Craig A. Gustafson, M.D.
Founder, Appleton Clinics
Board certified by the American Board of Family Medicine
Doctor of Medicine Degree, University of Arkansas (2001)
Diplomate, American Academy of Family Physicians
Dr. Gustafson has particular interests in preventive medicine, dermatologic procedures and orthopedic injury management. He enjoys skiing, family camping trips and riding dirt bikes.
Dr. Gustafson is married with three children.
Lawrence Stelmach, M.D.
Board certified by the American Board of Family Medicine
Doctor of Medicine degree, University of New Mexico School of Medicine (1993)
Bachelor of Science in Medical Technology, University of Mexico School of Allied Sciences
Biology / Chemistry, University of Hartford
Dr. Stelmach's special medical interests include: Nutritional and lifestyle, travel and tropical medicine, diabetes and infectious disease. He enjoys cycling, jazz guitar, fly fishing, aviation and travel.
Dr. Stelmach is married with three children.
Stacia Baker, M.D.
Board Certified by the American Board of Family Medicine
Practicing family medicine in the Grand Valley since 2011
Doctor of Medicine Degree, Albany Medical College (1993)
Residency of Family Medicine, Bangor, Maine
BA Population and Environmental Biology, Minor in Chemistry, University of Colorado
Dr. Baker has particular interests in care of the family, women's health, pediatrics, teen health, and palliative care.
She enjoys spending time with family, cooking, gardening, yoga, hiking, biking, travel and acrylic painting.
David Carlson, M.D.
Board Certified by the American Board of Family Medicine
Practicing medicine in the Grand Valley since 2009
Doctor of Medicine, The University of Colorado, 2009
Bachelor of Arts in Philosophy, The Colorado College, 2004
Dr. Carlson's medical interests include internal medicine, pediatrics, and preventative care.
Dr. Carlson is married with two children. He enjoys telemark skiing, running, camping, and playing with his kids.
R. Fletcher Colwell, M.D.
Board Certified by the American Board of Family Medicine
Sports Medicine Certificate of Added Qualification
Practicing Medicine in the Grand Valley since 2009
Doctor of Medicine, The University of Washington School of Medicine, 2009
Bachelor of Arts in Anthropology, Emory University
Clinical Faculty, St. Mary’s Family Medicine Residency Program
Diplomate, American Academy of Family Physicians
Dr. Colwell’s medical interest focuses on musculoskeletal diagnosis and treatment and includes preventative medicine and the vast spectrum of primary care.
Dr. Colwell is married with two children. He enjoys following where the river leads and exploring the outdoors.
Elizabeth Carlson, PA-C
Board certified by the National Commission on Certification of Physician Assistants
Practicing medicine in the Grand Valley since 2009
Master’s of Clinical Medical Science in Physician Assistant Studies, Barry University, 2008
Bachelor of Science in Combined Sciences with a minor in Spanish, Santa Clara University, 2003
Liz’s medical interests include bone health, including fracture prevention and managing osteoporosis, orthopedic spine management, and preventative care in family medicine. She is bilingual in Spanish.
Liz is married to Appleton Clinics physician Dr. Dave Carlson. As a family of four, they enjoy exploring all things outdoors that the western slope has to offer including hiking, skiing, mountain biking, and camping. She also enjoys cooking, traveling, and doing yoga.
Elizabeth Carlson PA-C will join Appleton Clinics in late November 2024.
Jill Hilty, M.D.
Board Certified by the American Board of Family Medicine
Doctor of Medicine degree, University of Colorado School of Medicine (1993)
Assistant Clinical Professor of Family Medicine at the University of Colorado School of Medicine 1997-present
Co-chairperson of Continuing Medical Education for St. Mary's Hospital 2004-present
Board Member for West Springs Hospital 2013-2016
Diplomate, American Academy of Family Physicians
Dr. Hilty has particular interests in dermatology, adolescent medicine and mental health.
Dr. Hilty is married with three children. She enjoys skiing, hiking and painting. She maintains a limited schedule at Appleton Clinics.
Jared Barjenbruch, PA-C
QuickCare™ Director
Board certified by the National Commission on Certification of Physician Assistants
Masters of Physician Assistant Studies, University of Nebraska Medical Center, 2014
Bachelor of Science in Fisheries and Wildlife with minor in Mathematics, University of Nebraska-Lincoln, 2012
Jared’s medical interests include acute care management, orthopedics, and antibiotic stewardship. He enjoys outdoor adventures with his wife and two dogs including camping, backpacking, hiking, and traveling. Jared also enjoys running, mountain biking, hunting, and fishing.
Alyson J. Weirich PA-C
Board Certified by the National Commission on Certification of Physician Assistants
Three years as a Hospitalist Physician Assistant
Masters of Medical Science in Physician Assistant Services from Midwestern University
Bachelor of Biological Science, minor in Biomedical Sciences from Colorado State University
Alyson’s medical interests include internal medicine, acute care, and neurology. She is married with one son and enjoys camping, crocheting, time with her family, and working on their bison ranch.
Julie Kissner, FNP-C
Board Certified by the American Association of Nurse Practitioners
Masters of Science in Nursing, Family Nurse Practitioner, Maryville University, 2020
Bachelors of Science in Nursing, University of Northern Colorado, 2006
Julie’s medical interests include women’s health, trauma and emergency medicine, as well as health education. She is married with one young daughter. In her free time, she enjoys baking, reading, traveling, helping with the family cattle operation and coaching her daughter’s athletics.
Patrick Pick PA-C
Board Certified by the National Commission on Certification of Physician Assistants
Master of Physician Assistant Studies, University of Nebraska Medical Center, 2014
Bachelor of Science in Biology with Minor in Biochemistry, Northwest Missouri State University
Patrick’s medical interest include acute care management, dermatology, otolaryngology, and minor surgical procedures. He enjoys hiking, skiing, and traveling with his wife and two kids. He also enjoys golfing, fishing, and biking.
Our Board Certified Family Physicians Have Over 80 Years of Experience Taking Care of Families Just Like Yours.
As a patient, the choice of your health care provider is always your choice. Craig A. Gustafson, M.D., P.C. (“CAG”) is the health care provider for Appleton Clinics GJ, LLC members. As a member of Appleton Clinics GJ, LLC your patient records will continue to be kept at Appleton Clinics under the supervision of CAG (your provider) and in accordance with Colorado law. Patients wishing to access their records, or who have any other questions regarding care, or who are needing to reach their provider (CAG), may reach us during normal business hours at 970.242.1566.