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Frio Regional Hospital has a staff of medical professionals ready to help, whether you need pregnancy care, emergency care or specialty care. We offer this medical expertise through a combination of permanent medical staff and a staff of visiting specialty physicians.

Permanent medical staff

Our team of permanent, on-site physicians includes:

Samer Arab, MD

Family practice/OB 
830.334.4142

Dr Arab is a board-certified family physician with obstetric fellowship training. He graduated from the medical school of Jordan University of Science and Technology, Jordan, and completed two years of general surgery at Baylor College of Medicine and New York Medical College before finishing his family practice and obstetrics training at UT Southwest, Austin, Texas.

Dr. Arab's training makes him a well-rounded physician who can handle all of your family care needs, including obstetrics and women's health and care of pediatric, adolescent, adult and geriatric patients.

Elva A. Camero, MD

Family practice/OB
830.334.4142

Dr. Camero is originally from south Texas. She graduated from the Medical College of Wisconsin in 1985 and completed her residency in family medicine in McAllen.  Dr. Camero was affiliated with the UT Health Science Center at San Antonio from 1991 to 1994.

Oscar Garza, MD

Family practice/OB
830.334.4142

Dr. Garza grew up in Encinal. He graduated from Cotulla High School and enlisted in the U.S. Navy. He served on active duty for five years and in the Naval Reserves for six years.

Dr. Garza received a BA in biology with a minor in chemistry from Texas A&M University in Kingsville. He later received his medical degree from the Medical College of Wisconsin in Milwaukee. He then completed a three-year residency in family medicine at the Texas Tech University Health Science Center in Lubbock. He has been in practice at the Family Medicine Clinic in Pearsall since 1988.

Dr. Garza currently serves as Chief of Staff at Frio Regional Hospital. He also serves as a clinical instructor with the University of Texas Health Science Center in San Antonio.

Muhammed B. Khan, MD

Internal medicine
830.334.4142

Dr. Khan is a board-certified internist specializing in the care of adults with diverse medical problems of internal organs. He diagnoses and helps patients manage complex medical problems, such as diabetes, hypertension, hyperlipedemia, heart failure, emphysema, asthma and complex metabolic issues.

Dr. Khan attended medical school at the Khyber Medical College in Peshawar, Pakistan. He completed his internship and residency in internal medicine in Brooklyn. He is a member of the Texas Medical Association.

Dr. Khan has vast experience in both outpatient and inpatient care. He has been working in the emergency room for more than 15 years, and this experience gives him the added advantage of seeing patients with acute medical problems like chest pain, acute abdominal pain, stroke, infection of different organ systems, traumatic injuries and all other conditions which need emergency care. 

Jose I. Sosa, MD

Family Practice
830.334.5856

Jose I. Sosa, MD, has been part of Frio Regional Hospital medical staff and our community since March 1999.

He attended St. Mary's University in San Antonio, UT College of Pharmacy in Austin, and then went on to receive his medical degree at the Universidad de Nuevo Leon in Monterrey, Mexico, in 1992. From 1993 to 1997 he did his family practice internship and residency at Texas Tech University School of Medicine.

His practice is located at 151 Medical Drive. Please come by and see him for all your family medical needs.

Valentine C. Ugwu, MD, FACOG

Family practice/OB 
830.334.4142

Dr. Ugwu is the director of obstetrics and newborn services. His specialties include obstetrics and primary care.

Dr. Ugwu attended medical school at Nnamdi Azikiwe Univeristy, Nigeria.  He is working on his MBA at the University of Texas, San Antonio. 


Dr. Ugwu is a fellow of the American College of Obstetricians and Gynecologists and a board-certified member of the American Board of Family Medicine. 


Dr. Ugwu is married and has one son. He is interested in women's health, health informatics and health administration. He also loves soccer, chess and Scrabble.

Visiting specialists

In order to provide a complete suite of services in our Pearsall hospital, we facilitate providers that specialize in:

  • Cardiology.
  • Hematology/Oncology.
  • Nephrology.
  • Orthopedic surgery.
  • Ophthalmology.
  • Otolaryngology (ear, nose and throat).

Each month, we publish a directory of our specialty physicians in the Frio-Nueces Current.