Doctor of Physical Therapy

“AJ” Kessler PT, DPT, DNSET, MLS, CSCS Photo


  • Doctor of Physical Therapy (DPT), University of Southern California
  • Bachelor of Science (BS) in Exercise Science, Elon University


Dr. Kessler is the Physical Therapy Supervisor at OSS. He is passionate about exercise science, movement, strength-based sports, and health optimization. He uses various movement training approaches as well as manual therapy as needed to improve your physical performance, mobility, strength, endurance, balance, and coordination.

Dr. Kessler was raised in Washington DC but is now a proud Angeleno since graduating from USC’s Physical Therapy program (fight on!). His philosophy on physical therapy revolves around good communication, aligning his care with your goals to improve your overall well-being.

Dr. Kessler will explore how your diet, sleep, and other lifestyle factors affect pain and movement, and how these areas can be optimized to get you the best results. He will help you learn about your condition and how to manage it independently. He also welcomes Spanish speakers!

  • “Dr. Jeter is great! Compassionate and quite capable--terrific combination. I highly recommend her for pain management. ”

    - Denise V.
  • “Dr. Shahan Yacoubian replaced my left hip in October. I went in with full confidence because not only was I referred by my trusted physician, but leading up to the surgery I met so many others who had recently had hip or knee surgery and highly recommended him. Since my VERY SUCCESSFUL hip replacement, I've met even more of his happy patients. It just ... ”

    - Tina P.
  • “I'm thrilled to return as a patient of Dr. Stephan Yacoubian for my upcoming knee arthroscopy surgery. He performed surgery for my other knee over 10 years ago and gave me excellent care. His expertise and experience give me peace of mind but just as important he takes the time during my appointment to answer any questions I have. His office staff is ... ”

    - Karen G.
  • “OSS is Amazing including all the staff. They are Super Friendly and Helpful! Dr. Jeter's is Awesome and truly listens and understand how much pain you might be in. She moves quickly to find where the source of your pain is coming from and inform you of that information. I recommend OSS and their entire team! Thank you everyone and Thank you Dr. Jeter's! ”

    - Naimah H.
  • “I think Orthopedic Surgery Specialists group is the best group for orthopedic surgery. Over the years, before OSS, I had two knee surgeries, a shoulder surgery, and a foot surgery with different doctors and at different facilities. So I have had a lot of orthopedic experience. I discovered OSS this summer after a MRI revealed I had a broken hip. Dr. ... ”

    - Janet L.
  • “They evaluated me carefully, always listen to my feedback, and adjusted workouts to see my progression, and in the end, I was able to be discharged from treatment and return to my normal activities earlier than planned. I definitely built more strength in the program than I had before, and feel confident that I can continue building strength at home with ... ”

    - Brain M.