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Dr. Mario Quintanilla's career spans emergency care, medical leadership, and physician education. Bellaire ER's Chief Medical Director trained in family and internal medicine after studying at Rice University and UTMB, with emergency department leadership at St. Joseph Hospital and physician care for the Houston Ballet and Rice University athletes.

Dr. John K. Weinberg combines general surgery training with emergency department practice at Bellaire ER, evaluating and treating sudden illnesses and injuries. He earned degrees in biochemistry and medicine at Cornell and completed a general surgery residency at Montefiore Medical Center before practicing emergency medicine.

Dr. Michelle Chan connects emergency medicine with clinical pharmacy and aerospace medicine. Her training includes chief residency at Baylor College of Medicine and UTMB's aerospace medicine residency, pediatric hematology/oncology pharmacy, community emergency care, and remote medicine at McMurdo Station, Antarctica.

Dr. Anthony Hoang Phi has cared for Texas patients for more than 25 years across acute illness, emergency medicine, chronic conditions, and preventive care. He studied at the University of Houston and completed his medical degree and internal medicine residency at UTHealth Houston.

Dr. Syed Navaid Zaidi is a family medicine physician serving Houston-area and Texas patients with a focus on adult family healthcare, acute illness management, and geriatric medicine across every stage of adult life.

Dr. Thuy-Khanh Ha Bui practices family medicine and acute primary care. A graduate of Kirksville College of Osteopathic Medicine, Dr. Bui completed postgraduate clinical training at Hermann Hospital focusing on individual and family health.

Erika Navarro provides bilingual care in English and Spanish at Bellaire ER and OnPoint Urgent Care. Her 8+ years of clinical experience span emergency medicine, trauma, urgent care, and family practice after graduating from Charles R. Drew University.

Margaret Witt's clinical work spans urgent care and telehealth for patients across Texas and Louisiana. With a background in emergency care, acute triage, and chronic conditions, she earned her MSN and post-master's certificate at UT Arlington.

Afaq Ali pairs emergency room and urgent care experience with clear patient communication. He holds bachelor's degrees in Exercise Science and Nursing and an MSN from UTHealth Houston with specialized emergency and trauma training.

Tasha Grissett brings more than 20 years of clinical experience across emergency medicine, urgent care, and geriatrics. A Duke University graduate with a Master of Health Sciences in Physician Assistant Studies, she treats acute and ongoing health needs.

Irish Bautista's emergency and urgent care background includes clinical training at Houston Methodist West and Memorial Hermann Northeast, a nursing master's degree from Charles R. Drew University, and emergency/trauma training at UTHealth Houston.

Keagan Mouret cares for children and adults drawing on emergency medicine and urgent care experience. She earned her MSN at UTHealth Houston and completed a post-master's program in Emergency and Trauma Care.

Abimbola Lanipekun pairs more than 10 years of direct patient care with urgent care experience spanning infancy through adulthood. She earned bachelor's and master's degrees in Nursing and completed emergency and trauma training at UTHealth Houston.

Dr. Kevin Williams combines emergency medicine practice with fellowship training in sports medicine at Henry Ford Hospital. He trained at Georgetown and Washington University in St. Louis and serves as an instructor in Baylor College of Medicine's Department of Emergency Medicine.

Dusty Best's nursing background spans critical care, cardiac stepdown, home health, and acute urgent care. An Ohio University graduate, she completed her family nurse practitioner education at UTMB.