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Faculty & Staff


  • May Hong

    May Hong, MD

    Program Director

    May Hong received her Doctor of Medicine from the University of Texas Medical Branch and completed her Family Medicine residency at Austin Medical Education Program in Austin, Texas. May has worked as a primary care physician in Texas and New York. In addition to running the residency program, she also sees her own patients at the Redwood Community Health Center. Her son is away in college but her twin daughters are still at home. In her spare time, she plays the piano and cello.

  • Dr. Courtney Ladika

    Courtney Ladika, MD

    Associate Program Director

    Dr. Ladika attended Wake Forest School of Medicine and completed her Family Medicine residency at McKay Dee Family Medicine Residency in Utah, where she served as Chief Resident. She supervises residents and sees her own patients at the Redwood Community Health Center and on the Mobile Medical van. She lives in Eureka, where she enjoys running through the redwoods forests, biking along the coast, swimming in the lagoons and backpacking with her family in the nearby Trinity Alps.

  • Jenna Martini

    Jenna Martini, DO

    Core Faculty

    Jenna Martini received her medical degree from the Touro University College of Osteopathic Medicine in Vallejo California and completed her residency training in Family Medicine at Marian Regional Medical Center in Santa Maria, California, where she also served as Chief Resident. She has worked for the Open Door Community Health Centers for several years and is pleased to be joining the core faculty of the residency program. When not working she enjoys spending time in nature with her children, gardening, and cooking.

  • Simon Stampe

    Simon Stampe, MD

    Core Faculty

    Simon Stampe attended SUNY Upstate Medical University in Syracuse, NY. He completed his family medicine training at the University of Colorado's Swedish Family Medicine Residency and served as chief resident. He then completed a fellowship in advanced obstetrics at Swedish First Hill in Seattle. He supervises residents in clinic and on Labor and Delivery. Outside of work he enjoys sailing and spending time in the mountains with his wife Meg and his dog George.

  • Dr. Willard Hunter

    Willard "Bill" Hunter, MD

    Dr. Hunter attended medical school at the University of California, Los Angeles and completed his Family Medicine residency at University of California, Davis. He served as the medical director of Redwoods Rural Health Center in Redway for 20 years, before becoming Open Door’s Chief Medical Officer. In 2020 Bill transitioned his role at Open Door to CMO Emeritus, but continues to attend residents at the Redwood Community Health Center. He is known for his energy, passion and his beautiful singing voice.

  • Carrie Griffin

    Carrie Griffin, DO

    Dr. Griffin is board certified in Family Medicine and Addiction Medicine. She went to medical school at the Virginia College of Osteopathic Medicine, attended residency and served as chief resident at Maine Dartmouth Family Medicine Residency and completed a Maternal Child and Reproductive Health fellowship at the University of New Mexico. She has practiced in Humboldt County since 2018 and when not working loves to read, travel and learn all kinds of new things.

  • Jerry Alston

    Jerry Alston, MD

    Dr. Alston has been a family practitioner at the Open Door NorthCountry Clinic since 1998. He earned his Doctor of Medicine in 1991 at the State University of New York at Stony Brook and completed his family practice residency at the Providence Medical Center in Seattle. Prior to coming to Humboldt County, he practiced at the Zuni Indian Hospital in New Mexico for several years. His interests include guitar, bicycling, soccer, hiking, and spending time with his family.

  • Jason Yost

    Jason Yost, MD

    Dr. Yost received his medical degree from he University of Colorado School of Medicine and completed training in Family Medicine at Cascades East Family Medicine OHSU rural campus in Klamath Falls Oregon where he also served as Chief Resident. In addition to working at a local Emergency room, he has worked for the Open Door Community Health Centers since 2018 and is the point of care ultrasound (POCUS) champion of the residency. Outside of work he enjoys raising his two young kids, spending as much time as possible outside with his family, and getting dirty in his garden.

  • Lei Han, MD PhD

    Lei Han, MD, PhD

    Dr. Han obtained her medical degree from Xi’an Medical School in China prior to receiving a PhD in Molecular Biology from Ohio State University. She then completed a Family Medicine residency at the University of Wisconsin. She is the Medical Director of the Skilled Nursing Facilities in Humboldt County and supervises residents with their Nursing Home patients and on their inpatient hospital rotations. When not working she enjoys gardening, good food, watching movies in the theater and is trying to learn to play the violin.

  • Antionette Martinez

    Antoinette Martinez, MD

    Dr. Martinez supervises residents on their rotation at United Indian Health Services of Humboldt County. She attended the University of North Dakota School of Medicine and Health Sciences through the INMED (Indians Into Medicine) Program. She completed a residency in Family Medicine at the University of California Davis, and went on to 3 years of OB/GYN residency as well. Dr. Martinez is Chumash Indian and is a member of the CMA JEDI (Justice, Equity, Diversity, and Inclusion) Committee and the Association of American Indian Physicians. Antoinette loves riding her horses, spending time with family and friends, and participating in cultural and traditional ceremonies.

  • Kelvin Vu

    Kelvin Vu, DO

    Kelvin Vu received his medical degree from Western University College of Osteopathic Medicine and completed his residency training in Family Medicine at University of California Davis Medical Center, where he also served as Chief Resident. Since 2020 he has been the Open Door Community Health Center’s Chief Medical Officer. He supervises residents at the Redwood Community Health Center. When not working, Kelvin enjoys travelling the world with his wife and two sons, watching movies and playing sports.

  • Joseph Carroll

    Joseph Carroll, MD, PhD

    Dr. Carroll is a retired family physician who began work in Humboldt County in late 1982. Prior to medical school he received a Doctorate in Mathematics from Harvard University. He retired from clinical practice in 2016 but has continued working with the residency program as the director of research, supervising residents with their research projects. His main interest is in advancing the potential for medical research in the county, with results to be applied to our local population. He is married with two grown sons. Joe describes himself as someone who runs slowly, practices Shotokan karate disappointingly, and does mathematics reasonably well.

  • Conor McCartney

    Conor McCartney, MD

    Dr. McCartney directs the Adult Inpatient Teaching Service at Providence St. Joseph Hospital Eureka. He is originally from Madison, Wisconsin, and went to medical school and completed an Internal Medicine residency at St. Louis University. He was previously an assistant professor at Saint Louis University while working at the VA hospital. He is the first author on a number of articles indexed in PubMed. Outside of work, he enjoys gardening, brewing gluten free beer, playing an acoustic guitar, and taking advantage of the seemingly endless hiking trails Humboldt County has to offer.

  • Bruce Kessler, MD

    Bruce Kessler, MD FACP

    Dr. Kessler received his MD from Columbia University College of Physicians and Surgeons and completed an Internal Medicine residency at the Stanford University Hospital. He practiced primary care internal medicine in Humboldt County for over 40 years prior to retiring from his outpatient practice in 2018. In 2020 he served as the Interim Designated Official of the residency program, but he continues to attend on the Resident's Inpatient Teaching Service. When not practicing medicine, he enjoys visiting his 5 grandchildren, birdwatching, hunting mushrooms and going on long distance bicycle trips with his wife of 50 years.


  • Travis Sewalls

    Travis Sewalls, MD

    Designated Institutional Official

    Dr. Sewalls attended medical school at the University of Kentucky and completed his residency at the University of Kentucky Emergency Medicine Program. He is the Chief Medical Officer of both Providence St. Joseph Eureka and Redwood Memorial Hospital I Fortuna. Dr. Sewalls has been working in executive leadership roles in a variety of capacities for the past 10 years. He is married with two young adult children. When he is not working, Travis enjoys hiking, biking, telemark skiing and building on his van.

  • Nick Wadsworth

    Nick Wadsworth

    Graduate Education Manager

    Nick joined the Family Medicine Residency program as the GME Manager in August of 2021. Prior to joining the team, he spent ten years working in education in a variety of capacities. He holds a master’s degree in educational leadership from Boise State University and bachelor’s from the University of Hawaii at Hilo. As an undergraduate, Nick was able to study oceanography at Humboldt State University via the year-long National Student Exchange program. During this time, Nick fell in love with all that the north coast of California has to offer and is thrilled to finally be back! Outside of work he enjoys surfing, sailing, snorkeling, trail running and birding with his wife.

  • Karen Wilson

    Karen Wilson

    Residency Administrative Assistant

    Karen Wilson joined the residency team in August, 2019. She has over 15 years of experience working in the health field in Humboldt County. Karen graduated from Sacramento State with her Bachelor’s in Communications. She was born and raised in Humboldt County and lives in Fortuna with her greatest joy kids Chandler and Courtney. She enjoys travel, backgammon and spending time at Ruth Lake.

  • Sarah Ross

    Sarah Ross

    Vice President of Operations Open Door Community Health Centers

    Sarah Ross oversees medical and dental health services for Open Door Community Health Centers in Eureka, Fortuna, and Ferndale. In this role, She is responsible for all residency operations within Open Door and enjoys the successful partnership with Saint Joseph Hospital in this endeavor. Born and raised in Southern Humboldt, Sarah graduated from UC Berkeley and worked with various health care organizations in the Bay Area before returning to Humboldt County in 2015. Sarah enjoys raising her two kids in the redwoods and playing music with her husband.

CMA Plessner Award Winners

Every year the California Medical Association awards The Frederick Plessner Memorial Award to the one physician in the state who best exemplifies the practice and ethics of a rural practitioner. This is often called the “Country Doctor Award.” Our program is unique and proud to have three physicians on our faculty who have received this award.

  • Willard Hunter


    Willard “Bill” Hunter, MD

    Willard Hunter is a Family Physician who has practiced in Humboldt County for 40 years. He is a member of the core faculty for our residency program.

  • Ellen Mahoney


    Ellen Mahoney, MD

    Ellen Mahoney is a surgeon who specializes in Breast Cancer surgery. She is the chair of the hospital Cancer Committee and coordinates the second year rotation in Cancer Care.

  • Robert Soper


    Robert Soper, MD

    Robert Soper is a psychiatrist who has practiced in Humboldt County for over 25 years. He works with residents on the first year rotation in Behavioral Health.