Our Team

Our Surgeons

James J. Nicholson, MD, FAAOS

Director of our Joint Replacement Center at Stony Brook University Medical Center, he is fellowship-trained in the treatment of arthritic conditions and in primary hip and knee replacements as well as revision hip and knee replacement surgery. Dr. Nicholson sees patients in our outpatient facility at 14 Technology Drive, Suite 11 where he evaluates, diagnoses, and treats, them. Dr. Nicholson also performs surgeries at Stony Brook University Medical Center for patients in need of hip and knee replacement surgery and for patients who need revision surgery.

Fazel Khan, MD, Orthopaedic Surgeon

Dr. Fazel Khan is an orthopaedic surgeon specializing in joint replacement surgery; including minimally invasive and computer-assisted surgery, bone tumor surgery, soft tissue tumor surgery, and general orthopaedics. In addition to his extensive training, Dr. Khan actively participates in orthopaedic research studies on robotic and computer-assisted technologies for the ultra-precise removal of bone tumors.

Jeffrey S. Muhlrad, MD, Orthopaedic Surgeon

Dr. Jeffrey Muhlrad is available for consultation regarding arthritic conditions of the hip and knee. He will offer the full gamut of non operative treatment options and recommend surgical intervention when appropriate. Dr. Muhlrad is also available to provide evaluation for those having concerns or issues following prior joint replacement or for second opinions prior to surgery.

Our Staff  
Joseph Giglio
Physical Therapist
Mr. Giglio is a Physical Therapist who administers physical therapy treatments to post-operative hip and knee replacement patients. He also teaches the physical therapy portion of the pre-operative teaching class.

Grace Granville, RPA-C
Physician Assistant
Ms. Grandville is a Physician Assistant who works at 14 Technology Drive, Suite 11, as well as Stony Brook University Medical Center in the care of patients with hip and knee conditions and those undergoing hip or knee replacement surgery. 

Patricia Graziani Patricia Graziani
Administrative Assistant to Dr. James Nicholson
Ms. Graziani is liaison between Dr. Nicholson and patients with regard to booking of surgeries, processing of insurance approvals, and other vital issues involved with the surgical process. She processes patient requests for filling out forms, obtaining insurance authorization, as well as patient inquiries regarding every aspect of their care.

Donna Hoffman, RN MS
Nurse Manager
Ms. Hoffman is the inpatient Nurse Manager of the 14 South Orthopaedic Unit. Her responsibilities include the overseeing of all nursing care given to hip and knee replacement patients.

Maria Juvan, RPA-C
Physician Assistant/Coordinator
Ms. Juvan is a Physician Assistant who works at  Stony Brook University Medical Center in the care of patients with hip and knee conditions and those undergoing hip or knee replacement surgery. Maria coordinates many of the activities of the Joint Replacement Center.
Susan Mascke

Susan Mascke
Administrative Assistant to Dr. Khan
Ms. Mascke is liaison between Dr. Khan and patients with regard to booking of surgeries, processing of insurance approvals, and other vital issues involved with the surgical process. She processes patient requests for filling out forms, obtaining insurance authorization, as well as patient inquiries regarding every aspect of their care.

Cynthia Murtha, RPA-C

Cynthia Murtha RPA-C
Physician Assistant
Ms. Murtha is a Physician Assistant who works at Stony Brook University Medical Center in the care of patients with hip and knee conditions those undergoing hip or knee replacement surgery and other orthopaedic conditions. 

Chris O'Hara
Physical Therapist
Mr. O'Hara is an inpatient Physical Therapist who administers physical therapy treatments to post-operative hip and knee replacement patients. He also teaches the physical therapy portion of the pre-operative teaching class.

Barbara Rigney, PCT
Patient Care Technician
Ms. Rigney is an outpatient Patient Care Technician who works at 14 Technology Drive, Suite 11. She coordinates patient flow during office visits, prepares injection set-ups, radiograph processing and obtainment of reports of patient studies.

Haley Riordan, RPA-C

Haley Riordan RPA-C
Physician Assistant
Ms. Riordan is a Physician Assistant who works at 14 Technology Drive and Stony Brook University Medical Center in the care of patients with hip and knee conditions, oncologic orthopaedic conditions and those undergoing hip or knee replacement surgery. 

Lauren Walsh, RPA-C

Lauren Walsh RPA-C
Physician Assistant
Ms. Walsh is a Physician Assistant who works at Stony Brook University Medical Center in the care of patients with hip and knee conditions those undergoing hip or knee replacement surgery and other orthopaedic conditions.