About
Michael Welsh, DO spent more than 20 years practicing family medicine in Montgomery and Chester counties before joining Reinvented Health. He earned his Bachelor of Science in Biology from Saint Joseph's University in Philadelphia in 1997, then completed his medical degree at Philadelphia College of Osteopathic Medicine in 2001. He finished his Family Medicine residency at St. Joseph Medical Center in Reading, PA in 2004 and holds board certification in Osteopathic Family Medicine. Most recently, he spent 13 years with Penn Medicine before bringing his full-spectrum experience to Reinvented Health.
Dr. Welsh applies the Osteopathic philosophy throughout his practice, treating patients as whole people rather than isolated conditions. He has deep roots in the Philadelphia region, including 18 years in Chester County, and values the kind of long-term patient relationships built on genuine trust. He practices proactive medicine, working to keep patients healthy rather than simply responding to illness. Away from medicine, he practices Krav Maga and Jiu Jitsu, enjoys music, history, and hiking, and shares his home with a German Shepherd, a lop-eared rabbit, his wife, and three children.
Education & Training
Undergraduate
Saint Joseph's University, Bachelor of Science in Biology (1997)
Medical School
Philadelphia College of Osteopathic Medicine (DO, 2001)
Residency
Family Medicine Residency, St. Joseph Medical Center, Reading, PA (completed 2004)
Certifications
Conditions Treated
Who is Dr. Welsh right for?
Dr. Welsh is a strong fit for adults seeking a long-term primary care relationship rooted in prevention. Patients managing chronic conditions benefit from his whole-person, Osteopathic approach. He also serves patients looking for a physician with deep roots and experience in the Chester County community. Those who want a doctor focused on keeping them healthy rather than reacting to illness will find his philosophy well matched to their goals.
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Frequently Asked Questions
Dr. Welsh earned his DO from Philadelphia College of Osteopathic Medicine in 2001 and completed his Family Medicine residency at St. Joseph Medical Center in Reading, PA in 2004. He holds board certification in Osteopathic Family Medicine. Before joining Reinvented Health, he spent 13 years with Penn Medicine and built over 18 years of experience in Chester County.
Yes, Dr. Welsh holds board certification in Osteopathic Family Medicine. He earned this certification after completing his residency at St. Joseph Medical Center in Reading, PA.
Dr. Welsh treats the full range of adult primary care conditions, including chronic disease management and preventive care. His background spans family medicine, geriatric medicine, and preventive medicine. He focuses on proactive health maintenance across all stages of adult life.
Dr. Welsh applies an Osteopathic philosophy, treating patients as whole people rather than isolated conditions. He focuses on proactive medicine, working to keep patients healthy rather than simply reacting to illness. He values long-term relationships built on genuine trust.
Yes, geriatric medicine is one of Dr. Welsh's areas of specialty. He has extensive experience managing the complex, evolving health needs of older adults. His preventive approach supports healthy aging over the long term.
Dr. Welsh has practiced in Chester County for 18 years, building deep roots in the local medical community. He spent more than 20 years in Montgomery and Chester counties combined before joining Reinvented Health DPC in Exton.
Dr. Welsh trained at Philadelphia College of Osteopathic Medicine, where he developed a whole-person approach to care. Osteopathic training emphasizes the connection between body systems, which shapes how Dr. Welsh evaluates and treats every patient.
Doctor profile last updated March 21, 2026