Spine Shoulder Hand Hip Knee Ankle
Spine Shoulder Hand Hip Knee
Office hours
Monday - Friday
8am - 5pm

John N. Diana, M.D.

St. Helena Coon Joint Replacement Institute joint replacement specialist
Joint Replacement – Arthroscopic Surgery

Dr. John Diana is a leading provider of minimally invasive anterior hip replacement, quadriceps sparing computer total knee arthroplastry, computer-navigated knee replacement, and MAKOplasty(R) minimally invasive partial knee resurfacing. These procedures may produce optimum post-operative results and accelerated patient recovery.

President of Napa Valley Orthopaedic Medical Group, Dr. Diana has served as Chairman of Surgery at Queen of the Valley Hospital, and is serving as a Board Member for Queen of the Valley’s charitable Foundation.

Specialty: Joint Replacement; Arthroscopic Surgery
Medical School: Indiana University School of Medicine
Internship: Orthopaedic Surgery Internship, Hospital of the University of Pennsylvania
Residency: Orthopaedic Surgery Residency, Hospital of the University of Pennsylvania


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