913-495-9600 PROUD TO SERVE THE KC AREA FOR 50 YEARS HOME THE PHYSICIANS FORMS PREPS RESOURCES CONTACT US LOCATIONS PATIENT PORTAL PAY NOW The Physicians The Physicians Forms Preps Resources Contact Us Locations Patient Portal Pay Now James A. Mavec, MD Dr. James Mavec received his undergraduate degree from Creighton University in 1985. He received his medical degree from the University of Kansas School of Medicine in 1989. He completed his residency at the University of Kansas Department of Medicine and his fellowship at the University of Kansas Division of Gastroenterology in 1994. He joined Gastrointestinal Associates in 1994. Jeffrey L. Young, MD Dr. Jeffrey Young received his undergraduate degree from the University of Illinois with a Bachelor of Science in Biology. He received his medical degree from the University of Kansas Medical School in 1989. He then completed a third-year residency in internal medicine at Evanston Hospital at Northern University in 1992. He served as Chief Resident of Internal Medicine at Evanston Hospital. He completed a fellowship in gastroenterology at the University of Kansas Medical Center in 1995. He joined Gastrointestinal Associates in 1995. Randal L. Brown, MD Dr. Randal Brown received his undergraduate degree from the University of Kansas. He received his medical degree from the University of Kansas School of Medicine in 1992. He completed his internship and residency at the University of Kansas Medical Center and completed a fellowship in the Division of Gastroenterology and Hepatology from the University of Kansas Medical Center in 1999. He joined Gastrointestinal Associates in 1999. Jon Christopher Nichols, MD Dr. Jon Christopher Nichols received his undergraduate degree from Marymount College in 1983. He received his medical degree from the University of Kansas School of Medicine in 1987. He was a Resident in the Department of Medicine at St. Luke's Hospital in Kansas City, Missouri. He was Chief Resident at the University of Missouri-Kansas City and then a Fellow at Mayo Graduate School of Medicine Division of Gastroenterology in Rochester, Minnesota. He joined Gastrointestinal Associates in 2001. Christian C. McElhinney, MD Dr. Christian McElhinney received his undergraduate degree from the University of Kansas. He received his medical degree from the University of Kansas School of Medicine in 1995. He completed a year of general surgery at Creighton University School of Medicine followed by a year as a Research Resident at the University of Missouri, Kansas City, Dickson-Diveley Midwest Orthopaedic Clinic. He completed his residency in internal medicine at the University of Kansas School of Medicine in 2000 and his gastroenterology fellowship in 2003. He has been with Gastrointestinal Associates since 2003. John B. Sturgeon, MD Dr. John B. Sturgeon received his undergraduate degree from University of Kansas in 1985. He received his medical degree from the University Of Kansas School of Medicine in 1989. He completed his residency at the University of Kansas Medical Center, Department of Internal Medicine and completed his gastroenterology fellowship at the University of Kansas, Division of Gastroenterology in 1994. He is board certified with the American Board of Internal Medicine in the subspecialty of Gastroenterology. He joined the Sunflower Medical Group in 1994 where he practiced gastroenterology until 2000. He then practiced as a solo practitioner until he joined Gastrointestinal Associates in 2011. Dr. Sturgeon enjoys taking care of patients 18 years old and older, with the goal of providing quality care in a compassionate manner. He believes in providing both diagnostic and treatment options so patients can choose what is best for them. In his personal life, Dr. Sturgeon is very active in his church, Village Presbyterian Church. He has served on the pastor search committee and as a deacon. Donald J. Martin, MD Dr. Donald J. Martin is a Kansas City native. He received his undergraduate degree from Boston College and his medical degree from Creighton University. He completed his Residency in Internal Medicine at Wright-Patterson Medical Center in Dayton, Ohio. Dr. Martin achieved the rank of Major and served four years overseas in the Medical Corps of the United States Air Force. He completed his Fellowship in Gastroenterology at the University of Texas Southwestern in Dallas, Texas. He joined Gastrointestinal Associates in 2016. Scott Robert Holmes, DO Dr. Holmes received his undergraduate degree from the University of Kansas with a Bachelor of Science in Microbiology. He received his medical degree from Kansas City University of Medicine and Bioscience. His Internal Medicine Residency and his Geriatric and Gastroenterology Fellowships were completed at Saint Louis University and Saint Louis University Medical Center. Dr. Holmes is Board Certified in Internal Medicine. Kelci Gillenwater, APRN Kelci Gillenwater holds degrees from Baker University where she graduated Summa Cum Laude and received the Who’s Who Among American Universities and Colleges Award. She holds a Master of Science in Nursing from the University of Kansas School of Nursing in the Family Nurse Practitioner Program. Kelci has experience as an Intensive Care Unit Registered Nurse as well as Surgery Center Charge Nurse. Kelci has also cared for patients as a Family Nurse Practitioner in Pain Medicine , Acute Care and Primary Care. Kelci joined Gastrointestinal Associates in 2015. Celeste McGlamery, MSN, APRN Celeste McGlamery holds degrees from Baker University School of Nursing where she graduated Summa Cum Laude, as well as her Master of Science in Nursing in the specialty of Family Nurse Practitioner from Fort Hays State University. Celeste has experience as a Cardiac Care Nurse as well as significant Gastroenterology training with Gastrointestinal Associates where she joined in July of 2017. Michelle Fernandez, APRN Michelle Fernandez holds a Bachelor of Science Degree from the Nursing School of Mid-America Nazarene University, as well as a Master's of Science in Nursing from the University of Kansas Medical Center. She is licensed in both Missouri and Kansas as a Registered Nurse and as an Advanced Practitioner Registered Nurse, APRN. Michelle has extensive experience in the specialty of Gastroenterology dating from 1998 to currently, when she joined Gastrointestinal Associates in August of 2017. 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