Our Team


Shawn Andrews, MD

Program Director

Dr. Andrews was born and raised in rural Wahkiakum County before attending Seattle Pacific University. She received her Doctor of Medicine from the University of Washington School of Medicine in 1994. She then moved to Olympia, WA to begin her family medicine residency with the St. Peter Family Medicine Residency Program, graduating in 1997.

Dr. Andrews has been practicing family medicine and providing obstetrics in Elma since 1997. She has been adjunct faculty with St. Peter Family Medicine since 1997, and has also hosted Family Medicine residents and students for rotations in Elma throughout her time in Elma. Dr. Andrews enjoys all aspects of primary care, especially long-term continuity relationships with patients, treating the whole family, and making care accessible to everyone, especially those who feel estranged from the healthcare system.

Outside of the office, Dr. Andrews enjoys time with family (including lots of animals), gardening, cooking, crafting, SCUBA diving and jigsaw puzzles.


Mandy Achterman, DO, MPH

Associate Program Director

Dr. Achterman is a native to the Northwest; she was born and raised in Portland, Oregon. Following high school, she received a Bachelor of Arts in Spanish from Macalester College in Saint Paul, Minnesota. She holds a Master in Public Health, International with an emphasis in maternal infant health and community education and a Doctorate in Osteopathic Medicine from Western University of Health Sciences. She is fluent in Spanish and specializes in the full spectrum of family medicine, as she puts it, “cradle to the grave” including deliveries and newborn care through geriatrics. She also performs OMT, or osteopathic manipulative therapy.

Dr. Achterman is thankful to be living close to home and enjoys spending time with her family and her two pug/Chihuahua/terrier puppies. She was a competitive swimmer through the university level and enjoys cycling. Dr. Achterman has completed the 200-mile STP five times, twice in one day and once on a tandem bike.


Anthony Ybarbo

Program Coordinator

Bio coming soon!

Residency Faculty


Andrew Burton, PharmD

Pharmacology Faculty

Bio coming soon!

Ken Dietrich, MD, Chief Medical Officer

Adjunct Faculty

Dr. Ken Dietrich comes to Summit Pacific Medical Center with extensive knowledge in both medicine and administration. Prior to accepting the CMO role, Dr. Dietrich spent a year and a half working in SPMC’s Emergency Department. Dr. Dietrich is excited about Summit Pacific’s vision statement and realizes that Grays Harbor is an underserved area. His work at Summit Pacific will include evaluating systems, developing services, and working with our providers to ensure they have the resources they need to provide great care. He is a Fellow of the American Academy of Pediatrics and a Fellow of the Society of Critical Care Medicine. He has worked in critical care medicine for more than 34 years. He served as a pediatric critical care physician at Mary Bridge Children’s Hospital in Tacoma for 26 years.


Marcus Heisler, MD, MPH

Core Faculty

Dr. Heisler joined Summit Pacific Medical Center in 2018 drawn by its mission founded on commitments to service and health equity and with a focus on prevention. He attended medical school at Loma Linda University where he also received a Masters of Public Health with an emphasis in Population Medicine. He is board-certified in both Family Medicine and Preventive Medicine and has special interests in population health, lifestyle medicine, chemical dependency, and medical education. He enjoys taking care of his patients in both the inpatient and outpatient settings as one of SPMC’s hospitalists and primary care providers. He is passionate about preventing and treating chronic diseases with evidence-based lifestyle medicine and behavior change tools and enjoys partnering with his patients through their health journeys.

Originally a California transplant, he has made Washington his home. He is an amateur vegetable gardener and rock climber. He and his wife enjoy the countless outdoor adventure opportunities the PNW has to offer.


W. Steven Hutton, MD, PS

Pediatric Faculty

Dr. Hutton has been devoted to providing the children of Grays Harbor with excellent care for more than 20 years. He strives to achieve a safe and welcoming environment where children are the highest priority. This is evident in his practice with special medical interests including Asthma, Child Abuse and Neglect, Attention Deficit Disorders, Behavior & School Problems, Oral Health and Child Advocacy. With over 30 years of pediatric experience, Dr. Hutton continues to be the cornerstone of children’s health care in Grays Harbor.

Dr. Hutton grew up in Texas and worked his way through college at West Texas A&M he obtained a Bachelor of Science degree, and then continued on to medical school at University of Texas, Galveston. He is certified by the American Board of Pediatrics, where he has been a diplomat since 1979. In 2001, he attended the Nancy O’Leary Memorial National CAC Training Academy. Dr. Hutton co-founded the Children’s Advocacy Center in 1999.


Brittany Petrie, PT, DPT

Physical Therapy Faculty

Brittany Petrie grew up in Southwest Washington. She attended Eastern Washington University where she earned a Bachelor of Science in Biology as well as her Doctor of Physical Therapy Degree. She has lived and worked in Western Washington since she started practicing in 2011 and has been with SPMC since 2016.

As a physical therapist, she has worked in outpatient orthopedics, skilled nursing, and acute care. She incorporates manual therapy into patient care at Summit to promote better function and quality of life and can also provide pelvic therapy, which includes assessment and treatment of incontinence, pelvic pain, and sexual dysfunction for both women and men.


Jordan Snell, DO

Core Faculty

Jordan Snell grew up in the small farming community of Lexington, NE before moving to Colorado after high school. He received his degree from Rocky Vista University College of Osteopathic Medicine. His rural upbringing and the desire to practice family medicine motivated him through medical school. Jordan feels strongly about making excellent care accessible to the underserved and marginalized. He currently lives in Centralia, WA where he is raising his three children.


Mimi Syed, DO

Emergency Medicine Faculty

Dr. Syed is Summit Pacific’s Emergency Department Medical Director and is the Clinical Assistant Professor at WSU School of Medicine and UW School of Medicine. She was born and raised in Chicago, Illinois. There she would train and work in Emergency Medicine and serve as an Assistant Emergency Medical Director before coming to Washington State. She is passionate about Emergency Medicine and enjoys running, gardening, and rescuing animals in her spare time.

Janelle Wortman, PharmD

Core Faculty

Dr. Janelle Wortman, a Pacific Northwest native, is dedicated to enhancing team-based medicine to further the delivery of high-quality healthcare to our rural communities. After graduating with a Doctorate of Pharmacy degree from the University of Washington, Janelle then went on to complete two years of residency where she specialized in family medicine (Virginia Garcia Memorial Health Center – Hillsboro, OR and Providence St. Peter – Chehalis, WA).

As a champion of evidence-based medicine, Janelle will be involved in resident scholarly activity requirements, journal clubs, and didactic teaching. Situated within the family medicine clinic, she is often available for impromptu consults and warm handoffs. Janelle manages her own patient panel under collaborative practice agreements with our team and welcomes residents for shadowing opportunities.

When not reading primary literature, she is an avid rock climber and paddleboarder and relishes time spent outside in the beautiful backyard of Western Washington.