Our Faculty

Hilary F. Ryder, M.D., M.S., FACP, FHM, HEC-C

Texas Health Fort Worth Internal Medicine Residency Program Director

Hilary F. Ryder, M.D., MS, FACP, FHM, is director of the Internal Medicine Residency Program at Texas Health Harris Methodist Hospital Forth Worth. She is professor of medicine at the TCU and UNTHSC School of Medicine in Fort Worth, Texas, and adjunct faculty of The University of North Texas Health Science Center at Fort Worth. She is board-certified in internal medicine and works clinically as a hospitalist.

Dr. Ryder earned a bachelor’s degree in sociology from the University of Chicago. She worked as a geneticist before receiving her medical degree from Yale University School of Medicine. She completed her residency training at Dartmouth-Hitchcock, joining the Geisel School of Medicine faculty as a hospitalist. She earned a master’s of science through The Dartmouth Institute. Dr. Ryder served as the clerkship director of the core internal medicine clerkship at Geisel School of Medicine and associate program director and then program director of the Internal Medicine Residency Program at Dartmouth-Hitchcock Medical Center. She has served on committees with the Alliance for Academic Internal Medicine, Association of Program Directors in Internal Medicine and Clerkship Directors in Internal Medicine, and she completed a three-year term on the Clerkship Directors of Internal Medicine Council. She also has served as a committee member for the general internal medicine section of the Medical Knowledge Self-Assessment Program, and as a medical editor for SIMPLE, now Aquifer Internal Medicine, a cased-based third-year medical clerkship curriculum.

Dr. Ryder has a national reputation as a medical educator, and has been featured on several medical education podcasts, including The Medicine Mentors Podcast, Specialty Stories: Helping You Choose a Medical Career, and Lab Medicine Rounds. She recently spoke to Dallas NPR’s Sam Baker about North Texas physician shortages and how Texas Health is responding to this problem. She has a special interest in medical education research. Her current work focuses on the meaning and role of assessments in undergraduate and graduate medical education and understanding moral distress medical students face when encountering ethical dilemmas. Dr. Ryder also mentors students and residents with interest in medical education research and is most proud of the papers she co-authors with learners.

Dr. Ryder spends her free time with her husband Matthew and their four children. She enjoys being outdoors with her children, shopping without them, and making peanut butter and jam sandwiches from scratch by baking the bread and picking and canning the berries. She is an avid traveler, having visited more than 30 countries while living in Europe, the United Kingdom, Central America, and West, East, Central and South Africa.



Jennifer Hinkle, M.D.

Texas Health Fort Worth Internal Medicine Residency Associate Program Director

Jennifer Hinkle, M.D., is associate director of the Internal Medicine Residency Program at Texas Health Harris Methodist Hospital Fort Worth. She also is an assistant professor at the TCU and UNTHSC School of Medicine and The University of North Texas Health Science Center (UNTHSC) at Fort Worth. She is board-certified in internal medicine.

Dr. Hinkle obtained her bachelor’s degree in biology from the South Carolina Honors College at the University of South Carolina, and received her medical degree from the Medical University of South Carolina in Charleston, South Carolina. She completed residency training at UT Southwestern Medical Center in Dallas, and then joined Texas Health Harris Methodist Hospital Fort Worth as a hospitalist. Dr. Hinkle then moved to outpatient medicine and works with Texas Health Physicians Group. She has served as the medical director of the Physician Associates Studies Program at UNTHSC since 2015 and has taught medical students and residents both in clinical and classroom settings.

Dr. Hinkle enjoys spending time with her husband Kip and their three children and three shelter dogs. She loves going to independent films with her friends, traveling and spending time outdoors, weather and mosquitos permitting.




Faculty
  • Oladapo Alfolabi, M.D.
    Nephrology Sub-Specialty Education Coordinator

    Dapo Afolabi, M.D., is president and CEO of Fort Worth Renal Group. He also is medical director of the dialysis unit at Texas Health Harris Methodist Hospital Fort Worth and serves as the nephrology sub-specialty education coordinator for the Internal Medicine Residency Program at Texas Health Fort Worth.

    Dr. Afolabi earned a medical degree from the University of Ife in Nigeria. He completed his residency and fellowship in Nephrology at Henry Ford Hospital in Detroit, Michigan, spending the last year as chief renal fellow. He has received advanced training in renal ultrasound, endovascular interventional nephrology and fluoroscopic-guided placement of peritoneal dialysis catheters. Dr. Afolabi is board-certified in internal medicine and nephrology. He was voted Physician of the Year at Texas Health Fort Worth in 2018, received the Shining Star Award from the Fort Worth State of the Community in 2017 and is regularly featured in Fort Worth Magazine’s “Top Doctors” list.

    Dr. Afolabi performs multi-center trials on both drug and devices in the dialysis and chronic kidney disease population and has a national reputation for mentoring nephrology fellows who wish to enter private practice.

    In his spare time, Dr. Afolabi enjoys medical mission work. He also served as the team physician for the Nigerian Contingent for the 1996 Summer Paralympic Games held in Atlanta.

  • Jennifer Arnouville, D.O.
    Geriatrics Sub-Specialty Education Coordinator

    Jennifer Arnouville, D.O., is assistant professor at TCU and UNTHSC School of Medicine and an adjunct assistant professor at The University of North Texas Health Science Center (UNTHSC). She is the geriatrics sub-specialty education coordinator for the Internal Medicine Residency Program at Texas Health Harris Methodist Hospital Fort Worth.

    She graduated from Louisiana Tech University with a bachelor’s degree in animal biology and gerontology, and completed her medical training at Texas College of Osteopathic Medicine at UNTHSC. She spent her internship and residency in family medicine at Methodist Charlton Medical Center in Dallas. Following her residency training, Dr. Arnouville completed a fellowship in geriatrics at UT Southwestern Medical Center in Dallas, and is board-certified in family practice and geriatric medicine.  She serves as the medical director and chair for the Nurses Improving Care for Health System Elders (NICHE) program at Texas Health Harris Methodist Hospital Fort Worth.

    She has had a long-standing interest in aging. Dr. Arnouville has been voted a “Top Doctors” for Geriatric Medicine by readers of Fort Worth Magazine since 2012, and a “Top Doc” for Geriatric Medicine in 360 West magazine since 2017. Dr. Arnouville enjoys spending time with her husband and two children, reading, attending live music in small venues, travelling the southeastern United States, and experiencing the dining scene in Fort Worth.

  • Sonia Bajaj, M.D.
    Rheumatology Sub-Specialty Education Coordinator

    Dr. Sonia Bajaj is the rheumatology sub-specialty education coordinator for the Internal Medicine Residency Program at Texas Health Harris Methodist Hospital Fort Worth.

    She earned her medical degree at Gandhi Medical College in Bhopal, India, and completed her internship at Monmouth Medical Center before transferring to the University of Alabama at Birmingham for residency and fellowship in Rheumatology. She is board-certified in internal medicine and rheumatology.

    Dr. Bajaj enjoys teaching, and has given Rheumatology Grand Rounds at Tucson Medical Center and the University of Alabama at Birmingham. Dr. Bajaj is in solo practice, and has been voted one of Fort Worth’s “Top Doctors” by readers of Fort Worth Magazine for the past 11 years. In her spare time, Dr. Bajaj enjoys spending time with her husband and two sons, traveling internationally and planting perennials in her gardens.

  • Gurpreet Baweja, M.D.
    Cardiology Sub-Specialty Education Coordinator

    Gurpreet Baweja M.D., FACC, FASE, FSCAN, is the division chief of staff for cardiology at Texas Health Harris Methodist Hospital Fort Worth and the cardiology sub-specialty coordinator for the Internal Medicine Residency Program at Texas Health Fort Worth.

    Dr. Baweja received his medical degree from King George’s Medical College in Lucknow, India. Following residency in India, Dr. Baweja completed additional residency training at SUNY Downstate Health Sciences University in Brooklyn, New York. Dr. Baweja completed fellowships in cardiovascular disease and interventional cardiology at the University of Arizona Sarver Heart Center in Tucson, Arizona.

    Dr. Baweja is board-certified in cardiovascular diseases, nuclear cardiology, echocardiography and interventional cardiology, and is board-eligible in vascular medicine (endovascular examination). He has also received training in advanced cardiac imaging, including Level III Certification. Dr. Baweja is an active participator and lead investigator on trials involving cardiovascular disease, medications and devices.

  • John Hollingsworth, M.D.
    Pulmonary and Critical Care Sub-Specialty Education Coordinator

    John W. Hollingsworth II, M.D., FCCP, is medical director for critical care and pulmonary and critical care sub-specialty education coordinator. He completed undergraduate studies in biology at Colorado College in Colorado Springs and received his medical degree at the University of Texas Medical Branch (UTMB) Galveston. Dr. Hollingsworth completed his internship and residency training and served as chief resident at UTMB Galveston. He also completed a fellowship in pulmonary and critical care at Duke University Medical Center in Durham, North Carolina, where he served as assistant and then associate professor of medicine.

    Dr. Hollingsworth has been awarded multiple R-01 grants to study various aspects of pulmonary immunity and inflammation from the National Institutes of Health (NIH). He also led an NIH-funded basic science laboratory while at Duke University, where he actively mentored students in basic science research. He has published more than 60 articles in peer-reviewed journals, and lectures nationally and internationally on pulmonary innate immunity and airway inflammation. Most recently, he has been involved in clinical research on COVID-19 pneumonia. Dr. Hollingsworth is board-certified in internal medicine, pulmonary disease and critical care medicine.

    Dr. Hollingsworth is a member of the American Thoracic Society, American Association of Immunologists, American Association for the Advancement of Science, American Society of Clinical Investigators, Texas Medical Association and the Tarrant County Medical Society. He has been nominated a “Top Doctors” by readers of Fort Worth Magazine since 2018.  In his free time, Dr. Hollingsworth enjoys spending time with his wife and three children at their lake house.

  • Raj R. Halker, M.D.
    Internal Medicine Division Chair

    Dr. Raj Halker is the division chair of Internal Medicine at Texas Health Fort Worth. He received his medical degree from Bangalore Medical College in Bangalore‚ India. He completed internship and residency programs at Michigan State University in Kalamazoo‚ Michigan, followed by a fellowship in nephrology with interventional nephrology training at Saint Louis University and John Cochran VA Hospital in Saint Louis‚ Missouri. Dr. Halker also earned a master of public health degree in epidemiology from the University of Alabama at Birmingham. Dr. Halker is board-certified in both internal medicine and nephrology by the American Board of Internal Medicine.

    Dr. Halker is a member of the Texas Medical Association‚ Tarrant County Medical Society‚ the American Society of Nephrology‚ the American Society of Diagnostic and Interventional Nephrology and the Renal Physicians Association.

  • Zakraus Mahdavi, M.D.
    Neurology Sub-Specialty Education Coordinator

    Dr. Zakraus Mahdavi is assistant professor at the TCU and UNTHSC School of Medicine and clinical assistant professor of neurology at UT Southwestern Medical Center in Dallas. He serves as the neurology sub-specialty education coordinator for the Internal Medicine Residency Program at Texas Health Harris Methodist Hospital Fort Worth.

    Dr. Mahdavi graduated with a degree in computer science and neurobiology from The University of Texas at Austin and received his medical degree from the University of Texas Medical Branch Galveston. Dr. Mahdavi completed his residency and chief residency training in neurology and fellowship in neurocritical care at UT Southwestern Medical Center.

    Dr. Mahdavi is board-certified by the American Board of Psychiatry and Neurology in neurology, by the American Society of Neuroimaging in neurosonology and by the United Council for Neurological Subspecialties in neurocritical care. Dr. Mahdavi is a member of the American Academy of Neurology and Texas Medical Association.

  • Cheryl McDonald, M.D.
    Infectious Disease Sub-Specialty Education Coordinator

    Dr. Cheryl McDonald is a founding partner of Tarrant County Infectious Disease Associates, and is the infectious disease sub-specialty education coordinator for the Internal Medicine Residency Program at Texas Health Harris Methodist Hospital Fort Worth.

    Dr. McDonald was born and raised in Fort Worth. She received her bachelor’s degree in biology from Vanderbilt University in Nashville, Tennessee, where she graduated magna cum laude, and earned her medical degree from UT Southwestern Medical Center in Dallas. She completed her internal medicine residency at the University of Alabama at Birmingham and her infectious disease fellowship at the University of Colorado Health Science Center in Denver, where she was on faculty.  She is board-certified in infectious disease.

    Dr. McDonald enjoys caring for patients of diverse backgrounds, and is active in supporting the HIV community. She has served on the board of directors for the AIDS Outreach Center since 2007 and conducts multi-center trials. Dr. McDonald is deeply committed to the community of Fort Worth and has served in numerous leadership capacities at Texas Health Fort Worth, including serving as chief of medical staff and as a member of the board of trustees. She has been featured as one of Fort Worth Magazine’s “Top Doctors” for many years. In her spare time, she enjoys spending time with her family, reading and travelling.

  • Sanjay Oommen, M.D.
    Hematology/Oncology Sub-Specialty Education Coordinator

    Dr. Sanjay Oommen is the hematology/oncology sub-specialty education coordinator for the Internal Medicine Residency Program at Texas Health Harris Methodist Hospital Fort Worth. He received his medical degree with high honors from Kasturba Medical College in Mangalore, India. He completed his internship and residency in Internal Medicine at Texas Tech University Health Sciences Center at El Paso, where he also served as chief resident. Following his chief residency, Dr. Oommen completed his fellowship in oncology, hematology and transplant at the University of Minnesota in Minneapolis.

    Dr. Oommen has a strong interest in clinical research and is a member of the breast cancer committee for the U.S. Oncology Network, and is an active member of the cancer committee at Texas Health Harris Methodist Hospital Fort Worth.

    Dr. Oommen was inducted to the Alpha Omega Alpha Honor Medical Society in 2003 and is a member of the American Society of Clinical Oncology, American Society of Hematology, Texas Medical Association and the Tarrant County Medical Society. Dr. Oommen has been listed as a “Top Doctors” in Fort Worth Magazine since 2011.

  • Zeeshan Ramzan, M.D.
    Gastroenterology Sub-Specialty Education Coordinator

    Dr. Ramzan is associate professor of medicine at the TCU and UNTHSC School of Medicine in Fort Worth, Texas, and is the gastroenterology sub-specialty coordinator for the Internal Medicine Residency Program at Texas Health Harris Methodist Hospital in Fort Worth. Prior to joining Texas Health Digestive Care, Dr. Ramzan served as assistant professor in the Division of Digestive and Liver Diseases at UT Southwestern Medical Center in Dallas, and as director of the interventional endoscopy program at the Dallas VA Medical Center.

    Dr. Ramzan completed his medical education at King Edward Medical University in Lahore, Pakistan. He completed his internal medicine residency at Abington Memorial Hospital in Abington, Pennsylvania. Dr. Ramzan completed his fellowship in gastroenterology and hepatology and advanced fellowship in esophageal and gastrointestinal motility at Temple University Hospital, in Philadelphia, Pennsylvania, and then an advanced interventional endoscopy fellowship at Northwestern University Hospital in Chicago, Illinois. He is board-certified in internal medicine, gastroenterology and hepatology.

    Dr. Ramzan’s areas of focus include gastrointestinal tumors, benign and malignant esophageal, biliary and pancreatic diseases, and treatments incorporating interventional endoscopy. He is a fellow of the American College of Physicians, American College of Gastroenterology, American Gastroenterology Association and the American Society of Gastrointestinal Endoscopy (ASGE).

    Dr. Ramzan has served on many national committees, including his role as vice chair of the DDW Annual Scientific Program Committee (Esophagus) of the ASGE in 2019 and 2020, and as chair of the DDW Annual Scientific Program Committee (Esophagus) of the ASGE in 2020 and 2021.

    In his free time, he likes to spend time with family and friends, travel and help refugee families in DFW Metroplex.

  • Dave Spear, M.D.
    Emergency Medicine Sub-Specialty Education Coordinator

    Dr. Dave Spear is a founding professor for the TCU and UNTHSC School of Medicine and clinical assistant professor at UT Southwestern Medical Center in Dallas, Texas. He is director of the emergency medicine program in trauma and procedures at Texas Health Fort Worth, and also serves as faculty for Parkland Hospital and Children’s Medical Center Dallas. He is the emergency medicine sub-specialty education coordinator for the Internal Medicine Residency Program at Texas Health Harris Methodist Hospital Fort Worth.

    Dr. Spear received his bachelor’s degree in mathematics and physics at Albion College in Albion, Michigan. He then earned his medical degree at Wayne State School of Medicine in Detroit, Michigan. Dr. Spear completed an internship and residency in internal medicine at Presbyterian/St. Luke’s Medical Center in Denver, Colorado, before completing his residency in emergency medicine at the University of Mississippi Medical Center in Jackson.

    Dr. Spear is passionate about innovating and improving processes around clinical ultrasound and fluoroscopy. He has authored numerous book chapters and papers about clinical ultrasound and speaks nationally on this topic. He has won multiple awards for his work in teaching residents and fellows.

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Stethoscope and Pen
Curriculum

The curriculum for the Internal Medicine Residency Program at Texas Health Fort Worth provides residents with comprehensive exposure to all aspects of internal medicine.

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