Our Staff


Flint R. Packer, D.O.

Dr. Flint Packer opened Family First Medical Center, in 2002. He has been practicing in Idaho Falls since July 2000. He is board certified by the American Board of Family Practice. Dr. Packer received his Bachelor of Science Degree in Microbiology from Idaho State University in 1993. He received his Doctorate of Osteopathic Medicine from the University of Osteopathic Medicine and Health Science in Des Moines, IA in 1997. After completing a Family Practice Residency through the University of Iowa he returned to his home state of Idaho. Dr. Packer enjoys the full spectrum of Family medicine. Dr. Packer has served as a Chairman of Department of Family Medicine and has served 6 years on the EIRMC Hospital Board of Directors. He has also been the recipient of the First Humanitarian Award from EIRMC. Dr Packer is a wonderful advocate for his patients and a pillar in the community, which brought him to winning the Idaho Immunization Champion Award. He cares for newborn babies to Geriatrics and everything in between (excluding obstetrics). He enjoys building a relationship with his patients that is so important for continuity of care. He approaches your healthcare as a partnership, where you work with him to optimize your health and improve the quality of your life!

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Boyd K. Southwick, D.O.

Dr. Boyd Southwick joined Family First Medical Center in 2003. He is Board Certified by the American Board of Family Medicine since 2003. He received his Bachelors of Science from BYU in 1994, graduating Magna Cum Laude. He received his medical degree from Kirksville College of Osteopathic Medicine in 2000. After completing a Family Medicine Residency in Springfield, Missouri where he served as Chief Resident, he returned to Idaho Falls to practice medicine. Dr. Southwick is very active in the medical community. He is past President of the Idaho Falls Medical Society, and delegate to the Idaho Medical Association. He is on the Board of Directors of the Idaho Academy of Family Physicians. At EIRMC, he is currently chief of staff, and has served as Chairman of the Department of Family Medicine. Currently, Dr. Southwick is the Medical Director for the Transitional Care Unit at EIRMC, Hands of Hope Home Health and Hospice, and Teton Post Acute Care. As an osteopathic physician, Dr. Southwick practices a “whole person” approach; instead of just treating symptoms or illnesses, he regards the body as an integrated whole. He is excited to get to know you and your family in focusing on health and wellness.


Shelley Davis, PA

Shelley joined Family First Medical Center in 2013 after completing her Master’s Degree in Physician Assistant Studies at Idaho State University. She is licensed by the Idaho Board of Medicine, certified by the NCCPA and is a member of the American Academy of Physician Assistants. Prior to pursuing her life-long dream of a career in the medical field she had earned a Bachelor’s Degree in Biochemistry in 1994 and subsequently enjoyed working in biological and chemical research and development, management, journalism and pharmaceutical sales. As a primary care physician assistant she enjoys treating the whole family – from the newest born to their grandparents. She is excited to be part of a medical practice that works as a team, not only with each other but with their patients, whom they compassionately treat as an extended member of their own family. Shelley believes that each person is unique and deserves care that centers on their personal physical, mental and emotional needs. She looks forward to developing the trust necessary to partner with her patients to find their best path for optimal health. She looks forward to meeting you and welcoming you into the family at Family First Medical Center .


Tyson Parker, PA

Tyson joined Family First Medical Center in 2011. As a native of Idaho Falls, he is pleased to be working in his hometown to help his patients optimize their health and achieve a better quality of life. After receiving a Bachelor’s Degree from BYU-Idaho in 2005, he attended Idaho State University, where he received a Master’s Degree in physician assistant studies in 2007. He is licensed by the Idaho Board of Medicine, certified by the NCCPA, and is a member of the American Academy of Physician Assistants. He has worked in family medicine, urgent care, and rural health care settings, and enjoys helping his patients to live happier, healthier lives. Tyson diagnoses and treats a wide spectrum of conditions, but has a particular interest in cardiology, including hypertension, diabetes, and cholesterol management. Tyson believes that the best quality care can be obtained when relationships are built on trust and compassion, and is committed to providing that for his patients. He spends time listening to your concerns and responding in an empathetic and compassionate way. In partnership with Dr. Packer and Dr. Southwick, he looks forward to meeting and treating your whole family.


David D. Buys, PA-C

Dean joined Family First Medical Center in 2015. He attended Saint Louis University where he completed his Physician Assistant training in 1996. He is licensed by the Idaho Board of Medicine, Certified by the NCCPA, and is a member of the American Academy of Physician Assistants. He has worked in Family Medicine, Emergency Medicine, Urgent Care, Rheumatology, and Rural Health Care settings. Dean treats a wide spectrum of health conditions, but has always particularly enjoyed Sports Medicine, and Cardiology. Dean is committed to providing quality care for his patients, and enjoys treating the whole family. He is compassionate and empathetic to each individual’s needs. In partnership with Dr. Packer, Dr. Southwick, Tyson Parker, Shelley Davis, and Melissa Kelly, he looks forward to meeting and welcoming you to Family First Medical Center.


Melissa I. Kelly, FNP-C

Melissa joined the Family First Medical Center team in early 2016. She grew up in Washington State and always had a special interest in the medical field. She received her Bachelors of Science in Nursing at BYU-Idaho in 2005 and worked as a Registered Nurse on the Cardiac Care Unit at EIRMC until moving to Indiana for schooling. While in the Mid-West, Melissa enjoyed teaching NCLEX-RN board review courses for Kaplan and earning her Master’s in Nursing as a Family Nurse Practitioner. She is licensed by the Idaho Board of Nursing, dually certified by the AANP and ANCC, and is a member of the American Academy of Nurse Practitioners. Melissa is thrilled to care for patients of all ages and able to treat a wide variety of conditions and illnesses. As a lifelong learner, she is eager to compassionately understand each patient’s personal needs and preferences, develop trusting partnerships with her patients and their families, and empower them to manage their health. Along with Dr. Packer, Dr. Southwick, and the entire medical team, she looks forward to serving you and your family.