Peconic Bay Medical Group's Medical & Surgical Specialists

Brett E. Ruffo, MD
Chief of Colon and Rectal Surgery, Board-Certified and Fellowship-Trained

Dr. Ruffo is a fellowship-trained and dually board-certified surgeon in both general surgery and colorectal surgery. Skilled in minimally invasive surgical techniques, Dr. Ruffo has been trained in use of the highly advanced da Vinci Robotic Surgical System, which offers leading-edge precision for treatment of life-threatening cancers of the colon and rectum.

Roni Aoun, MD

As a fellowship trained Gastroenterologist, Dr. Aoun manages diseases and disorders of the gastrointestinal tract, liver and pancreas. Dr. Aoun has also received advanced fellowship training in management of Inflammatory Bowel Disease (IBD) which includes Crohn’s disease and ulcerative colitis.

Dr. Aoun welcomes new patients for direct consultations or through referrals from Primary Care Physicians. Waiting times for appointments are typically short, with same-day office and telehealth appointments often available. Every effort is made to accommodate patients' schedules. Medicare, Medicaid and most insurance plans are accepted.

Kimberly Britt, NP

Sara A. Cerrone, MD
Board-Certified, Internal Medicine

A fellowship trained Gastroenterologist with board certification in Internal Medicine, Dr. Cerrone was Valedictorian of her graduating class from Stony Brook University, where she was also captain of the University’s Division I softball team and a four-time Academic All-American.

Listen to Dr. Cerrone on Peconic Bay Medical Center's Ask the Medical Expert in partnership with JVC Broadcasting.

Agostino Cervone, MD
Board-Certified, General Surgery

Dr. Cervone is a Board-Certified general surgeon specializing in advanced laparoscopic surgery with extensive experience in minimally invasive breast surgery, hernia surgery and general surgery. He is one of the region's leading experts in complicated abdominal hernia repair. One of the few surgeons in this region with advanced training in use of the world-class da Vinci Robotic Surgery System, he has been in practice on the East End of Long Island since 1999.

Listen to Dr. Cervone on Peconic Bay Medical Center's Ask the Medical Expert in partnership with JVC Broadcasting.

Bogdan Makartchuk, DO
Board-Certified, General Surgery

A board certified surgeon specializing in minimally invasive gastrointestinal, hernia, and breast surgeries, Dr. Makartchuk is also extensively trained in emergency life-support procedures for accident and heart attack victims. An active teacher and mentor for medical students and surgical interns, Dr. Makartchuk has conducted classes and clinical presentations in surgical and suturing techniques.

Denis James Nankervis, DO
Board-Certified, General Surgery

Dr. Nankervis welcomes new patients. Waiting times for appointments are typically short. Every effort is made to accommodate patients' schedules. Most insurance plans, Medicare and Medicaid are accepted.

Steven Paul Ouzounian, MD
Board-Certified, General Surgery

As a board-certified general surgeon, Chief of Surgery at Peconic Bay Medical Center, Dr. Ouzounian provides expert care in the areas of general, vascular, colorectal, breast and advanced minimally invasive surgery.  Dr. Ouzounian strives to provide the highest quality and compassionate care across a diffuse range of complex disease entities.  His practice was founded in 2007 with the goal of providing state-of-the-art surgical care to our neighbors on the East End of Long Island, while maintaining a compassionate and personal touch that makes his practice unique.

David Angelillo, DO
Orthopaedic Surgery and Sports Medicine

Dr. Angelillo is a dual board certified orthopaedic surgeon who provides comprehensive care for musculoskeletal injuries and conditions in patients of all ages.  He is an expert in arthroscopic surgery, as well as traumatic injuries including fractures and dislocations.  Fellowship-trained in orthopaedic surgery and sports medicine at NYU-Hospital for Joint Diseases in New York City, Dr. Angelillo offers his patients the advanced level of expertise demanded by professional athletes.

He was appointed to the NYS Athletic Commission Medical Advisory Board by Gov. Andrew Cuomo, which oversees professional boxing and mixed martial arts in New York.  He also serves as a Clinical Assistant Professor in the Department of Surgery at the New York Institute of Technology College of Osteopathic Medicine.  A member of Peconic Bay Medical Center’s Orthopaedics Team, he maintains outpatient offices at easy-access locations in Manorville and Patchogue.

Christopher Blum, MD

Fellowship trained in Orthopedic Reconstructive Surgery at Columbia University Medical Center, Dr. Blum specializes in providing treatment for orthopedic injuries and other painful musculoskeletal conditions, with a focus on hip and knee replacements. A Magna Cum Laude graduate of Rensselaer Polytechnic Institute, Dr. Blum earned his MD at the SUNY Downstate College of Medicine and served his Orthopedic Surgery residency at Stony Brook University Medical Center.

A member of Peconic Bay Medical Center’s Orthopedics Team, Dr. Blum welcomes new patients for direct consultations or through referrals from Primary Care Physicians.  He is seeing patients at Northwell’s community-based multi-specialty practices in Manorville, Riverhead and Shirley. Waiting times for appointments are typically short, with same-day office and telehealth appointments often available. Every effort is made to accommodate patients' schedules. Medicare, Medicaid and most insurance plans are accepted.

Nicholas Byrne, PT, DPT, CFMT

Dr. Byrne completed his Doctorate degree in Physical Therapy in 2017 at Stony Brook University, where his clinical rotations included sub-acute rehab, acute rehab, the neonatal ICU, trauma ICU, and manual outpatient orthopedics. He has continued to further his manual therapy skills in classes through the Institute of Physical Art, where he became a Certified Functional Manual Therapist (CFMT) in 2022. Through the Institute of Physical Art’s teachings, Dr. Byrne incorporates the principles of functional manual therapy into each patient he treats. This treatment approach focuses on the interrelationship between limitations of joint mobility, soft tissue restrictions, core stability, and neurovascular limitations to successfully address each patient's needs. By incorporating the functional manual therapy approach into evaluations and treatments, he gives each patient the strategies needed to be successful with physical therapy.

In addition to furthering his education in the field of manual therapy, Dr. Byrne has been serving as a lab instructor for Stony Brook University’s Doctorate of Physical Therapy Program since 2019. These classes include Orthopedics I and II, Kinesiology, and Integumentary. Outside of physical therapy, he enjoys kayaking, fishing, and woodworking.

Michael Ciminiello, MD
Specialist in Total Hip and Knee Joint Replacement and Revision

A board-certified, fellowship-trained orthopedic surgeon, Dr. Ciminiello specializes in Adult Hip and Knee Reconstruction including primary total hip and knee replacement as well as complex total hip and knee revision.

In treating patients with arthritic and other degenerative conditions of the hip and knee, the focus of Dr. Ciminiello’s joint replacement practice is to provide effective treatment to relieve pain and restore freedom of motion when nonoperative therapies no longer provide relief.

Olivia DeMarco, PA-C

Justin Engelbert, PA-C

A nationally certified Physician Assistant with experience in anesthesiology and pain management as well as orthopedics, Mr. Engelbert earned his BS and MS degrees at Wagner College, where he was captain of the Wagner College Rugby Club. He has provided PA services at the Pain Institute of New York, the Mount Sinai Medical Center Spine Center, Good Samaritan Hospital, and Stony Brook University Hospital.

Mr. Engelbert is proud to join Dr. Peter Sultan as an orthopedic PA, specializing in all aspects of orthopedics.

Richard Stephen Gilbert, MD
Specialist in Surgery of the Hand and Upper Extremity and Orthopedic Surgery

Fellowship-trained in hand and upper-extremity surgery at the Yale University School of Medicine, Dr. Gilbert is widely recognized as one of the region’s leading hand and upper extremity specialists, with honors including New York Magazine’s Best Doctor, Castle Connolly Top Doctors, New York Times Super Doctors, and Newsday’s Top Doctors on Long Island.

A distinguished member of the American Society for Surgery of the Hand and the American Academy of Orthopaedic Surgeons, Dr. Gilbert currently serves as the Vice President of the New York Society for Surgery of the Hand.  He has presented results of his grant-funded research on conditions related to the hand and upper extremities at regional and national orthopaedic conferences and in prestigious peer-reviewed medical journals.

Michael Khalili, MD
Fellowship-Trained Specialist in Interventional Pain Management

Dr. Michael Khalili is a native of Long Island who specializes in the diagnosis and treatment of complex chronic pain conditions. He completed his residency in Anesthesiology at Stony Brook University followed by fellowship training in Interventional Pain Management at the prestigious Columbia University.

Dr. Khalili is serving as an Assistant Professor at the Hofstra-Northwell Donald and Barbara Zucker School of Medicine. He has multiple publications in basic and clinical sciences including journal articles, case reports and textbook chapters.

Today Dr. Khalili offers advanced treatment modalities to patients suffering from acute and chronic pain of the back, neck, shoulder, knee, and upper or lower extremities. Patients are offered a multidisciplinary approach to pain management with a focus on nonsurgical and minimally invasive techniques. Using leading-edge technology and evidence-based treatment modalities, he performs epidural injections, peripheral joint injections, radiofrequency ablations, sympathetic blocks, as well as neuromodulation for refractory chronic or cancer pain. Dr. Khalili successfully delivers personalized care with the goal of improving daily functioning and quality of life for his patients.

Michelle Jack , PA

Michelle Jack is a Certified Physician Assistant (PA-C) who received a Master’s Degree from Touro College and graduated as the Salutatorian of her class. In addition, she received Outstanding Academic and Clinical Achievement Awards. Michelle continued her education through working in the ED with an 18-month Emergency Medicine Fellowship followed by a 12-month Ultrasound Fellowship.

Working as an Emergency Medicine PA-C in a Level I Trauma center, Michelle developed a wide-ranging skill set, positioning her to deliver exceptional patient care in a fast-paced trauma heavy environment.

Michelle is excited to join Dr. Sochol as a hand and upper extremity orthopaedic surgery PA, where she will be working with Dr. Sochol both in the office and assisting in surgical cases.

Peter K. Johnstone, Jr., PT, DPT, MS
Physical Therapy

Dr. Johnstone completed his Master’s degree in Physical Therapy from Quinnipiac University in 2001 and his Doctorate degree at Utica College in 2007. As a member of PBMC’s outpatient physical therapy team and lead therapist for the Upper Extremity and Sports Medicine Programs he strives to provide his clients with the best treatment approaches available. His clinical affiliations have included the University of Texas Medical Branch, North Shore LIJ, Mercy Medical Center, and Island Sports Physical Therapy. He has more than two decades’ experience in outpatient orthopedics specializing in treatment of sport injuries, work-related injuries, arthritic conditions, pre-op and post-op joint replacements, as well as spinal disorders.

Dr. Johnstone has a strong interest in manual therapy techniques and treating movement dysfunctions. He believes education is an ongoing process and is currently taking Maitland courses working towards becoming a certified orthopedic manual therapist. With the support of the local community, Dr. Johnstone has been named Dan’s Papers “Best of the Best Physical Therapist North Fork” multiple years.

Vincent Jean-Claude Leone, MD
Spine & Pain Specialist

One of the region's leading spine surgeons, Dr. Leone specializes in advanced treatment for traumatic spine and cervical injuries, scoliosis, herniated discs and spinal stenosis, and neck and back pain.

Fellowship-trained in both Trauma Spine Surgery and Scoliosis Surgery, Dr. Leone has been an integral part of the spine surgery programs at Winthrop-University Hospital in Mineola, Mount Sinai Hospital in Manhattan, and the North Shore University Hospitals in Syosset and Glen Cove.

Justin Liu, PA-C

Victor Adeola Olujimi, MD
Specialist in Sports Medicine and Elbow and Shoulder Surgery

An expert in prevention and treatment of sports injuries and concussion management, Dr. Victor Olujimi provides leading-edge care for recreational and competitive athletes of all ages. Fellowship-trained in orthopedic surgery as well as sports medicine, Dr. Olujimi has provided medical coverage for high school, college, and professional sports competitions, including lacrosse, hockey, and wrestling.

Jillian Saetta, PA-C

Ayal Segal, MD

James Smagala, PA

James Smagala is a Certified Physician Assistant who graduated with a Master’s degree from Touro college. James, a lifelong Long Island native, is proud to join Dr. Angelillo in his orthopedic practice, having prior experience in the orthopedic office setting, and most recently at Peconic Bay Medical Center in the orthopedic surgery department, having assisted some of the most renowned surgeons in over 1,000 surgeries during that time.

Kristen Sochol, MD
Hand, Upper-Extremity, Microvascular and Peripheral Nerve Surgery

Dr. Sochol specializes in treatment of injuries and diseases of the hand, wrist, elbow and shoulder, including microvascular and peripheral nerve surgery. She treats patients suffering from work- and sports-related conditions resulting from falls, accidents, impacts, repetitive stress and other factors. She is also a pediatric specialist with expertise in the management of congenital deformities.

She has conducted extensive research on upper extremity management. In addition to publishing clinical research papers, she has also contributed chapters for hand surgery textbooks and given numerous presentations at national and international meetings. She completed her residency training at the Mount Sinai School of Medicine in NY, and completed her fellowship training in hand and microvascular surgery at the USC Keck School of Medicine in CA.

Dr. Sochol receives patients on referral from other physicians, from athletic trainers, and from direct consultation with patients. Appointments can be made at any of her three different office locations. Her practice accepts Medicare, Medicaid, and most insurance plans.

Listen to Dr. Sochol on Peconic Bay Medical Center's Ask the Medical Expert in partnership with JVC Broadcasting.

Peter G. Sultan, MD
Specialist in General Orthopedics and Total Hip and Knee Joint Replacement

Dr. Sultan is one of Long Island's top hip and knee replacement surgeons.  He graduated with highest honors in biological sciences from Harvard University, was elected to the Alpha Omega Alpha Medical honor Society at Cornell University Medical College, and was fellowship-trained in hip and knee replacement surgery at Harvard Medical School, Massachusetts General Hospital. A board-certified orthopedic surgeon, Dr. Sultan was selected as one of America's Top Surgeons by the Consumers Research Council of America.

David Tsoumpelis, OT, CLT
Occupational Therapy, Certified Lymphedema Therapist

Amar Vyas, DO

Dr. Vyas provides specialized care for athletes and active individuals of all ages. Utilizing a multidimensional approach, he focuses on providing individualized care to treat non-surgical sports related injuries and musculoskeletal conditions. He is skilled in ultrasound-guided procedures, platelet-rich plasma (PRP) injections, diagnostic ultrasound, and concussion management.

Dr. Vyas completed Fellowship training in Sports Medicine at Northwell Health Plainview Hospital and is dual board certified in Sports Medicine and Family Medicine. As a graduate of the New York Institute of Technology College of Osteopathic Medicine in Old Westbury, Dr. Vyas incorporates a comprehensive and broad understanding of the musculoskeletal system into treatment plans for non-surgical sports-related injuries as well as other painful musculoskeletal conditions resulting from activities of work, play, and daily life. He served as Chief Resident of Family Medicine during residency training at Peconic Bay Medical Center, Northwell Health, and continued his training in Primary Care Sports Medicine working with numerous top physicians within the field of Sports Medicine and Orthopedics throughout New York City and Long Island.

His sports coverage experiences include several local high school football teams, Farmingdale State College, NYC marathon, New York Riptide Lacrosse, and Rugby New York. He is an active member of the American Medical Society for Sports Medicine (AMSSM) and the American Osteopathic Academy of Sports Medicine (AOASM) and has contributed as presenter for multiple national conferences.

A member of Peconic Bay Medical Center’s Orthopedics Team, he maintains outpatient offices at easy-access locations in Hampton Bays and Shirley. Every effort is made to accommodate patients with convenient appointment times, and availability of same-day office and telehealth visits.

Nazir Lone, MD

Board-certified and fellowship-trained in Pulmonology, Critical Care Medicine, and Internal Medicine, Dr. Lone specializes in treatment of patients with respiratory problems including: airways disorders such as asthma and COPD; inflammatory and non-inflammatory pulmonary conditions; pulmonary vascular and interstitial lung disease; and environmental, allergic and occupational lung diseases. His training includes advanced diagnostic techniques for various pulmonary diseases like endobronchial ultrasound-guided biopsies for lung cancers, ultrasound-guided pleural drainage procedures, pulmonary function testing and oxygen evaluations.

Dr. Lone is a Fellow of the American College of Chest Physicians (FCCP) and of the American College of Physicians (FACP). He graduated from medical school in India followed by an anesthesiology and critical care medicine residency from India. Later, he completed an Internal Medicine Residency from University of Missouri. He received his two fellowship trainings at the University of Missouri and Johns Hopkins University. He received his Masters of Public Health degree from the Johns Hopkins Bloomberg School of Public Health.

Listen to Dr. Lone on Peconic Bay Medical Center's Ask the Medical Expert in partnership with JVC Broadcasting.

Kazi Hossain, DO

Sergey Kravchick, MD

Ragheed M. Saoud, MD
Fellowship-trained in urologic oncology and kidney/pancreas transplantation

Fellowship trained at the University of Chicago in urologic oncology and robotic and endoscopic urology, Dr. Saoud is also certified in Single Port robotic-assisted surgery using the daVinci robotic surgery system. His research and publications focus on minimally invasive and robotic-assisted surgical treatments for conditions such as prostate cancer, bladder cancer, testicular cancer, and ailments of the kidneys and renal system.

Dr. Saoud is fluent in English, Arabic and French. His interests include basketball, diving, travelling, skiing, and movie making.

Francesco Taormina, DO