Joan O’Brien Hart NP

Joan O’Brien Hart Photo
  • Primary Specialties:
    • Hip, 
    • Knee, 
    • Total Joint
  • Gender: Female
Contact Information


Care Team: Dr. Knight

Joan O’Brien Hart is a physician’s assistant for Dr. Knight and a nurse practitioner at Muir Orthopaedic Specialists. She was certified by the American Nursing Credentialing Center (ANCC) and has been providing high-quality care for patients at MOS for several years. Her caring and compassionate manner puts patients at ease and contributes to their successful recoveries.

Joan takes the time to educate patients about their condition and treatments as she helps them regain orthopedic function. She develops strong relationships with her patients over time as she watches them improve their independence and quality of life.

Using her nursing background, Joan places a strong emphasis on patient education. She spends time with patients teaching them about their orthopedic conditions, how to get better and what to expect after surgery. Joan is available for phone consultations to assist with advice regarding many patient questions such as postoperative recovery advice, pain management, physical therapy and frequency of follow up appointments.

In her spare time, Joan enjoys spending time with her family, traveling, and going to the beach.

“Joan Hart was very thorough with her explanation and solutions. I liked how she suggested several options from exercises, medications, cortisone shots and surgery. I felt heard. She knew what she was talking about and related to me.” – Rhonda M.

Joan O’Brien Hart Photo


  • Walnut Creek - Sequoia

    2405 Shadelands Drive
    Suite 300
    Walnut Creek, CA 94598


  • San Ramon

    5201 Norris Canyon Road
    Suite 300
    San Ramon, CA 94583


Real Patients.
Real Success Stories.

  • “Joan Hart made my injection almost painless…..really did not expect it to be as easy as it was. Great Job.”

    - Anonymous