Our Providers


Mandy Achterman, DO, MPH

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 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.


Debbrah Bergeron, MD

Family Medicine

Dr. Bergeron is from San Diego, California and attended medical school at the American University of the Caribbean School of Medicine in Sint Maarten. She specializes in Family Medicine. Having grown up in an underserved area she feels a strong kinship with underserved and rural communities and looks forward to providing care to the greater Grays Harbor area for years to come. In her free time, she enjoys camping, traveling and listening to live music.


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.


Mariel Chan, MD

Family Medicine

Dr. Chan was born and raised in Port Coquitlam, British Columbia. She would obtain her Bachelor of Science in Anatomy and Cell Biology from McGill University and her Doctor of Medicine from the American University of the Caribbean School of Medicine in Sint Maarten. While studying in the Caribbean she created a partnership between her medical school and a local soup kitchen by leading volunteers to help deliver and serve warm meals to members of the community. Her time spent with those who have limited resources inspired her to become a family medicine physician with a focus on obstetrics.

In her spare time, she loves to spend time with her family. She has a passion for staying fit by weightlifting or hiking the wilderness with her dog Preston.


Rabab Cheema, MD

Family Medicine

Dr. Cheema was born in India and raised in both India and Canada. She is fluent in both Hindi and Punjabi. While in medical school, she served as a mentor for the Player Development Program in Sint Maarten and as an anatomy teaching assistant. She is passionate about community service and providing quality care to under-served populations.

Dr. Cheema loves to travel and explore different cultures. She enjoys soccer, hiking, dancing, and spending time with family and friends. She is an adventurer and enjoys the thrill of bungee jumping and skydiving.


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 would 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.


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 to medical school at the 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.


Naeemah Johnson, MHP, CMHS, LICSW

Behavioral Health

Naeemah was born in Philadelphia, Pennsylvania, and raised in the Pacific Northwest before attending Pennsylvania State University. She received her Master in Social Work from Grand Valley State University in 1994, emphasizing clinical social work and non-profit leadership. Naeemah moved back to the Pacific Northwest in 2003 to be closer to family. Naeemah likes to be called “Nai” and brings many years of clinical experience. She enjoys working with individuals across the lifespan from 2.5 to 100 years old. She believes in a holistic approach to healing that supports the whole person’s wellness-mind, body, and spirit. Nai’s approach is meeting people where they are at and creating healing partnerships. She believes that these are the building blocks to change.

When not working at Summit, Naeemah is passionate about learning her Cherokee tribe language, traditions, spending time with family and giving back to her community. She is an avid reader, enjoys research and playing different versions of solitaire. Nai considers herself a “novice” fisherwoman and likes finding new places to throw her rod and reel. Nai’s mission in life is not to leave the planet unchanged.


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.


Mathew Kummerfeldt, PA-C

Family Medicine

Mathew Kummerfeldt graduated from the MEDEX Northwest Physician Assistant training program at the University of Washington School of Medicine. Mathew specializes in Primary Care and Family Practice and is passionate about teaching prevention and the early identification of illnesses. He likes to provide education to his patients so they can better understand and manage their chronic illnesses with confidence.

Mathew is from a small town in Colorado and is a Navy veteran who served as a corpsman and emergency medical technician. He enjoys exploring the Olympic Peninsula, sailing, practicing self-sufficiency and spending time on his family farm with his wife and two children.


Joseph McFadden, DNP

Family Medicine

Joseph McFadden was born and raised in Grays Harbor where he got his start in the medical field by attending nursing school at Grays Harbor College. He obtained his Doctorate of Nursing Practice from Frontier Nursing University, where he specialized in family medicine. He has worked extensively with patients who suffer from chronic diseases such as kidney disease, hypertension and diabetes.

Dr. McFadden loves working with adults, children and families. He understands the lifestyles of rural working-class families and wants to help them develop healthier and happier lives. Outside of the office Joseph likes to spend time with his children and family.


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 is a western Washington State native and is excited to be back in the region to assist in improving the health of his fellow Washingtonians. He enjoys keeping a dialogue with his patients to help set goals that are reachable and understood. He practices evidence-based medicine with a patient-centered focus and mission in line with that of Summit Pacific – to create the healthiest community in the Nation.

Dr. Miller is passionate about the Pacific Northwest and enjoys spending time with his wife and two dogs. In his spare time he likes to fish rivers, explore forests, mountains and ocean beaches.


Ioan Nicolescu, MD

Family Medicine

Bio Coming Soon!


Patrick O’Reilly, PA-C

Family Medicine

Patrick is from Morehead City, North Carolina. He would earn a Bachelor of Science in Preprofessional Biology with a minor in Chemistry at Appalachian State University and a certificate in Biotechnology Project Management from UW and UCSD. He would then go on to complete the Physician Assistant Program at Bethel University in Paris, Tennessee. Patrick has previously worked as a clinical research assistant, research scientist II and a laboratory technician.

Patrick is a father and husband who enjoys spending time in the wilderness to hike and camp. He enjoys going to the dog park, gardening, woodworking and is an avid UNC basketball fan.


Benjamin Schultze, PhD, MSN, M.Ed, CHSE, ACNP-BC

Hospitalist

Dr. Schultze is the Medical Director for the Acute Care Unit at SPMC. He obtained his acute care nurse practitioner training at Yale University and then completed his PhD at Vanderbilt University with a focus on cytokine regulation in cancer. He is passionate about delivering individualized holistic care to all of his patients. His expertise is treating acute or chronically ill hospitalized patients. He serves in the United States Air Force in the Aeromedical Evacuation (AE) unit and was named the AE officer of the year in 2017. Dr. Schultze developed the entire simulation curriculum to prepare USAF members for combat medical operations. He is also the Director of the Adult Gerontology Acute Care Nurse Practitioner Program at Oregon Health & Science University in Portland, Oregon where he is also a professor. There he teaches applied pathophysiology to nursing and medical students. Additionally, he is a returned Peace Corps Volunteer. When not working, Dr. Schultze can be found lost in the woods somewhere in the Pacific Northwest.


Jordan Snell, DO

Hospitalist

Jordan Snell grew up in rural Nebraska before moving to Colorado for undergraduate and medical school. He graduated from Rocky Vista University College of Osteopathic Medicine and completed residency with Providence St. Peter’s 1+2 rural family medicine residency in Chehalis, WA. Jordan feels strongly about making excellent care accessible to underserved communities and has a particular interest in palliative and hospice medicine. He practices as a hospitalist in Summit Pacific’s critical access hospital, supervising residents there and in clinic. He lives in Centralia, WA with his partner and three children.


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.


Yue Teng, MD

Family Medicine

Dr. Teng has over 20 years practicing medicine. He has worked as the director of clinic quality and associate director of curriculum at Cedar Rapids Medical Education Foundation. He was also the lead faculty for clinical QI and scholarly activity at St. Peter Family Medicine.

Dr. Teng grew up in China and would complete his medical school there. He would finish his Family Medicine Residency in Iowa. He believes in full spectrum family medicine and his passion is finding caring and efficient ways to provide care.

In his free time, Dr. Teng enjoys biking, fishing and recently picked up skiing.


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.