USMD Holdings, Inc. ( NASDAQ: USMD), a physician-led integrated healthcare system, announced today that four new physicians — Lauri Ballard, M.D.; Joel Brown, M.D.; Carolyn Lentzsch-Parcells, M.D.; and Mark Prince, M.D. — have joined USMD Affiliated Services. These new physicians have been added to support the growing healthcare needs of the communities USMD serves.

“I am pleased to welcome these four physicians to USMD,” said John House, M.D., chairman and chief executive officer of USMD Holdings. “The DFW area is growing rapidly and adding these physicians will allow USMD to continue providing our patients with the high-quality, affordable and personalized medical care that they have come to expect from USMD.”

The addition of Dr. Prince brings a new specialty, gastroenterology, to USMD. Adding this new specialty will allow USMD to further provide its patients with highly coordinated care within one health system.

Dr. Ballard joins USMD’s team of geriatric medicine physicians and brings the total number of physicians at USMD accepting Medicare to 99, further strengthening USMD’s commitment to caring for and serving the senior population across the Dallas-Fort Worth area.

More about USMD’s new physicians:

Dr. Lauri Ballard will practice at USMD’s Dr. David Pillow Senior Health Clinic, a partnership with North Hills Hospital, in North Richland Hills, Texas. She completed her fellowship in geriatric medicine at University of Texas Southwestern, her residency in internal medicine at Methodist Dallas Medical Center and received her medical degree at University of Texas Southwestern. Dr. Ballard has more than 11 years of experience caring for patients.

Dr. Joel Brown will practice at USMD’s West Plano Clinic. He completed his residency in internal medicine at Methodist Dallas Medical Center and received his medical degree at Thomas Jefferson University Jefferson Medical College. Dr. Brown has more than 40 years of experience caring for patients in the community of Plano, Texas.

Dr. Carolyn Lentzsch-Parcells will practice at USMD’s Las Colinas MacArthur Clinic. She completed her residency in pediatrics and received her medical degree at Baylor College of Medicine. Dr. Parcells has more than three years of experience working as a pediatrician and nearly three years of experience serving as an assistant professor at University of Kentucky in the Department of Pediatrics, Division of Adolescent Medicine.

Dr. Mark Prince will practice at USMD’s new Arlington South Specialty Care Clinic. Dr. Prince completed his fellowship in gastroenterology and his residency in internal medicine at University of Kentucky Chandler Medical Center. He received his medical degree at University of Kentucky. He has more than 12 years of experience working at a gastroenterology practice in Tennessee.

About USMD Holdings, Inc.

USMD is a publicly held (NASDAQ: USMD), physician-led, integrated health system committed to exemplary patient care. Headquartered in Irving, Texas, USMD serves the Dallas-Fort Worth metropolitan area with more than 250 physicians and associate practitioners, and provides healthcare services to patients in just under 20 different specialties at its two hospitals, nine cancer treatment centers and nearly 70 physician clinics, many of which are multi-specialty. All 29 of USMD’s primary care clinics have been accredited by the Patient-Centered Medical Home Program, a recognition program that is part of the National Committee for Quality Assurance. This recognition means that USMD’s primary care clinics successfully display and utilize evidence-based, patient-centered processes that focus on highly coordinated patient care and long-term patient relationships. For more information about USMD, visit

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