About
Dr. Quyen Trinh, DO, serves as Managing Physician at Mason Park Medical Clinic in Katy, Texas. He earned his Doctor of Osteopathy from Kansas City University of Medicine and Biosciences in 1996. He then completed his Family Practice residency at the University of Texas Health Science Center in 1999. Before joining Mason Park Medical Clinic, he spent nearly two decades as a physician and partner at Kelsey-Seybold Clinic. He now brings more than 28 years of clinical experience to his patients.
Dr. Trinh holds board certification in Family Medicine and certification from the American Academy of Facial Esthetics. He carries NCQA recognition in diabetes, heart/stroke, and hypertension management. Living Magazine has named him a Top Doc in 2023 and 2025. He also holds the TX Top Docs Award for 2020 through 2025 and the America's Best Doctors distinction for 2021 through 2025. His path to medicine began when his mother, Thuy Trinh, received a cancer diagnosis after the family settled in Houston following their departure from Vietnam in 1976. That experience led him to switch his major from engineering to medicine. He is fluent in Vietnamese and English. Outside the clinic, he enjoys golf, travel, gastronomy, and Marvel films. He and his wife Angela have three children: Ashley, Brandon, and Ryan.
Education & Training
Medical School
Kansas City University of Medicine and Biosciences (College of Osteopathic Medicine), DO, 1996
Residency
Family Practice, University of Texas Health Science Center, completed 1999
Certifications
Languages
English, Vietnamese
Conditions Treated
Who is Dr. Trinh right for?
Dr. Trinh works well with patients ages five and older seeking a physician who addresses root causes. Adults managing diabetes, hypertension, high cholesterol, or obesity benefit from his NCQA-recognized chronic care expertise. Patients interested in medical weight loss will find structured GLP-1 programs with provider guidance. He serves Vietnamese-speaking patients fluently. Those who value a whole-health, osteopathic approach to both prevention and chronic disease management will find a strong fit with Dr. Trinh.
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Frequently Asked Questions
Dr. Trinh treats a broad range of acute and chronic conditions for patients ages five and older. His clinical focus includes diabetes, hypertension, heart disease, high cholesterol, and obesity. He also treats acute infections, bronchitis, pneumonia, COVID-19, allergies, sleep disorders, anxiety, depression, and osteoporosis. He provides cancer screenings as part of his preventive care work.
Dr. Trinh takes an osteopathic, whole-health approach that focuses on the root cause of illness. He prioritizes evidence-based, accountable care rather than simply managing symptoms. His goal is to help patients understand their health and prevent chronic conditions before they develop.
Yes. Dr. Trinh holds board certification in Family Medicine. He also holds certification from the American Academy of Facial Esthetics. The NCQA has recognized him for excellence in diabetes, heart/stroke, and hypertension management.
Dr. Trinh earned his Doctor of Osteopathy from Kansas City University of Medicine and Biosciences in 1996. He completed his Family Practice residency at the University of Texas Health Science Center in 1999. He then spent nearly two decades as a physician and partner at Kelsey-Seybold Clinic before becoming Managing Physician at Mason Park Medical Clinic.
Dr. Trinh has received consistent recognition over the past several years. Living Magazine named him a Top Doc in 2023 and 2025 and awarded him Best Sleep Doctor in 2021, 2022, and 2024. He holds the TX Top Docs Award from 2020 through 2025 and the America's Best Doctors distinction from 2021 through 2025. Texas Magazine named him a Top Doctor in 2021 and 2022.
Yes. Dr. Trinh speaks both Vietnamese and English fluently. The Mason Park Medical Clinic website also supports Spanish, making the practice accessible to a multilingual patient community.
Yes. Dr. Trinh leads a medical weight loss program that includes GLP-1 injections such as Wegovy and Zepbound, compounded semaglutide with Vitamin B12, compounded tirzepatide with niacinamide, lipo shots, and oral medications including phentermine and Contrave. Some patients have lost as much as 70 pounds on the program.
Dr. Trinh provides acute and chronic care for patients ages five and older. He serves children, adolescents, and adults across the Katy, Fulshear, and greater Houston area.
Doctor profile last updated June 9, 2026