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1568 Lake Lansing Road, Lansing, MI 48912


About Our Providers

A.J. Ronan DO

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Dr. Ronan is a Michigan native who hails from the Orchard Lake - Farmington Hills area of west Detroit. He completed his undergraduate degree in psychology at Michigan State University and received his medical training at Des Moines University, College of Osteopathic Medicine and Surgery In Des Moines, Iowa. He graduated from the Family Medicine residency program at Ingham Regional Medical Center in August 2000.

While training in Lansing, Dr. Ronan was Chief-Resident of Family Medicine and also a clinical teaching faculty member at Michigan State University - College of Osteopathic Medicine. Dr. Ronan has interests in sports medicine as well as Osteopathic Manipulative Medicine for the treatment of neck and back pain. He has had the opportunity to train under David Boesler, D.O., Raymond Ruby, D.O., Gerald Cooper, D.O., Y. Jay Sandweiss, D. O., and many other esteemed osteopathic physicians during his career.

Educational Background

  • Undergraduate School - Michigan State University
  • Medical School - University of Des Moines
  • Residency - Ingham Regional Medical Center Family Medicine


  • Board Certified in Family Medicine and OMT

Kelli Singletary, PA-C


Kellie Singletary has been a Physician Assistant for almost 8 years.  She completed her undergraduate and graduate programs at Michigan State University and Wayne State University.  She is originally from the Detroit area and has been residing in the Lansing area for the past 7 years.  Her background includes family practice care, urgent care medicine and gastroenterology.  Kelli‚Äôs hobbies include spending time with her friends and family, traveling, and spending time outdoors in the summertime.  Kelli most recently adopted a Chihuahua from the Humane Society, who keeps her on her toes as well!

Jennifer Weston, PA-C

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Jennifer has been a Physician Assistant for 17 years, working in both family practice and urgent care medicine. She completed her undergraduate studies at Alma college and received her Master's degree at Baylor College of Medicine in Houston, Texas. Jennifer grew up in the Upper peninsula of Michigan and has resided in Grand Ledge with her husband and 3 children, for 13 years. She is passionate about exercise and healthy eating for maintaining one's overall health and longevity. When she is not caring for patients in the office, you will find her with friends and family biking, hiking, kayaking, or downhill skiing in the beautiful Michigan outdoors.