Our Providers

Mandy Achterman, DO

Family Medicine with Obstetrics

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.

Shawn Andrews, MD

Family Medicine with Obstetrics

Dr. Andrews was born and raised in rural Wahkiakum County before attending Seattle Pacific University. She stayed in Seattle for medical school at the University of Washington moved to Olympia for her family medicine residency at the St. Peter Family Medicine Residency Program. Andrews has been practicing family medicine and providing OB services in Elma since 1996 and remains as adjunct faculty at Providence St. Peter Family Medicine. Dr. Andrews treasures time with her family and pets and baking for family and friends.

Mary Ellen Biggerstaff, DNP

Family Medicine

Dr. Biggerstaff is a veteran provider a SPMC since 2009. She received her master’s in nursing through the Frontier School of Nursing and Midwifery. She previously worked in oncology at St. Peters Hospital. She is board certified through the American Academy of Nurse Practitioners. In her spare time, she enjoys surfing, reading, traveling and spending time with her Family.

Rebecca Bodle-Shingu, ARNP

Family Medicine

Rebecca is coming to us with over 20 years of experience as a primary care provider. She has both her Bachelor of Science in Nursing and Master of Science in Nursing from the University of Washington and has a passion for encouraging people to be as healthy as they can be through health promotion and risk reduction. She is looking forward to caring for our rural community and hopes to see patients of all ages. In her spare time, she loves to Jazzercise, play tennis, quilt and win at Fantasy Football.

Rebecca Bozeman, PA-C

Family Medicine

Rebecca grew up in Anchorage, AK and moved to Seattle to attend the University of Washington where she received a Bachelor of Science. She then worked as a nursing assistant at Harborview Medical Center for two years before moving to Washington, D.C. where she attended George Washington University and received a Master’s Degree in Physician Assistant Studies. Following graduation, she moved back to Washington State.

Bozeman enjoys providing care in the primary care setting as it allows her to see a great amount of variety of patient ages and conditions. In her spare time, she enjoys hiking, camping and cooking.

Rabab Cheema, MD

Family Medicine

Dr. Cheema was born in India and raised in both India and Canada. She has a special interest in community service, and in medical school served as a mentor for the Player Development Program in St. Maarten, as well as an Anatomy Teaching Assistant. She is passionate about providing quality care to under-served populations.

Dr. Cheema loves to travel and explore different cultures, while meeting new people. She enjoys spending time with family and friends. Dr Cheema enjoys soccer, hiking, and dancing. She is an adventurer and has enjoyed bungee jumping and skydiving.

Samuel Engemann, DO

Family Medicine

Dr. Engemann is originally from St. Louis Missouri. He received a Bachelor of Science Degree from the University of Missouri, Columbia. He is proud to have graduated from the original Osteopathic medical school, the A.T. Still University Kirksville College of Osteopathic Medicine in Kirksville, Missouri.

He completed an internal medicine residency at Northeast Regional Medical Center in Kirksville, Missouri. In his current role, Dr. Engemann practices osteopathic manipulation in addition to general outpatient and inpatient internal medicine. He is currently focusing on diagnosis and treatment of rheumatic diseases such as rheumatoid arthritis. He loves the challenge and enjoys the connection of caring for our rural population here in Elma. He cares for adults of all walks of life whose care needs range from routine screening to coordination and management of rare and complicated diseases.

He is wound care certified and has completed additional training in cranial osteopathic treatments. He is passionate about improving the lives of patients with heart failure, metabolic syndrome, chronic pain, substance abuse and the geriatric population.

Dr. Engemann moved to Washington State to be closer to his family who reside in both Portland and Seattle. When he is not in the clinic, you can find Dr. Engemann by the water or spending time out in the woods.

Amy Graham, ARNP

Family Medicine

Amy was born in Aberdeen and raised in Westport. She graduated from Ocosta High School before attending Grays Harbor Community College where she earn an associate degree in Nursing in 1992. She then moved to Yakima, Washington where she worked as an emergency department RN and as a Sexual Assault Nurse Examiner (SANE-C). She then obtained a Master of Science in Nursing, FNP from Gonzaga University in 2014. Following graduation, she worked at a family practice, Terrace Heights Family Physicians, as well as Westside Medical Center Urgent Care Clinic from 2015-2017. Her family relocated to Grays Harbor in January 2017. Amy is married with three teenage children; her hobbies include reading and riding motorcycles.

Thomas Greisamer, MD


Dr. Tom Greisamer grew up on the East Coast. During service in the United States Air Force he obtained a bachelor’s degree in economics at Golden State University. He was admitted to medical school was a member of the “Intervention Class” at St. George’s University School of Medicine in Grenada in 1983. He then graduated from the American University of the Caribbean in 1989 and completed residency training in psychiatry in 1996 at the University of Kansas – Wichita. 

He has over 20 years of experience as a psychiatrist and has practiced in state, federal and community settings and is certified by the American Board of Psychiatry and Neurology and has been certified in Forensic Psychiatry.

Dr. Greisamer is excited and optimistic about the opportunity to practice in a modern facility, in a rural setting, and working in a consultation role with such a large diverse, well-trained staff of medical doctors and practitioners. His goal is to help patients solve mental and physical health problems. With active collaboration this goal can be achieved through listening, evaluation, and discussion of the appropriate treatments that will promote happy, productive and satisfying life accomplishments.

Dr. G. has many interests including anthropology, engineering, finances, aviation, agriculture, history and Native American art. He enjoys spending time and cooking with Melan, his wife of 40 years. Living in Moclips, they enjoy the changing beauty of the Northwest coastal scenery and enjoy observing all God’s critters.

Marcus Heisler, MD, MPH

Family Medicine

Dr. Marcus Heisler is originally from Sacramento, California. He attended medical School at Loma Linda University, also in California, where he also received a Master of Public Health with an emphasis in population medicine. He specializes in family and preventive medicine and enjoys working with all ages and entire families. He is passionate about preventing and treating chronic diseases with evidence-based lifestyle medicine; helping individuals quit smoking; reversing some chronic diseases with lifestyle factors as well as population and community health and wellbeing. He considers himself an amateur vegetable gardener and enjoys hiking and backpacking with his wife.

W. Steven Hutton, MD, PS

Pediatric Medicine

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.

Jessica Jurasin, ARNP

Pediatric Medicine

Jessica is a board certified family nurse practitioner who graduated from Pacific Lutheran University. She has more than 13 years of pediatric nursing experience to offer her patients. She has special interests in health education for the entire family, adolescent health and weight management.

She has worked as an RN in Aberdeen since 2003 in addition to working at Mary Bridge Children’s Hospital in Tacoma and on the Pediatric Unit at Providence St. Peter Hospital in Olympia.

Jessica was born and raised in Aberdeen where she currently lives with her husband and two sons. In her free time, Jessica enjoys hiking, gardening, camping and experimenting in the kitchen.

Joe Kohn, ARNP

Family Medicine

I grew up a little north of Hoquiam, where I attended and graduated from Hoquiam High School. After graduation, I took many odd jobs and worked mainly as a laborer and operating engineer until making the switch to Nursing in 2006. My Advanced Nursing Degree is from Frontier Nursing University in Kentucky. My degree is in Family Practice, but my experience as a registered nurse is mostly emergency. Most recently, I served as the clinical educator for SPMC.

My education and experience have prepared me to treat the entire family in acute/emergent situations and the chronically ill. I have always been beholden to the idea of providing care to the multigenerational family. My passion really lies in providing high quality care that incorporates educating the patient and approaching opportunities as a team. I can only provide the tools, knowledge and insight; patients need to do the building.

Family is extremely important to me and is the driving force in my life. I am married with a lovely wife, we have five children ranging from age 18 to 3 yrs. Special interests are my love of sports and fitness. I am an avid Seahawks and Husky fan. Fitness is important to me and love of fitness is something my wife and I strive to instill in our children. Healthy living is a goal I live and practice by.

Joseph McFadden, ARNP

Family Medicine

Joseph McFadden was born and raised in Grays Harbor. He attended nursing school at Grays Harbor Community College and would go on to obtain his undergraduate degree at Central Washington University. While attending Frontier Nursing University, Joseph would become a ARNP specializing in family practice.

Joseph loves working with adults, children, and families. He understands the lifestyles of rural working-class families and wants to help them to develop healthier and happier lives. He has worked extensively with patients who suffer from kidney disease, hypertension, and diabetes. Outside of the office Joseph likes to spend time with his family, watch movies, read books, and learn about new health techniques to help his patients.

Bonnie McReynolds, ARNP

Family Medicine

Bonnie brings to Summit Pacific many years of experience in family medicine as well as a deep knowledge of both palliative care and women’s health issues. Bonnie is looking forward to getting to know the community and being able to provide personalized, patient-centered care here in our healthcare clinic. Bonnie is a graduate of Vanderbilt University.

Roy D. Miller, MD

Family Medicine

Dr. Miller was born in Olympia and is a Washington state native. He has experience as a medical technologist and has worked in a microbiology lab. He is passionate about rural emergency medicine and volunteered as an emergency medical technician in Wisconsin.

Dr. Miller loves the Pacific Northwest and is excited about returning to the area. He enjoys spending time with his wife and two dogs, especially in outdoor adventures including camping, hiking, horseback riding, fishing and sailing.

Carolyn Price, LICSW, MSW

Social Worker

Carolyn Price has worked in rural mental healthcare for over 20 years serving both teens and adults. She was raised in Olympia, WA and has lived in Packwood, WA for 25 years. She would earn bachelor’s degrees in both Psychology and Music from the University of Puget Sound, and then go on to Eastern Washington University to earn her Master of Social Work and Certificate in Public Administration. Carolyn is passionate about self-care techniques and enjoys discovering new ways for patients to enhance their lives. In her spare time, she enjoys skiing and hiking with her partner and two dogs.

Jennifer Smith-Grady, ARNP

Family Medicine

Jennifer has always wanted to help people. From her earliest memories, she remembers wanting to be a nurse. She took the long way there, working first as a pharmacy technician and then as a hospital ward secretary before beginning her studies in nursing.

She went back to school to earn an Associate of Applied Science in Nursing at Henry Ford Community College in Dearborn, Michigan and then completed her Bachelor of Science in Nursing at the University of Detroit Mercy. While highly respectable and necessary, she found that working as a registered nurse limited her ability to affect the type of change with patients and their families that she felt called to facilitate. She completed her Master of Science with specialty training as a Family Nurse Practitioner at the University of Michigan-Ann Arbor in 2016.

Meeting patients where they stand and creating a safe space for them to learn and optimize their health is her passion. Jennifer has an interest in alternative healing modalities such as energy work, like Reiki or guided imagery, in addition to her allopathic advanced nursing practice training.

She fell in love with the PNW while working as a travel nurse practitioner and is looking forward to exploring the beautiful countryside. She is grateful for the opportunity to serve the community here in Grays Harbor County. Her family resides in Michigan and includes two grown children, parents, siblings and extended family.

Justin Taylor, ND

Family Medicine

Dr. Taylor graduated from Southwest College of Naturopathic Medicine in 2009. After completing a Family Practice Residency in Concord, New Hampshire, he moved to Arizona where he obtained additional experience in Cardiology. He provided integrative healthcare for in Arizona for seven years where his integrative family medicine healthcare model was awarded the “Most Outstanding Health Organization” from the Tucson Local Media sponsored by Blue Cross and Blue Shield. Dr. Taylor and his wife, also a naturopathic physician, enjoy spending time with their two children, music composition, camping and look forward to exploring Washington.

Nicole Taylor, ND

Family Medicine, Saturday Appointments

Dr. Nicole Taylor attended the Southwest College of Naturopathic Medicine in Tempe, Arizona and has been providing care for over ten years. She provides family medicine with a focus in women’s health, from adolescence through and beyond menopause. She has extensive knowledge and experience in hormone replacement therapy, weight management and primary care from pediatrics and beyond. Her practice in Arizona was awarded “Most Outstanding Health Organization” from the Tucson Local Media. Early on in her career, Dr. Taylor was a health, physical education and dance teacher. She still has a great love for dancing and also enjoys spending time with her husband and two daughters, ethnic food and traveling.

Kaylyn Wayman, ARNP, FNP-BC

Family Medicine

Kaylyn is a Grays Harbor local who graduated from Aberdeen Weatherwax High School. After high school, she received a Bachelor of Science in Nursing from Washington State University. While working as an RN, she pursued a Master of Science in Nursing, with a focus on family medicine, from Massachusetts College of Pharmacy and Health Sciences. She has a background in emergency medicine and neuro-surgical units and is certified through the AANP as a Family Nurse Practitioner.

Wayman enjoys working with patients across the lifespan. In her free time, she enjoys family time and getting outdoors to visit local beaches, lakes and exploring the Pacific Northwest.