Brinson was first drawn to Outside In as a volunteer in 2007 due to her interest in community health. She has a sincere belief that all people should receive compassionate, respectful health care as a human right. Meghan Brinson graduated from the National College of Natural Medicine in 2010. After completing 2 years of residency, she joined Outside In as a primary care provider. Dr. Brinson values her work at Outside In because it enables her to provide excellent quality care to marginalized and underserved populations. Additionally, Dr. Brinson enjoys training residents and medical students in this clinical setting.
Miguel Mitchell | ND
Dr. Miguel Mitchell joined Outside In as a primary care provider in 2018. Before coming to Outside In, he graduated from the National University of Natural Medicine in 2014 and then completed three years of residency in their teaching program while also collaborating with Volunteers of America to help provide clinical care in their treatment facilities. When he isn’t at work, he can be found hiking in the woods with his wife and their two dogs or puttering around in his garage.
Nikki Kuehl | FNP
Nikki is a native Oregonian who grew up on the coast and now enjoys life in the city. She graduated from Frontier Nursing University in 2015 with a Master’s in Nursing focused on family medicine and caring for underserved populations. Nikki meets her patients where they are and believes when people feel seen and heard they start to heal. She brings a holistic approach to healthcare that encompasses body, mind, and spirit. When she’s not at work you’ll find her cuddled up with a book and her dog, Oliver.
Wayne Sells | MD, MPH, FAAP, FSAHM, Professor of Pediatrics
Wayne Sells joined Outside In as a medical provider in 1997, and served as the Medical Director until June of 2017. During this time the clinic became a Federally Qualified Health Center, established OI’s medical van program, and built school-based health centers at Milwaukie High School and Rex Putnam. Currently Wayne serves as one of two medical providers at Milwaukie High School Health & Wellness Center, and is the Associate Medical Director for School-based Health. Wayne is a pediatrician who specializes in Adolescent Medicine, and is the Head of the Division of Adolescent Health at Oregon Health Science University. He enjoys working with youth and their families. He is active in medical student and resident education. Wayne completed medical school at the Medical College of Wisconsin, pediatric residency at Stanford University, and Fellowship and MPH at the University of Minnesota. In his free time, Dr. Sells enjoys spending time with his wife and two adolescent children.
As a patient at Outside In, the dignity, compassion, and respect that I was shown by staff truly had a lasting impact on me and directly resulted in me wanting to get involved in helping my community.