Dr. Sean DuffyDO

Internal Medicine

at Compass Direct Care

About

Dr. Sean P. Duffy is the founder and owner of Compass Direct Care in Arnold, Maryland. He earned his undergraduate degree at Boston University and his medical degree at Nova Southeastern University College of Osteopathic Medicine. He completed his residency training at Walter Reed Army Medical Center. Dr. Duffy holds board certification in Internal Medicine and brings over 15 years of clinical experience to his practice. He launched his career as a US Army physician, which shaped his direct and mission-driven approach to care.

Dr. Duffy built Compass Direct Care around one core belief: the doctor-patient relationship is the foundation of high-quality medicine. He is passionate about chronic disease management, obesity, hormone imbalance, and smoking cessation. His practice gives him the freedom to make healthcare decisions without administrative interference, letting him invest fully in each patient. Outside of medicine, he enjoys the local boating lifestyle and spends quality time with his wife and five children.

Education & Training

Undergraduate

Boston University

Medical School

Nova Southeastern University College of Osteopathic Medicine

Residency

Walter Reed Army Medical Center

Certifications

Board Certified in Internal Medicine

Conditions Treated

chronic disease
obesity
smoking cessation
hormone imbalance

Who is Dr. Duffy right for?

Dr. Duffy is a strong fit for adults seeking a primary care physician who genuinely knows them over time. Patients managing chronic conditions like diabetes, obesity, or hormone imbalance benefit from his focused internal medicine background. He works well with patients who want direct access to their doctor between visits. Anyone looking for proactive, prevention-first care will find his approach well-matched to their goals.

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Frequently Asked Questions

Dr. Duffy focuses on chronic disease management, obesity, hormone imbalance, and smoking cessation. He also handles acute illness and injuries, cancer screenings, annual physicals, and preventive care. His background in internal medicine gives him a broad clinical foundation for adults with complex or ongoing health needs.

Yes. Dr. Duffy holds board certification in Internal Medicine. He completed his residency at Walter Reed Army Medical Center and has practiced medicine for over 15 years.

Dr. Duffy earned his undergraduate degree at Boston University. He received his medical degree from Nova Southeastern University College of Osteopathic Medicine. He completed his residency training at Walter Reed Army Medical Center.

Dr. Duffy takes a proactive approach to prevention. Rather than waiting for problems to emerge, he works with patients to identify health goals and build a plan to reach them. His appointments run long enough to cover screenings, lifestyle factors, and individualized wellness planning in a single visit.

Yes. Dr. Duffy gives members direct access via phone, text, and email. This direct line means patients do not need to route questions through a front desk or wait for a callback from a nurse.

Dr. Duffy began his career as a US Army physician. He trained at Walter Reed Army Medical Center and practiced medicine for over 15 years before founding Compass Direct Care. That background informs his disciplined, patient-first approach to care.

Yes. Dr. Duffy includes hormone replacement therapy as part of his membership services. He treats hormone imbalance as a core clinical area, alongside chronic disease management and other internal medicine concerns.

Follow-up appointments run 30 minutes. Initial consultations run one hour and include a comprehensive physical, a screening assessment, and individualized health plan formation. Dr. Duffy structures visits to give patients time to ask questions and address all their concerns.

Doctor profile last updated April 17, 2026