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Mary Washington Orthopedics in affiliation with FOA

Patients and visitors are required by law to wear masks in all healthcare facilities, regardless of vaccination status. Mary Washington Medical Group is pleased to welcome masked visitors in our offices. An office visitor, such as companion or caregiver, may accompany a patient into our newly reopened and socially-distanced waiting areas and exam rooms. Thank you for helping us continue offering a safe, healthy environment for our patients and our providers.


  • Fredericksburg
    3310 Fall Hill Avenue
    Fredericksburg, Virginia 22401
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  • Spotsylvania
    4710 Spotsylvania Parkway
    Fredericksburg, Virginia 22407
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  • Stafford
    90 Greenspring Drive
    Stafford, Virginia 22554
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  • Orthopedic Physician Appointments

    Office Hours: Monday–Friday 8:00 a.m.–5:00 p.m.

  • Virtual Visits

    Click or tap the virtual visits button to learn more about telephone and video visits.
    Virtual Visits

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At Mary Washington Orthopedics in affiliation with FOA, our highly skilled physicians and staff bring local expertise to you and your family. Using state-of-the-art technologies, we deliver treatment that's customized just for you.

We focus on your specific needs and goals to help you live life with less discomfort and resume the activities you love. As a multi-specialty orthopedic practice, we offer medical and surgical treatment for all orthopedic conditions, specializing in:

  • Arthroscopic surgery, including ankle, knee, hip, and shoulder reconstruction
  • Carpal tunnel repair
  • Foot and ankle surgery
  • Fractures
  • Micro hand surgery
  • Shoulder replacements
  • Neck and back pain
  • Spine surgery
  • Osteoarthritis
  • Sports medicine, including pediatric sports medicine
  • Sprains and strains
  • Total joint replacement (knee replacement, hip replacement) and revisions

Our care extends well beyond the surgical repair of an orthopedic condition. Our goal is to help you return to normal daily activities as quickly as possible. To best support your healing and recovery, on-site licensed physical and occupational therapists work with our providers to complete comprehensive evaluations and customized treatment programs. Available in all three of our locations, our physical therapy facilities are complete with state-of-the-art equipment to meet your needs. We also have a fourth physical therapy location to serve our patients in south Stafford.

Our Physicians

Kostas J. Constantine, MD

Hand, Wrist & Upper Extremity

Education and Experience

Brian T. McDermott, MD

Knee & Hip Joint Replacement, Sports Medicine

Education and Experience

Kenneth J. Accousti, MD

Shoulder & Elbow, Sports Medicine

Education and Experience

David A. Zijerdi, MD

General, Joint & Trauma, Sports Medicine

Education and Experience

Ali R. Hashemi, MD

General Orthopedics, Orthopedic Trauma, Shoulder, Elbow, Wrist, Hand, Pediatric Orthopedics

Education and Experience

Wahid M. Baqaie, MD

Cervical, Thoracic & Lumbar Spine Surgery and Medicine

Education and Experience

Christopher J. Richards, MD

Adult and Pediatric Sports Medicine, Orthopedic Trauma

Education and Experience

Michael F. Bowen, DPM, FACFAS

Board certified foot and ankle surgery

Education and Experience

Physician Assistants

Patricia K. Keenan, PA-C

Patricia graduated with a bachelor’s in biology from the State University of New York at Cortland. She earned an additional BS from George Washington University graduating from the physician assistant program in 1997. She has been specializing in orthopedics for 12 years and primarily works with Dr. Brian McDermott assisting in all aspects of patient care including surgical first assist.

Education and Experience

Joy R. Riley, MMS, PA-C

Joy received her bachelor’s in health science from Lock Haven University of Pennsylvania while a member of the LHU Lady Eagles basketball team. She completed the physician assistant program at Emory University School of Medicine, where she earned a master’s degree in December of 1991. She is board certified by the National Commission on Certification of Physician Assistants. She has a 16 year clinical experience in neurosurgery and is proficient in adult spine and general orthopedics. She joined FOA in 2008, working closely with Dr. Accousti, sharing a special interest in disorders affecting the shoulder.

Education and Experience

Nicole Payette, PA-C

Nikki received her bachelor’s degree in sports medicine and health and exercise science from Guilford College. Nicole was a college athlete and student athletic trainer while in her undergraduate education. She went on to complete her master’s degree in physician assistant studies at Jefferson College of Health Sciences. She works primarily with Dr. Zijerdi assisting in all clinical aspects including patient care and surgical assist. She is a member of multiple organizations including the AAPA and VAPA.

Education and Experience

Brittany Schlund, PA-C

Brittany received her Bachelor's in Biology from Christopher Newport University while competing as a student athlete. She earned her Master's in physician assistant studies at Chatham University in Pittsburgh, Pennsylvania. She is board certified by the National Commission on Certification of Physician Assistants. Brittany has 8 years clinical and surgical experience in orthopedics. She works closely with Dr. Hashemi in the clinical role and surgical assist, sharing a special interest in shoulder, elbow, wrist and hand.

Education and Experience

Kaitlyn Forster, PA-C

Stacey Waldron, PA-C

Kate Lee, PA-C

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Awards & Recognitions

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