• Our Specialist

    Our specialists work with you before, during and after surgery. Wherever
    you are in the surgical process, a DIMG physician is making important
    decisions with your unique goals and healthcare needs in mind.

  • Before and After

    Perioperative care is an integral part of any planned surgery. By identifying
    the common factors that cause complications, we can help you manage your
    risk and recovery while improving the quality of your hospital stay.

  • Dallas

    Dallas Fort Worth hospitals consistently win top spots on the US News and
    World Report Best 100 rankings. Dallas draws the world’s leading healthcare
    specialists, making it a center for easy access to excellent care.

  • Leading Surgeons

    The Dallas Internal Medicine Group works with the leading surgeons
    at Texas Health Presbyterian Hospital of Dallas, Methodist Hospital for Surgery
    and North Central Surgical Center


Dallas Internal Medicine Group was formed in 1997 by its founder, Dr. Robert Paul Fischer. He is joined by Dr. Karishma Khan, Dr. Jonathan Posey, Dr. Gail Crear and Dr. Marriam Ali. They are board certified physicians. Together, they devote their time to peri-operative care and to the care of hospitalized patients. Dallas Internal Medicine Group has dedicated over a decade to providing quality peri-operative care to patients and surgeons from the subspecialties of Orthodpedics, General Surgery, Spine Surgery and Neurosurgery.

In healthcare, quality is the differentiator that enhances peace of mind and facilitates positive outcomes. As your medical provider, you entrust with us your greatest asset – your health. That trust is one we take seriously.