About
John Ellena, MD is a board-certified internal medicine physician practicing at BJC Concierge Care in St. Louis, Missouri. He is part of BJC Medical Group and focuses on adult primary care. Dr. Ellena delivers personalized care to a limited panel of patients, allowing him to build thorough knowledge of each patient's health history and goals.
Certifications
Who is Dr. Ellena right for?
Dr. Ellena is a strong fit for adults seeking a personal, relationship-driven approach to primary care. Patients managing chronic conditions benefit from his focused panel and longer appointment times. He works well with adults who want a physician with deep familiarity with their health history. Those seeking proactive preventive care and same-day access will find his practice a good match.
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Frequently Asked Questions
Dr. Ellena specializes in internal medicine. He focuses on adult primary care, including preventive medicine, chronic disease management, and annual wellness. His board certification reflects his training and clinical focus in this specialty.
Yes, Dr. Ellena holds board certification in internal medicine. All physicians at BJC Concierge Care maintain board certification in their specialty.
Dr. Ellena limits his panel to between 400 and 600 patients. That limit allows him to spend meaningful time with each member and develop a thorough understanding of their medical history and health goals.
Yes. Members have 24/7 access to Dr. Ellena, including direct communication via his cell phone. Same-day or next-day appointments are also available for urgent needs.
Dr. Ellena treats a broad range of adult health concerns, including acute illnesses, chronic conditions, and preventive care needs. His scope includes chronic disease management, health screenings, weight management, and wellness planning.
Yes. If you are admitted to a local hospital where Dr. Ellena holds medical staff privileges, he will visit you during your stay. He also coordinates your care with hospital teams and specialists within the BJC system.
Members can contact Dr. Ellena directly by cell phone at any hour. The practice also coordinates care outside of office visits to support members' ongoing health needs.
Doctor profile last updated April 9, 2026