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Michelle Antonio Tanzil, DO | Kaiser Permanente
Obstetrics and Gynecology Care in Ontario
Michelle Antonio Tanzil, DO, is an obstetrician and gynecologist serving patients through Kaiser Permanente in Ontario, California. The practice offers a full spectrum of women’s health services, including prenatal and obstetric care, gynecological exams, family planning, and management of reproductive health conditions. As part of Kaiser Permanente’s integrated health system, this practice operates within a coordinated network of medical facilities and specialists.
Kaiser Permanente’s Integrated Care Model
Patients benefit from Kaiser Permanente’s comprehensive approach to healthcare delivery. The organization coordinates obstetric services with hospital-based labor and delivery facilities, pediatric care, and other medical specialties. This integrated structure allows for streamlined referrals and continuity of care throughout pregnancy, delivery, and postpartum periods. Electronic health records are shared across departments, enabling providers to access complete patient histories and coordinate treatment plans efficiently.
Dr. Tanzil’s practice serves Kaiser Permanente members in the Ontario area seeking gynecological and obstetric services. Scheduling and insurance verification are handled through Kaiser Permanente’s member services. Those seeking care should contact their health plan directly for appointment availability and coverage details.






