Primary care for everyday health
Ascension Medical Group St. John in Tulsa, OK, delivers primary care to children and adults. When you need quick and convenient care for unexpected, non-life threatening, minor illnesses and injuries, we're here for you. We listen to understand the health needs of you and your family. Then, we deliver care that's right for you or your child.
Our primary care team takes the time to get to know you and your family and to learn about your family’s health history. Together, we work with you to promote your long-term health and well-being. We deliver a wide range of personalized services, including health physicals, screening tests, and treatments for existing health conditions. We’re here for your everyday healthcare needs, including:
- Annual, school and sports physicals
- Newborn and child well-checks; immunizations
- Healthcare for teenagers
- Preventive heart care (high blood pressure, irregular heartbeat)
- Senior health
- Women GYN exams (Pap tests and family planning)
- Behavioral therapists
- Licensed care managers and a social worker, who are available to help you navigate your health journey
Choose a provider and schedule your visit

Bobbie Diane Lucas, LCSW
Clinical Social Work

Sterling Abernethy Webb, MD
Family Medicine

Allison Janiece Asbill, APRN
Family Medicine

Jennifer Janette Vanderford, APRN
Family Medicine

Karen Aliene Sturgill, APRN
Family Medicine

Kevin Eugene Steichen, MD
Family Medicine
Care for your everyday health needs
- Primary care in Tulsa at Ascension St. John
Doctors at Ascension St. John are here for all your care needs in northeastern Oklahoma, including new symptoms, concerns and chronic conditions.