Radiologist Team

  • Dr. Edward Fritsch

    Dr. Edward Fritsch

    IRIS Radiology

    Dr. Fritsch is a graduate from the University of Texas at Austin. After graduating with honors from Texas Chiropractic College (TCC), he went on to complete a residency diagnostic imaging. This residency was a unique program between TCC and the Veterans Administration Medical Center in Houston. Additionally, Dr. Fritsch has completed multiple visiting fellowships in MRI as well as visiting internships in orthopedics and neurosurgery. Dr. Fritsch continued as a radiology professor at TCC from 1993 until 2008, where he ended his tenure as Department Head of Diagnostic Imaging. He has served as a postgraduate faculty member of Texas Chiropractic College since 1989. Since 1997, Dr. Fritsch has been CEO & Owner of Houston MRI & Diagnostic Imaging ( and is also the founding partner of IRIS Radiology (

  • Dr. Michael Gilbert

    Dr. Michael Gilbert

    IRIS Radiology

    Dr. Gilbert graduated magna cum laude from Texas Chiropractic College in 2004. He completed his residency in diagnostic imaging at Parker University in 2007, during which time he earned Diplomat status with the American Chiropractic Board of Radiology (ACBR). Prior to his current position with IRIS Radiology, he served as assistant professor of radiology at Parker University for six years during which time he also held the position of director of the diagnostic imaging residency from 2008 to 2011. Dr. Gilbert is member-at-large for the ACBR as well as an active member of the American Chiropractic Association, Texas Chiropractic Association, and the American College of Chiropractic Radiology. Additionally, Dr. Gilbert is a veteran of the United States Army.

  • Dr. Robert Longenecker

    Dr. Robert Longenecker

    IRIS Radiology

    Dr. Longenecker graduated magna cum laude from Cleveland College of Chiropractic Kansas City, Missouri, in 1982 where he also completed his residency in diagnostic radiology. He completed visiting fellowships in CT and MRI of the musculoskeletal system and spine at ProScan MRI Education Foundation, Cincinnati, Ohio, and Carol Stream Imaging in Chicago, Illinois. Past positions include Chairman, Department of Radiology, Parker College of Chiropractic; Chairman of Radiology, Texas Chiropractic Association; advisory position with the Medical Radiological Technologists, Texas Department of Health’ past President of the American Chiropractic College of Radiology. Dr. Longenecker is a contributing author of “Essentials of Skeletal Radiology”.