Providing Compassionate Care Since 1984
Wallace is a Federally Qualified Health Center providing medical, dental and behavioral care to all patients in need.
Medical Providers
Stuart Currie, MD
Bio
Bio to come.
Dr. Bethany Stairs, DNP, MBA, FNP-BC
Bio
Bethany Stairs is a Certified Family Nurse Practitioner and the Medical Director at Wallace. Bethany completed her Master of Science in Nursing from UCLA in 2009, her MBA in Healthcare from OHSU in 2023 and her Doctor of Nursing Practice from Frontier Nursing University in 2024. Since becoming a nurse practitioner, Bethany has worked in a variety of primary care and urgent care settings, primarily working in community health. She is passionate about providing care to underserved communities and has focused her career on improving health equity both with patients and among her staff. When not at work or school, you can find Bethany spending time with her daughter and dreaming about their next adventure.
Nicolle Asencio, FNP
Bio
I was born and raised in Portland, OR. I enjoy providing primary care to patients with a focus on lifestyle modifications foremost. I also speak Spanish and it is rewarding to be able to give back to my community by helping break language barriers between provider and patient. Prior to Wallace I worked at Oregon Health & Science University in surgical oncology. When I am not at work, I enjoy trying new restaurants, spending time with my dog, working out, and travel.
Nací y crecí en Portland, Oregón. Disfruto brindando atención primaria a pacientes centrándome principalmente en modificaciones del estilo de vida. También hablo español y es gratificante poder contribuir a mi comunidad ayudando a romper las barreras del idioma entre el proveedor y el paciente. Antes de Wallace, trabajé en oncología quirúrgica en la Universidad de Ciencias y Salud de Oregón. Cuando no estoy en el trabajo, disfruto probar nuevos restaurantes, pasar tiempo con mi perro, hacer ejercicio y viajar.
Annie Chisholm, FNP
Bio
I graduated from University of Pennsylvania’s Family Nurse Practitioner program, then completed a residency in family practice at Yakima Valley Farm Workers clinic in Washington. I enjoy seeing patients across the lifespan one and up and am passionate about partnering with patients to help you optimize your health and wellbeing. I am currently completing a 2-year Integrative Medicine Fellowship with Dr. Andrew Weil and use a holistic approach to prevent and treat a wide variety of health issues. In my free time, you will find me being active in nature, usually exploring a new trailhead, reading or cooking!
(Annie Chisholm also speaks Spanish!)
Angela Kern, DNP
Bio
The thing that I love most about primary care is developing relationships with my patients that lead to better health. I have a varied nursing background and enjoy seeing patients of all ages. My areas of interest are heart health and musculoskeletal issues. When I am not at work, you will find me bicycling around the city, running trails, or cheering for the Portland Timbers in the North End.
Kristina Leidich, FNP
Bio
I love working with my patients to get them feeling better focusing first on lifestyle changes considering that the whole body is connected. I completed my Family Nurse Practitioner program with Frontier Nursing University in 2019 and prior to that have worked as a nurse in patient care since 2010 in a variety of settings. I am a native Oregonian and spend my free time exploring the outdoors and all the beauty that our region has to offer.
Stephanie Silleck, FNP
Bio
I grew up in Ohio and trained to become a Family Nurse Practitioner at The Ohio State University. I have additional training and experience working with children but I enjoy working with families and all age groups. My focus for your care is to improve your health through preventative care. I believe that primary care is one of the most important ways to prevent disease and enhance your overall health. In my spare time you will find me hiking, backpacking or reading.
(Stephanie also speaks Spanish)
Mary Caitlin Wells, FNP
Bio
I enjoy providing primary care to patients of all ages from newborn up. I feel it is important to take the time to get to know my patients so that we can work together as a team to meet your health goals. When I am not at work I spend time with my family and enjoy being active outside in nature and the wilderness.
Marquishia Winters, FNP
Bio
I grew up moving and living around the country, as my mother served in the U.S. Air Force.
Moving approximately every 4 years, even into adulthood, has allowed me to connect with people from all walks of life.
I had been a surgical trauma registered nurse for most of my 12 years before returning to school to earn my Masters of Nursing degree at Frontier Nursing University to become a Family Nurse Practitioner. During my graduate education, I also studied under various herbalists to become a community herbalist.
I offer preventative and chronic disease management for children and adults. I have a special interest in gender affirming care and taking care of people from historically disadvantaged groups.
I use a collaborative approach where I believe that people are experts of their own bodies, and I am here to offer guidance on how to obtain and maintain each person’s definitions of well-being. Knowing that social and political dynamics impact our health and our ability to maintain well-being, my practice is rooted in Black, 2SLGBTQ+ and fat liberation, disability justice, and Indigenous sovereignty politics.
In my free time I can be found community organizing, participating in outdoor adventures, roller skating, gardening, creating art and herbal medicine.
Marquishia Winters, FNP-BC (they/them pronouns)
Dental Providers
Britta Martinez, DMD
Bio
I grew up in the Southwest and moved to Oregon for dental school. After graduating from OHSU, I completed a one year Dental General Practice Residency in Minnesota. I returned to Portland for the trees and the beautiful summers, and enjoy working with all of the wonderful people we see at Wallace!
Mikhail Bondarew, DMD
Bio
I’m a dentist with experience in both private practice and public health. I was born and raised in Georgia and earned my undergraduate degree from the University of Georgia before going on to complete my DDS at Virginia Commonwealth University. After dental school, I completed a General Practice Residency at the Portland VA Hospital.
I spent several years in private practice before discovering my true passion for public health, which led me to my current role at Wallace. Here, I’m able to provide high-quality care to underserved communities while making a meaningful impact.
When I’m not working, I enjoy spending time with my wife and our golden retriever. I’m also passionate about rock climbing, skiing, and am currently learning Spanish to better connect with the people I serve.
Kyle Geelan, DMD
Bio
“I grew up my entire life just outside of Portland Oregon. Graduated from OHSU school of dentistry and immediately moved to Arizona for a 1 year advanced education in general dentistry residency. I stayed in Arizona one more year working as a general dentist before moving back to Oregon to be with family and began working at Wallace. In my free time I enjoy the outdoors and visiting family and friends.”
Merit Roshdy, DMD
Bio
I was born in Egypt and moved to the US when I was 11 years old. I have been in the Portland Metro area since then as I attended Portland State University for my Bachelors and Oregon Health and Science University for my Doctor of Dental Medicine degree. As a child of immigrants myself, I see the tremendous need in our community to advocate for immigrants’ health. As a dental provider, my mission is to encourage patients to put their health first, even when many life obstacles are in the way. In my spare time, you will find me spending time with my family and dog Mochi, hiking, and crocheting.
Kathy Trinh, DMD
Bio
I was born and raised in Southern California and attended UCLA for undergrad – go Bruins! I then left the sunshine and moved to Oregon to attend OHSU dental school. Following graduation, I worked in Salem for about 2 years before making the switch to Wallace! A few things that I enjoy are basketball, working out, going on foodie adventures, and traveling!
Renee Alexandre
Bio
I’ve lived in inner NE Portland Oregon almost as long as I’ve been a dental hygienist. My background is in art and I consider myself fortunate to have found the dental hygiene profession. I love working with my hands and thinking creatively. Through clinical work and teaching, I get both.
Currently, my husband and I live in a turn of the century home where we’re blessed with the never-ending opportunity to learn new construction skills.
Hobbies
I’m a curious person. My pastimes include walking around, looking at stuff, and thinking about things. I think I can make anything, given the motivation, and I like to make things when time allows.
Cecilia Bustamante
Bio
I was born and raised in the Fairview/Gresham area. I became interested in dentistry at a very young age. As a child I enjoyed going to the dentist. I was inspired to pursue dental hygiene when I learned that my parents didn’t have access to dental care growing up. In high school, I enrolled in an after-school program at OHSU dental school which further pushed me into the dental field. I graduated from dental hygiene at Mt Hood Community College. I feel privileged to serve the community and strive to provide the best care possible. My goal is for patients to lose the “fear” of coming into the dental office and feel comfortable to express their concerns in English and Spanish.
Lexi Chin
Bio
Hello, my name is Lexi. I have been with Wallace for some time now and love working here. I am an Oregonian, so I love hiking and the rain. Other interests of mine are gardening and spending time with my dog.
Stephanie Espino
Bio
I’m originally from California but grew up in Rockwood Oregon my entire life. I went to Hygiene School at Mt. Hood Community College and continued my education at Oregon Institute of Technology. I fluently speak Spanish and enjoy seeing patients from around my community. On my free time I enjoy hiking, paddle boarding, camping, rafting, and hunting.
Behavioral Health Providers
Leslie Acosta, MSW, CSWA, CHW
Bio
I was born in Mexico but raised here in Portland. I graduated from Portland State University with my Master’s in Social Work and am currently working towards my LCSW. I work with patients from all cultures and backgrounds with various issues including anxiety, depression, life transitions, grief and more. In my spare time I enjoy being in nature, traveling, journaling and watching a good movie!
Sarah Campbell, LCSW
Bio
I’m originally from California and moved to Honolulu to earn my Masters in Social Work from the University of Hawaii at Manoa. Prior to moving to Oregon, I worked as a community mental health therapist in Los Angeles, CA where I became a Licensed Clinical Social Worker. I am passionate about increasing mental health accessibility and helping patients work toward their goals. In my free time, I love hiking, cooking, crafting, and photography.
