The Be Well MD medical team is comprised of clinicians who are uniquely qualified in caring for older adults, using the latest medical advancements combined with compassion and dedication to seniors.

Mark Carlson, MD

Dr. Carlson is a fellowship-trained, board-certified geriatrician, internist and oncologist with almost 30 years of healthcare experience. He received his medical doctorate from Loma Linda University in California and completed his geriatric medicine fellowship at the University of Hawaii in Honolulu.

Prior to his move into geriatrics, Dr. Carlson spent nearly 20 years of practice in medical oncology, where serious illness had to be managed with the latest in medical technology, compassion and a trusting patient-doctor relationship. Dr. Carlson combined this experience with his strong desire to help seniors in the aging process to create Be Well MD, an in-home medical service designed specifically for older adults.

Be Well MD incorporates the highest quality medical care and also ensures patients have consistent, convenient access to the care they need and desire. Dr. Carlson’s personal mission is to help seniors live healthier and happier lives.

Allen Sonstein, MD

Dr. Allen Sonstein has vast experience in caring for older adults. He has a passion for it and it shows. As a board-certified internal medicine physician, Dr. Sonstein has dedicated his work to helping adults maintain healthy lifestyles and manage chronic conditions and supporting them through the aging process. Born and raised on the East Coast, Dr. Sonstein moved to Texas to practice in Waelder, Texas, a medically indigent area. He opened his Internal Medicine practice in Austin in 1978 where he practiced for 42 years. Throughout his career, he also served on the faculty of The University of Texas Medical Branch at Galveston and traveled on many medical mission trips to Central America. He currently serves on the volunteer faculty at the Dell Medical School where he spends time at the student-run clinic for the homeless.

Jason Spees, APRN, FNP-C, L.Ac

As a certified family nurse practitioner, Jason’s clinical skills complement the Be Well MD mission. Jason is an alumnus from the University of Texas, where he is on faculty in the School of Nursing. Jason began his journey in medicine as an EMT in New Orleans. There he practiced as a paramedic and assisted with medical needs during hurricane Katrina. He became a registered nurse and was drawn to a holistic and person-centered intention in medicine. Jason pursued Chinese medicine and became a licensed acupuncturist. He is skilled in herbal therapy and acupuncture needling. Wanting more from the world of science, Jason attained a Master’s degree in nursing and became a nurse practitioner. His medical background includes family practice, emergency medicine, chronic pain and rehab, hospice and palliative care and skilled nursing. He enjoys a healthy lifestyle as well as dining out, art shows, live music, and volunteering. Jason strives to combine science and holism in caring for his patients at Be Well MD.