About
Dr. Brian Birdwell is a board-certified internist and lifelong Oklahoman who has practiced in Lawton since 2001. He earned his Bachelor of Arts from Yale University before completing his medical degree and Internal Medicine residency at the University of Oklahoma Health Sciences Center. He later pursued a vascular medicine fellowship at the University of Oklahoma and trained in clinical epidemiology at the Uniformed Services University in Bethesda, Maryland.
S. Army and spent a year at the first hospice in the United States. He brings more than 20 years of occupational medicine experience to his practice, including service as medical director for McBride Occupational Medicine in Oklahoma City and 11 years as medical director and plant physician for Goodyear Tire and Rubber Co. in Lawton. He is passionate about wound care, pulmonary medicine, vascular medicine, and epidemiology. Dr. Birdwell introduced the direct primary care membership model to southwest Oklahoma and remains an active voice on evidence-based medicine and public health. He gives members his personal cell phone number for direct after-hours contact.
Education & Training
Undergraduate
Yale University, B.A.
Medical School
University of Oklahoma Health Sciences Center
Residency
Internal Medicine, University of Oklahoma Health Sciences Center
Fellowship
Vascular Medicine, University of Oklahoma; Clinical Epidemiology, Uniformed Services University, Bethesda, Maryland
Additional Training
Six years as a medical doctor in the U.S. Army; Year at the first hospice in the United States
Certifications
Conditions Treated
Who is Dr. Birdwell right for?
Dr. Birdwell suits adults managing chronic conditions such as hypertension, diabetes, cardiovascular disease, or sleep apnea. Patients who need ongoing wound care or have pulmonary concerns benefit from his specialized training. Workers and employers seeking occupational medicine, injury care, or fitness evaluations will find deep expertise here. He also works well with patients who value direct, unhurried access to their physician.
Frequently Asked Questions
Dr. Birdwell treats a broad range of primary care and chronic disease conditions. His clinical focus includes hypertension, diabetes, cardiovascular disease, sleep apnea, pulmonary conditions, and wound care. He also manages occupational injuries and provides preventive medicine for members at all stages of life.
Yes. Dr. Birdwell holds board certification in Internal Medicine. He completed his residency at the University of Oklahoma Health Sciences Center and pursued additional fellowship training in vascular medicine and clinical epidemiology.
Dr. Birdwell earned his undergraduate degree at Yale University. He completed his medical degree and Internal Medicine residency at the University of Oklahoma Health Sciences Center. He later trained in vascular medicine at the University of Oklahoma and in clinical epidemiology at the Uniformed Services University in Bethesda, Maryland.
Yes. Dr. Birdwell brings more than 20 years of occupational medicine experience. He served as medical director for McBride Occupational Medicine in Oklahoma City and spent 11 years as medical director and plant physician for Goodyear Tire and Rubber Co. in Lawton.
Dr. Birdwell gives members his personal cell phone number for direct contact. Members can reach him by phone, text, or email outside of regular office hours. This direct access is a core part of how he practices at MainStreet Clinic.
Dr. Birdwell practices what he calls person-to-person care. He structures visits to last up to 45 minutes so he can address issues thoroughly. He grounds his philosophy in three principles: eating real food, getting regular exercise, and having access to real care.
Yes. Dr. Birdwell offers house calls through the House Calls Direct program. Members who enroll in this extension service receive all standard membership benefits plus in-home visits. A proximity discount applies for members at select senior living locations.
Yes. S. Army. He also spent a year working at the first hospice in the United States, experience that deepened his approach to whole-person care.
Dr. Birdwell sees individuals and families of all ages, with or without insurance. He treats patients managing chronic disease, workers dealing with occupational injuries, and adults focused on prevention. His practice welcomes uninsured patients as well as those with private insurance or Medicare.
Doctor profile last updated April 10, 2026