Our Providers

Primary Care Providers

Columbia County Health System

Dr. Gwynneth Neace, DO

Dr. Neace is a Board Certified Pediatrician and received her American Board of Pediatrics certification in 1989 and re-certified in 1996.

Columbia County Health System

Dr. April Biggs, MD

Dr. Biggs is a graduate of Hendrix College with a bachelor’s degree in chemistry. 

Columbia County Health System

Dr. David Woolever, MD

Dr. Woolever is an Internal Medicine Specialist with over 38 years of experience. 

Columbia County Health System

Dawn Meicher, ARNP

Dawn spent 15 years in Intensive Care Nursing in Colorado before joining CCHS. 

Columbia County Health System

Danny L. Mingus, PA-C

Danny has been a Physician Associate since 1992 and involved in the medical field since 1978 when he joined the U.S. Navy.

Columbia County Health System

Jessica Kiefel, ARNP

Jessica has lived in Waitsburg since she was a child. She graduated from Waitsburg High School in 2004. Her husband also graduated from Waitsburg and teaches high school science at Waitsburg High School.

Columbia County Health System

Mathew Gambone, PA-C  Dermatological Focus

Matthew is a graduate of the University of Washington School of Medicine Physician Assistant Program. He has been practicing Medicine for 20 years.

Columbia County Health System

Stephanie Bennett, ARNP

Stephanie says "The best part of family medicine is the families. With every visit, they share the stories of their lives and we get to know each other better and better."

Acute Care/ Emergency

Columbia County Health System

Dr. Lewis Neace, DO

Dr. Neace is Board certified in emergency medicine and practices in the Emergency Department at Good Samaritan Hospital in Portland.

Columbia County Health System

Dr. Gary Thomas Underhill, MD

Dr. Underhill graduated from the Loma Linda University School of Medicine in 1998 and is an Emergency Medicine Specialist.

Columbia County Health System

Dr. Michael Frommlet, MD

Dr. Frommlet received his medical degree from Albany Medical College and has been in practice for more than 20 years and is an Emergency Medicine Specialist.

Columbia County Health System

Dr. Michael Luce, MD

Dr. Luce has served the citizens of Columbia County and surrounding areas since 1980, with an emphasis on long-term, comprehensive, personal, primary care. 

Columbia County Health System

Dr. Kyle Terry, MD

Dr. Terry is a well‐experienced family practice physician who owned and operated his own practice for 23 years before comming to CCHS.

Columbia County Health System

Dr. Bob Johnson

Columbia County Health System

Dr. Sara Ragsdale, DO

Dr. Ragsdale graduated from Kansas City College of Medicine and Bioscience Magna Cum Laude.

Columbia County Health System

Dr. Paula Silha, MD

Dr. Silha is a board certified Family Practitioner, who graduated medical school from the University of Washington School of Medicine. 

Columbia County Health System

Dr. Jill Jenkins, MD

Dr. Jenkins served for two years in the Peace Corps as a volunteer working in Liberia West Africa, 

Columbia County Health System

Nicole Engledow, APRN, FNP-BC, PMHNP-BC

Nicole has been an RN since 2003, specializing in ER, graduating with her FNP-BC from Idaho State University in May of 2013.

Columbia County Health System

Gregg Porter, PA-C, MCHS

Graduated from the University of Washington in 2011 and specializes in Emergency Medicine. 

Not Pictured:

  • Dr. Mark Leonard, MD - Received his medical degree from Michigan State University College of Human Medicine and has been in practice for more than 20 years and is Emergency Medicine Physician
  • Dr. Brad Hunter, MD - Received his medical degree from Oregon Health Sciences University School Of Medicine in 2004 and is an Emergency Medical Specialist.
  • Dr. Heidi E. Shields, MD - Dr. Shields graduated from the Medical College of Wisconsin in 1991 and specializes in Family Medicine.
  • Dr. Sandeep Joshi, MD
  • Dr. Adrian Perez, MD

Wound Care

Columbia County Health System

Melissa Czapka, ARNP

Melissa is a Dayton local who began her journey with Columbia County Health Systems in 2011 as an LPN at Booker Rest Home. 

Behavioral Health

Columbia County Health System

Dr. Todd Carman-Wagner, LICSW, PHD

Dr. Todd is a mental health clinician with a broad range of training, education, and professional experience.

Dentistry

Columbia County Health System

Michael Strang, DDS

Dr. Strang, graduated from the University of Washington in 1983 and has been practicing dentistry over 29 years, 

Columbia County Health System

Andrea Tinoco-Iraheta, DDS