Dr. John Patrick SteinMD
Family Medicine
at West County Personalized Medical Care – John Patrick Stein, MD — Chesterfield, MO
About
Dr. John Patrick Stein earned his undergraduate degree in science from the University of California, Irvine in 1988. Before medical school, he completed a Master's in Cellular and Molecular Biology and a Certificate in Genetic Engineering at San Francisco State University and the University of California, San Francisco. D. from St. Louis University School of Medicine in 1995 and completed his Family Medicine residency at St. John's Mercy Medical Center/Mercy Hospital, finishing in 1998. That same year, the American Board of Family Physicians certified him, and he earned recertification in 2012.
He holds memberships in the National Lipid Association, the European Atherosclerosis Society, the European Society of Cardiology, the American Society of Preventive Cardiology, and the American Academy of Family Physicians. C. St. Louis, and the St. Louis Bandits. His clinical passions center on preventive cardiology, advanced lipid testing, nutrition as medicine, and cardiovascular risk reduction. He treats patients across the full spectrum of family medicine, including dermatology, women's health, mental health, and pediatric care.
Education & Training
Undergraduate
University of California, Irvine, B.S., 1988
Medical School
St. Louis University School of Medicine, M.D., 1995
Residency
Family Medicine, St. John's Mercy Medical Center/Mercy Hospital, 1996-1998
Additional Training
Masters in Cellular and Molecular Biology; Certificate in Genetic Engineering; San Francisco State University/University of California, San Francisco, 1991
Certifications
Conditions Treated
Who is Dr. Stein right for?
Dr. Stein suits adults who want a family physician deeply invested in long-term prevention, especially cardiovascular health. Patients managing high cholesterol, hypertension, diabetes, or metabolic risk benefit from his advanced lipid testing approach. He also serves families well, covering pediatric care, adolescent health, women's health, and sports medicine under one roof. Patients who value direct physician access and unhurried appointments find his practice a strong fit.
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Frequently Asked Questions
Dr. Stein treats a wide range of acute and chronic conditions. These include acne, eczema, psoriasis, skin cancer, allergies, asthma, anxiety, depression, hypertension, diabetes, headaches, and obesity. He also manages ADD/ADHD, menopausal symptoms, osteoporosis, heart disease, and hyperlipidemia. His clinical scope spans family medicine, preventive cardiology, sports medicine, and women's health.
Yes. Dr. Stein holds board certification from the American Board of Family Physicians, earned in 1998 and recertified in 2012.
Dr. Stein treats cardiovascular risk as largely preventable. He uses advanced lipid testing, including LDL particle number and ApoB measurement, to detect risk that standard cholesterol panels can miss. He combines these diagnostics with nutrition counseling and proactive management of blood pressure, diabetes, and metabolic factors.
D. from St. Louis University School of Medicine in 1995. He completed his Family Medicine residency at St. John's Mercy Medical Center/Mercy Hospital from 1996 to 1998. Before medical school, he earned a Master's in Cellular and Molecular Biology and a Certificate in Genetic Engineering from San Francisco State University and the University of California, San Francisco.
Yes. Dr. Stein includes sports medicine among his core specialties. C. St. Louis, and the St. Louis Bandits hockey team.
Dr. Stein holds memberships in the National Lipid Association, the European Atherosclerosis Society, the European Society of Cardiology, the American Society of Preventive Cardiology, the American Academy of Family Physicians, and the St. Louis Metropolitan Medical Society.
Dr. Stein believes that good medicine requires both rigorous science and a genuine partnership with each patient. He views the time spent listening and thinking together as the most effective tool he has. His goal is to help each patient achieve the best possible quality of life, going beyond standard-of-care minimums where he can.
Yes. Dr. Stein offers a broad range of women's health services, including gynecology care, breast health and cancer screening, menopausal medicine, hormonal replacement therapy, and osteoporosis management.
Yes. Dr. Stein provides pediatric care, including well child exams, school and sports physical exams, immunizations, and management of ADD/ADHD. Children of members ages 18 to 26 join the practice at no additional annual fee.
Doctor profile last updated April 11, 2026