Physicians

Our office is open. In-person visits with personalized safety care precautions.

Christopher Bilbao, MD

Board Certified Neurosurgeon

Stanford University Spine Fellowship 

Dr. Christopher Bilbao is a distinguished spinal surgeon renowned for blending expertise, compassion, and cutting-edge techniques. With a background steeped in rigorous education and specialized training at prestigious institutions, Dr. Bilbao brings a warm, empathetic approach to every patient interaction. His commitment to staying at the forefront of medical advancements ensures that patients receive the highest standard of care.

Focused on personalized treatment plans, Dr. Bilbao utilizes minimally invasive techniques, including robotic surgery, to ensure superior outcomes and rapid recovery for his patients.

Some Fun Things About Dr. Bilbao

He is fluent in Spanish and comes from a proud Cuban heritage, with deep family roots in Cuba. His cultural background and bilingual abilities give him a unique perspective and connection to both Latin American and Spanish-speaking communities.

South Nassau Orthopedic Surgery
South Nassau Orthopedic Surgery

Robert Drazic, MD

Board Certified Orthopedic Surgeon

Fellowship in Sports Orthopedic Surgery

Dr. Robert Drazic is a board-certified orthopedic surgeon. He completed his doctorate in Osteopathic Medicine at the New York College of Osteopathic Medicine, New York Institute of Technology in 1994. Graduated his Orthopedic Residency with Lake Erie College of Osteopathic Medicine at Peninsula Hospital in New York in 2000. Since 2014, he has been a Clinical Assistant Professor in the Department of Surgery at New York Institute of Technology.

Dr. Drazic had been practicing medicine for over two decades. Qualified to treat and diagnosis all varieties of injuries to the musculoskeletal system including the muscles, bone, joints, ligaments, and tendons, with primary focus on shoulders and knees. He only resorts to surgery when all other treatment options are already ruled out or exhausted.

Dr. Drazic is licensed in both New York and New Jersy. His affiliations include Bayonne Medical Center as well as multiple ambulatory surgical centers in New York and New Jersey.

Dr. Drazic speaks both English and Croatian.

Michael McLaren Zillis, MD

Orthopedic Surgeon

Dr. Michael McLaren Zilles is a New York City–born, New York–trained orthopedic surgeon affiliated with Mount Sinai and Kings County/SUNY Downstate in Brooklyn. He completed advanced fellowship training in sports medicine at the Graduate Hospital of Philadelphia.

With over three decades of board certification from the American Board of Orthopaedic Surgery, Dr. Zilles has cared for patients across the country — including New York, Los Angeles, North Carolina, West Virginia, Wyoming, and the U.S. Virgin Islands — and served as team physician for Tottenville High School (NY), Roxboro High School (NC), Marist University, and Valley Forge Military Academy and College.

A U.S. Navy Reserve veteran, Dr. Zilles brings discipline and dedication to his practice. His surgical expertise includes arthroscopy, joint replacement, ACL reconstruction, rotator cuff repair, and treatment of common hand and upper-extremity conditions such as carpal tunnel, trigger finger, De Quervain’s, tennis elbow, and fractures.

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Jacob Peacock, MD

Board Certified in Physical Medicine and Rehabilitation
Board Certified in Interventional Pain Management

Dr. Jacob Peacock, MD, is an American board-certified physician specializing in pain disorders and sports medicine. A graduate from Michigan State University with his M.D, he completed his residency at New York University Rusk Institute of Rehabilitation Medicine and his fellowship at Swedish Neuroscience Institute -Interventional Spine and Pain.

Dr Peacock, with his many years of experience uses modern treatments and interventions to help patients achieve their functional goals and find pain relief. He believes in a patient-centered care model and strives to meet patients' goals through clear communication and team-focused care.

Dr. Peacock is licensed in both New York and New Jersey. His affiliations include Northwell Health Hospital in NY as well as multiple surgical facilities in both NY and NJ. He is a long-standing member of the American Medical Association, American Academy of Physical Medicine & Rehabilitation as well as New York Society of Interventional Pain Medicine.

Victor Rivera

Victor Rivera is a certified medical assistant. With over 15 years of experience, he earned his certification during his time with the Navy at the Naval Hospital Corps “A” School in 2006. Victor has a vast knowledge of multiple clinical skills from a range of different specialists. He works primarily with our orthopedic and spine surgeons within the practice. He aids patients with employment and disability forms post- and pre-surgery.

His previous and current experience with pain management and knowledge of various surgeries aid in the assistance of scheduling and explaining procedures to patients. He is our lead medical assistant and is very supportive of his peers and readily available to assist anyone.

Some Fun Things About Victor Rivera

Away from work, Victor enjoys traveling to his home country of Ecuador with his wife and children.

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South Nassau Orthopedic Surgery

Mario Medina

Mario Medina is a certified clinical medical assistant. Earning his certificate in 2012 at Anthem Institute in Jersey City, New Jersey. Mario now has over 10 years of hands-on experience working with multiple specialists in various clinical settings. He is the lead assistant working directly with Dr. Menashehoff but offers support to his fellow peers and any other provider within our organization.

Some Fun Things About Mario Medina

Outside the office, Mario is an entrepreneur, go-getter, dad, and husband. He is a landlord and business owner. When he is not hustling, he’s entertaining his friends and family with his comical personality. He enjoys spending as much time as he can with his son, daughter, and wife.