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2019-2020 OPSO Board of Directors



Eric Sharp, DO is a 2009 graduate of Western University, College of Osteopathic Medicine of the Pacific in Pomona, CA. He entered the inaugural family residency class at Samaritan Health Services in Corvallis. Since residency, Dr. Sharp has been an active member with OPSO, serving on the education committee and participating in various didactic programs. Dr. Sharp joined the OPSO Board in 2013. 


He has served as Chief of Family Medicine, Medical Staff at Good Samaritan Regional Medical Center in Corvallis and is currently works as a Medical Executive with Samaritan. In his practice, Dr. Sharp has a strong interest in wellness, preventive care and physical medicine, Dr. Sharp enjoys working with patients of all ages to help them optimize their health.

Prior to attending medical school, Dr. Sharp spent 12 years in the United States Air Force in the fields of law enforcement and medical laboratory.

Eric Sharp, DO



Dr. Gutierrez is a dynamic and inspirational speaker who has presented for healthcare professionals, New Thought Churches, and educational groups in the western US. He is the author of several books on health: Three Steps to Superior Health and L.O.V.E.S. The Answer. He currently resides in Eugene, OR where he has a private practice in Family Medicine and Integrative Holistic Medicine. He is the current President of the Osteopathic Physicians and Surgeons of Oregon and Regional Assistant Dean for Pacific Northwest University of Health Sciences. He is passionate about teaching and is a Clinical Assistant Professor of Family Medicine at both Western University and PNWU.

Dr. Gutierrez completed training at the renowned Mayo Clinic for 3 years after completing active duty in the United States Navy during the Iraq War. As a Family Medicine Resident at Mayo Clinic Florida, he presented original research on exceptional longevity and nutrition internationally. The Florida Academy of Family Physicians awarded him its Distinguished Scholar Award in 2009.

Dr. Gutierrez graduated from the Philadelphia College of Osteopathic Medicine in 2003 with honors. While studying osteopathic medicine, he instructed a weekly yoga class for students, faculty, and staff. His undergraduate degree in 1999, is Magna Cum Laude with a double major in Philosophy and Biology from Florida International University.

Dr. Gutierrez shares a holistic lifestyle with his wife and their three children. His healthy habits include a plant-based diet, daily meditation and yoga, and participating in his spiritual community. His family has been Unity members for 13 years and his wife is currently President of the Board of Unity of the Valley. He is a competitive runner and All American track athlete. As a Cuban refugee who came to America on the Mariel boatlift, he is the first in his family to attend college and truly enjoys connecting with people from all walks of life.

Orestes Gutierrez, DO



Dr. Worden received her certification in Functional Medicine through the Institute for Functional Medicine in 2016. She is board certified in Family Medicine by the American Board of Osteopathic Family Physicians, and is a Diplomate of the American Board of Integrative Medicine. She is licensed to practice medicine in the state of Oregon.


After completing her medical training in California and returning to the Northwest, she launched her medical practice in 2007 at Creekside Family Practice, practicing integrative family medicine for 10 years. Eager to focus on Functional Medicine, Dr. Worden started Bloom Functional Medicine in 2018. Functional medicine is a practice that involves an in-depth understanding of the origin, prevention and treatment of complex chronic diseases.


As a mother of two young boys, Dr. Worden has first-hand experience with the challenges many families face. She understands it can be difficult to provide healthy food for the whole family, while finding time for self-care and maintaining a healthy work-life balance. In her free time, Dr. Worden loves to spend time with family and friends, reading, skiing, kayaking, hiking, cooking and traveling.


 Cyndi Worden, DO


Michael Jaczko, DO, chose primary care because he liked the idea of treating the whole family and to build long-term relationships. "To truly help someone, you must get to know their values and ideas," he says. "This can only be accomplished in a longitudinal specialty like family medicine."

In his practice Dr. Jaczko emphasizes preventive care, patient choice and disease education. "As a doctor I must educate patients well enough to make informative decisions about their health care," he says. "I consider myself a teacher."

Dr. Jaczko received a Bachelor of Science degree in Biology from Rider University in Lawrenceville, New Jersey. He earned his medical degree from Philadelphia College of Osteopathic Medicine and completed his internship and residency with Eastmoreland Hospital in Portland, Oregon. He has a special interest in sports medicine and training in wound care.

Mike Jaczko, DO


The longest serving board member for OPSO, John Shonerd, DO has been a leader in the profession for over 30 years and has served twice as the OPSO president.


Dr. Shonerd is the recipient of various distinguished awards recognizing his long-time commitment to the profession. He received the OPSO DO of the Year award in 1999. John Shonerd, DO was recognized with the J. Scott Heatherington Lifetime Achievement Award from the Foundation in 2004.

Dr. Shonerd received his medical degree at Michigan State University College of Osteopathic Medicine, in East Lansing, MI. He is an associate professor of Family Medicine at Western University College of Osteopathic Medicine, Touro University College of Osteopathic Medicine in California, and A.T. Still University, in Arizona. He recently retired from practice where he served as Director of the Department of Medicine at Rogue Valley Medical Center.


Furthering his commitment to the profession, Dr. Shonerd is organizing the a 2020 OPSO Road Show, to host various town hall socials throughout the state. If you are interested in a town hall social in your community, please let us know.

John Shonerd, DO


Bryan Walls, DO is a native Oregonian who was born in Portland. He received his undergraduate degree from the University of Oregon. He then headed to Western University of Health Sciences in Pomona, CA where he received his medical degree. Dr. Walls completed his osteopathic internship and residency in Portland at Eastmoreland Hospital.


He has served on the OPSO Board of Directors as well as the Oregon Osteopathic Foundation in a variety of roles, and is the current Board Member Designee for the American Academy of Family Physicians.


Dr. Walls has a private practice family medicine clinic in Portland, OR, where he provides care to males and females of all ages. His special interests include sports medicine, auto and work injuries, and osteopathic manipulative medicine.              

Bryan Walls, DO
ACOFP Representative

 Justin Brohard DO is an orthopedic surgery resident at Good Samaritan Regional Medical Center in Corvallis, OR. He attended medical school at Western University of Health Sciences in Pomona, CA. While in medical school, he spent an additional year as a teaching fellow in the Osteopathic Manipulative Medicine department at WesternU.


Prior to this he resided in Illinois and completed his bachelors at Millikin University. In his free time he enjoys cycling, hiking, camping, and spending time with his family and pets. He plans to complete a fellowship in orthopedic foot and ankle surgery after graduation from residency in 2021


 Justin Brohard, DO

Resident Rep

Student doctor Hernandez has served as president of the OPSO Council of Medical Students where he helped lead and organize several events including extracurricular educational events at COMP-Northwest, student meetings at OPSO conferences, advocacy days, and organization of the outreach for the Tools of The Trade program – the medical bags that are given to COMP-Northwest students at the white coat ceremony through the generous contribution of community donors.

At COMP-Northwest, he has been a teaching assistant for the anatomy osteopathic manipulative medicine courses where he helped students inside and outside of required lab times. Through this work, he helped organize and grade mock practical exams and held review sessions and workshops.

Student doctor Hernandez was awarded with the 2019 OPSO Honors Award.

Christopher Hernandez, OMS III

Student Rep


Dr. Schulz grew up in Oregon, spending time in the Mt. Hood wilderness and central Oregon, before getting his degree from Univ. of Oregon. He went to medical school at Midwestern University in Glendale, AZ and received numerous scholarships including, NW Osteopathic Foundation Award, John Shonerd Student Leadership Award, and Midwestern's award for Excellence in Family Medicine.


Dr. Schulz knew early on that family medicine was the specialty he best fit into. He takes great pride in keeping all the family in excellent health, from newborns to grandparents. He completed his residency at Univ. of Minnesota Medical Center, and was awarded the STFM Resident Teacher Award for teaching residents and medical students. Dr. Schulz is an active preceptor and can often be found training medical students at his practice. He is a clinical assistant professor at Oregon Health and Sciences University.


He enjoys spending time with his wife and son and exploring Oregon. He has great interest in world travel, especially to Croatia to visit family. Dr. Schulz has published multiple pieces in Minnesota Medicine Magazine and won a physician writing contest in 2014.

Sean Schulz, DO


While Howard Graitzer, DO is new to the board in 2019, he has been a involved with the association for many years. Dr. Graitzer had a solo geriatric practice in Portland, Oregon for the past 20 years and recently worked as an independent contractor for the Kaiser Permanente Geriatric and Long Term Care Division. He has served as a multi-facility medical director for 28 years. 

During his academic career he was Associate Professor of Medicine at the University of North Texas Health Science Center, Ft. Worth, TX for nearly 15 years. Dr. Graitzer was appointed Clinical Associate Professor, Physician Assistant Program at the Oregon Health Sciences University and at Western University. Dr. Graitzer serves as preceptor for osteopathic medical students, family practice and internal medicine residents, physician assistant- students and geriatric fellows.

Dr. Graitzer has co-authored a chapter for a geriatric nursing textbook called "Medications in the Elderly.” He has also served as co-principal investigator for a phase III clinical trial on a new pain delivery system. He also received the 2003 Women’s Health and Wellness Award from the AOA.

Dr Graitzer was recognized in the January 2006 edition of Portland Monthly as one of the top 330 doctors in Portland. In 2015 he was recognized with the Osteopathic Physicians and Surgeons of Oregon, DO of the Year Award.

Howard Graitzer, DO


Dr. Hudson sees himself as a guide who provides patients with information, options and advice to take control of their health, and cardiology as a field in which he can make a significant difference in the health and well being of his patients.

Away from the office, he enjoys skiing, hiking, biking and camping as well as playing and watching football.

Ben Hudson, DO



Dr. Wisco is a board-certified dermatologist and has completed a Mohs Micrographic Surgery Fellowship under Donald J. Grande, MD,the first Mohs Surgeon in Boston, MA, along with a Melanoma Clinical Research Fellowship at Harvard Medical School, Massachusetts General Hospital & the Wellman Center for Photomedicine in Boston, MA.


Much of Dr. Wisco’s medical career has been in the military, where he has served over 20 years in the Air Force and Air National Guard. He has also previously served as a part-time Assistant Professor of Dermatology for Emory University School of Medicine, Tulane University Schoolof Medicine, Oregon Health & Science University, and the Uniformed Services University of the Health Sciences. Currently, Dr. Wisco is in private practice in Bend, OR and is still actively involved in the military as an Officer in theAir Force Reserves.


In addition to his clinical work, Dr. Wisco has been heavily involved in healthcare improvement initiatives primarily through the American Academy of Dermatology (AAD), the American College of Mohs Surgery (ACMS), and the American Medical Association’s National Quality Registry Network (NQRN). Most significantly, his work guided the development of the AAD’s national performance measurement system and data registry(DataDerm) for all of dermatology.


Dr. Wisco’s interest in healthcare performance improvement parallels his clinical research interest of understanding the risk factors that lead to high-risk skin cancer and advanced melanoma in order to improve care processes and promote health. With his research/performance improvement interest, informatics background, and policy work, Dr. Wisco is dedicated to exploring methods to integrate patients,clinicians, health systems, and city governments to drive the creation of healthy sustainable communities.

Oliver Wisco, DO


Sarah Wolff, DO, is a family medicine physician at Providence Progress Ridge in Beaverton, OR. She started her leadership roles in the osteopathic profession early in her career, serving as the osteopathic medical student representative on the American Osteopathic Association (AOA) Board of Trustees as well as the osteopathic student representative on the OPSO board. Now as an OPSO Board member, Dr. Wolff continues her involvement both locally and nationally, as she is heavily involved in young physician societies including the AOA. 


Dr. Wollf has always been drawn to education, both in terms of teaching and learning. Medicine is the field where she knew she would be able to apply these skills. Her passion for patient care goes beyond interpreting laboratory results, determining diagnoses, and creating treatment plans.

“As a family physician, I will give my patients the tools they need to become active participants in their own healthcare,” says Dr. Wolff. “I believe in empowering my patients through education.”

Dr. Wolff earned her medical degree from Western University of Health Sciences College of Osteopathic Medicine of the Pacific and completed both her internship and residency at Family Medicine of Southwest Washington. She also holds a Bachelor of Science degree from the University of Oregon in Biology and General Science.

Born in the Bay Area, but raised locally in the Portland suburban area, Dr. Wolff returned after medical school to the Portland area with her husband to raise their two children.


Should it say where I work (Providence Progress Ridge) or that I'm a family practice physician. It also might want to state that I am heavily involved in young physician involvement in societies such as AOA. Also my photo is 8+ years old, Ill try to get you a newer one.


Sarah Wolff, DO

Alisha Harrington serves as the student advisor to the OPSO Board and is current president of the OPSO club at COMP-Northwest. Alisha has a background in acupuncture, public health, and is now taking on osteopathic medicine. This wide range of experiences has given her the ability to appreciate the multitude of factors connected to health. She states that “along with a deeply rooted passion for problem solving, I have a strong desire to contribute in a meaningful way”.


“Because health isn’t something that happens in a clinic, part of my plan is to build a culture of wellness. To create a foundation that provides an opportunity for individuals to thrive. I will tirelessly participate in all aspects of health promotion from the political to the spiritual. The integrative clinic I dream of creating is not separate from the town I hope to build it in, it is woven into the schools, and the farmers market and the libraries. Promoting health as a lifestyle is something I hope my students and patients will spread to others so that we can live healthy, happy, meaningful lives.


She is the 2019 receipient of the Northwest Osteopathic Medical Foundation/Washington Osteopathic Medical Foundation Scholarship Award. 

 Alisha Harrington, OMS II

Student Advisor to the Board


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