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Peter Elsissy, M.D.

Joint Replacement

Dr. Peter Elsissy was born to two immigrants, both from Cairo, Egypt. He was raised in Connecticut and moved to Southern California at age ten, where he attended El Dorado High School in Placentia.


After graduating high school, he attended the University of California, Riverside, and graduated with a Bachelor of Science in 2002. He received his MD from David Geffen School of Medicine, UCLA in 2005 and completed his internship in general surgery at Loma Linda University in Orthopaedic Surgery in June 2010 before completing his fellowship in Hip and Knee Arthroplasty at the Arizona Institute for Bone and Joint Disorders in August 2011.


Dr. Elsissy has received recognition for several achievements over the years. He received a first-place research paper at the 5th annual Loma Linda University Medical Center/Graduate Medical Education Program Directors and a "Teaching Resident of the Year" by the Orthopaedic Trauma Association.


Dr. Elsissy is associated with the publication of two manuscripts titled "Symptomatic Osteonecrosis of the Hip and Knee After Cardiac Transplantation" and "Cell Count and Differential of Aspirated Fluid in the Diagnosis of the Infection at the Site of Total Knee Arthroplasty." His completed research includes a publication for the American Journal of Orthopaedics titled "The Effect of Insurance Type on Delay in Fracture Care" and "Diagnostic Quality of Knee MRI in the Presence of a Trans-Articular, MRI Safe, External Fixator.


In 2010, both Dr. Elsissy, his wife Laura, and Dr. and Mrs. James Matiko traveled to Haiti on a medical mission trip to help those affected by a tragic earthquake. 


His hobbies include snowboarding, cooking with family and friends, and traveling. Dr. Elsissy has been a member of the American Academy of Orthopaedic Surgeons since 2006. He's been a wonderful addition to our excellent orthopaedic team.

Memberships & Affiliations

  • American Academy of Orthopaedic Surgeons

  • American Association of Hip and Knee Surgeons


"Dr. Elsissy is a very nice person and an excellent doctor. Is been a pleasure to be his patient."

-Juvencio M.


"I have had the best medical procedure on my knee replacement surgery what a great experience with Dr.  Elsissy and  his  5 star team!!"   

-Jimmy D.


"Dr. Elsissy is great to work with. He is very knowledgeable and caring. The best thing of all is that he will pray for you to have a good outcome from the surgery and quick healing after the surgery. What a blessing to have him as your surgeon!! 🙏🏻🤙😉 Thank You God! and the staff at Arrowhead 👌😉"

-James M.


"I went to see Dr Peter for my knee, gave me a shot in the knee and it worked great! No pain and the Dr was so nice, I was impressed, Dr said a prayer for myself and my husband who is very sick. When it’s time  my knee surgery I will be back."

-Deborah L.


"Dr Eisissy Is a wonderful caring doctor I only wish there were more doctors like him he’s sets the bar high."

-Maria D.


"Dr Elsissy is competent, caring, skilled, communicative, and treats you with the upmost respect. I felt like a VIP. He also has the best bedside manners. I’m ready to do my other knee!"

-Victoria R.

*Reviews taken from satisfaction surveys*

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