Dr. Daniel Christopher Allison is a Los Angeles–based orthopedic surgeon whose career centers on musculoskeletal oncology, complex hip and knee reconstruction, and the direct anterior approach to hip replacement. Beyond the operating room, he is also known to the public as the former husband of actress Monica Potter, though his professional record stands entirely on its own.
Who Is Dr. Daniel Christopher Allison?
Dr. Allison is a board-certified orthopedic surgeon specializing in orthopedic oncology and advanced joint reconstruction. He currently serves as Assistant Director of Orthopedic Oncology at Cedars-Sinai Medical Center, Associate Clinical Professor of Orthopedic Surgery at the University of Southern California (USC), and Co-Director of Pediatric Orthopedic Oncology at Children’s Hospital of Los Angeles (CHLA). His clinical focus includes soft tissue sarcomas, primary and metastatic bone cancers, and invasive skin cancers affecting the back, pelvis, shoulder girdle, and extremities.
Early Life and Education
Allison built his academic foundation in the sciences well before entering medicine. He earned a Bachelor of Science in Biochemistry, graduating cum laude from Southern Methodist University in Texas. From there, he pursued a combined path in medicine and business, earning his Doctor of Medicine with Honors from Baylor College of Medicine in Houston and a Master of Business Administration in Healthcare Administration from Rice University’s Graduate School of Management.
Medical Training and Career Path
Allison completed his postgraduate medical training at the University of Southern California and LAC+USC Medical Center, where he finished a combined internship in orthopedic and general surgery, followed by an orthopedic surgery residency. He then completed a fellowship in musculoskeletal oncology and pelvic reconstruction at the Keck School of Medicine at USC.
Earlier in his career, he held academic and clinical leadership roles at LAC+USC Medical Center, including Section Chief of Pediatric Orthopedic Oncology Service and Assistant Section Chief of Adult Orthopedic Oncology Service, alongside an appointment as Assistant Professor in the Department of Orthopedic Surgery at USC.
Areas of Surgical Expertise
Allison practices at the Orthopedic Center on San Vicente Boulevard in Los Angeles, with clinical affiliations at Cedars-Sinai Medical Center and CHLA. He is recognized for treating malignant tumors of the musculoskeletal system and for advanced bone and joint reconstruction across a range of conditions. He is also among a small group of surgeons with long-standing expertise in the direct anterior approach to hip replacement, a minimally invasive technique performed using a standard operating table.
Surgical Innovation and Patents
Allison holds a U.S. patent for a retractor system designed to make the anterior hip approach more precise and accessible to other surgeons. He has also served as lead surgeon-designer for additional implant systems, including a bone-preserving hip arthroplasty femoral stem developed with Ortho Development Corporation and a revision total knee replacement system developed with Exactech, Inc. He advises and speaks for orthopedic device companies including Carbo-Fix, Ltd. and Convatec, Inc.
Academic Contributions and Publications
Allison has authored numerous peer-reviewed journal articles and several book chapters spanning orthopedic oncology and advanced joint reconstruction. He has presented research papers, abstracts, and teaching demonstrations at surgical society meetings across the United States and internationally, and he has served on editorial boards and as a peer reviewer for medical journals in his field.
Professional Memberships
- Fellow, American College of Surgeons (FACS)
- Fellow, American Academy of Orthopedic Surgeons (AAOS)
- Member, Musculoskeletal Tumor Society (MSTS)
- Member, Orthopedic Trauma Association (OTA)
- Member, American Association of Hip and Knee Surgeons (AAHKS)
- Member, American Orthopedic Association (AOA)
Military Service
Alongside his civilian medical career, Allison has served as a Lieutenant Commander in the United States Navy Reserve, holding a commission in the Medical Corps.
Personal Life
Allison was previously married to American actress Monica Potter, known for her roles in Parenthood and Saw. The two were married for a period before their relationship ended, and Allison has largely kept his personal life outside of medicine private, letting his surgical and academic career speak for itself.
Legacy and Ongoing Work
Today, Dr. Allison continues to treat patients with complex musculoskeletal tumors and joint conditions in Los Angeles while training other surgeons in the anterior hip replacement technique he helped refine. Between his clinical practice, research output, and device innovation, he remains an active figure in advancing orthopedic oncology and reconstructive surgery.
Frequently Asked Questions
What is Dr. Daniel Christopher Allison known for?
He is known for his work in orthopedic oncology, complex joint reconstruction, and the direct anterior approach to hip replacement, as well as for being the former husband of actress Monica Potter.
Where does Dr. Allison practice?
He practices in Los Angeles, with affiliations at Cedars-Sinai Medical Center, USC, and Children’s Hospital of Los Angeles.
What is Dr. Allison’s educational background?
He holds a BS in Biochemistry from Southern Methodist University, an MD with Honors from Baylor College of Medicine, and an MBA from Rice University.
