Pfisterer Orthopaedics

Our Physicians

Pfisterer Orthopaedics is a small family run practice in Teaneck, NJ which has been open to the community since 1983. Originally a solo practice for many years, the family business is growing and we currently have three physicians in our office; Dr. Dennis L Pfisterer (Sr.), Dr. Dennis J. Pfisterer (Jr.), and Dr. Christine Pfisterer. We pride ourselves in delivering specialized and personalized care to all of our patients. Instead of focusing on volume, we concentrate all of our efforts on easy access to high quality care and immediate appointments, with no worries about time restraints for each visit. Here at NJOC, we get to know our patients and you will never feel like just another number in the crowd or statistic.

Pfisterer Orthopaedics - Dennis J. Pfisterer (Jr.), MD

Dennis J. Pfisterer (Jr.), MD

Chief, Orthopedics, Holy Name
Specializes in General Orthopedics

Dr. Pfisterer focuses on treatment of knees, hips, and shoulders, but also performs surgery on the hand, elbow, foot and ankle. He is pleased to offer patient's a multitude of nonsurgical and surgical treatment options including many new and innovative techniques, such as arthroscopic and endoscopic surgery, minimally invasive surgery, and robotic joint replacement surgery.

He grew up in Bergen County and graduated from Ramsey High School in three years. He received a Bachelor's Degree in Economics from The College of the Holy Cross, in Worcester, Massachusetts. He went on to complete his medical training at the Lake Erie College of Osteopathic Medicine. Following medical school, Dr. Pfisterer performed his orthopedic residency at WellSpan York Hospital, a busy level one trauma center in south-central Pennsylvania, as well as Sinai Hospital and University of Maryland Shock Trauma Center in Baltimore, Maryland.

He studied with some of the most well-known and best trained surgeons in the country, including doctors from Harvard, Duke, Johns Hopkins, Mayo Clinic, Tampa General, and Harborview. He has been a contributing author to many scientific publications and has presented his work at national orthopedic meetings. After training, he decided to return to New Jersey with his family and took over the orthopedic practice of his father, Dr. Pfisterer (Sr.), who had been serving the local community for over thirty years.

While in Pennsylvania, Dr. Pfisterer developed a strong passion for orthopedic sports medicine. He loves attending sporting events and treating athletes at all levels of competition. He helped the team doctors with physical examinations and surgical treatment of athletes for the York Revolutions, an independent league baseball organization. Dr. Pfisterer continued this calling upon moving back to New Jersey. He is currently the team orthopedic surgeon for Farleigh Dickinson University in Teaneck, Bergen Catholic High School in Oradell and Park Ridge High School in Park Ridge.

Most importantly, Dr. Pfisterer also has a love for teaching. Each year he returns to his training program to assist in the selection process of the new orthopedic residents. Additionally, he helps train the orthopedic residents in the Rutgers/JCMC Orthopedic Residency Program, as well as the podiatric residents from University Hospital in Newark and Palisades Medical Center in North Bergen.

Dr. Pfisterer (Jr.) met his wife, Edel, a fellow New Jersey native, at The College of the Holy Cross. They currently still reside in Bergen County, with their four young children, Norah, Seamus, Maeve and Ailish. He is an avid car and sports enthusiast, rooting for the Dallas Cowboys, New Jersey Devils, and New York Yankees.

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Pfisterer Orthopaedics - Christine Pfisterer, DO

Christine Pfisterer, DO

Specializes in Physical Medicine and Rehabilitation

Christine Pfisterer, DO, is double board certified by the American Board of Physical Medicine and Rehabilitation and the American Osteopathic Board of Physical Medicine and Rehabilitation, and a subspecialty certification in Pain Medicine. Dr. Pfisterer uses her expertise in physical medicine and pain management to help patients return to daily activities as soon as safely possible, taking into consideration their individual needs. She focuses on the whole patient, and uses a multidisciplinary approach when creating treatment plans for her patients' recovery.

Dr. Pfisterer has been involved in research and has been published in a number of medical journals. She is a member of the American Academy of Physical Medicine and Rehabilitation, North American Spine Society, Spine Intervention Society, Interventional Orthopedics Foundation, New Jersey Society of PM&R, and New Jersey Society of Interventional Pain Physicians.

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Pfisterer Orthopaedics - Daniel Feghhi, MD

Daniel Feghhi, MD

Specializes in Orthopedic Surgery

Daniel Feghhi, MD, is a fellowship-trained orthopedic surgeon specializing in nonoperative and minimally-invasive operative treatment of sports-related injuries of the shoulder, elbow, hip, knee and ankle. He also specializes in shoulder, hip and knee replacements, with additional certification in minimally-invasive robotic-assisted surgery.

Dr. Feghhi works with patients to ensure a full understanding of their orthopedic options including nonoperative treatment. When surgery is necessary, he provides the highest level of care and utilizes the most innovative technology available. Having undergone many orthopedic procedures, Dr. Feghhi understands the patient experience and strives to restore an active lifestyle as soon as possible.

While receiving his medical degree from the University of Medicine and Dentistry of New Jersey, Dr. Feghhi was elected to the Alpha Omega Alpha Honor Medical Society. He earned his undergraduate degree from Rutgers University.

During his advanced sports fellowship program at the University of South Florida/Orthopedics and Sports Medicine, Dr. Feghhi assisted in the care of professional, collegiate and top-tier high school teams, including the Tampa Bay Buccaneers. He received specialized training in a number of the nation's top medical centers, including Boston Children's Hospital and Memorial Sloan Kettering Cancer Center. Dr. Feghhi has been published in numerous journals and given presentations at national professional conferences.

He is a member of the American Orthopaedic Society for Sports Medicine and a member of the American Academy of Orthopaedic Surgeons.

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Pfisterer Orthopaedics - Jason Hymowitz, DPM, MS

Jason Hymowitz, DPM, MS

Specializes in in Sports Medicine, Musculoskeletal Deformities, and Post-traumatic and Cosmetic Surgical Reconstruction

Jason Hymowitz, DPM, MS, is a board-certified foot and ankle surgeon at Pfisterer Orthopaedics. Dr. Hymowitz specializes in sports medicine, musculoskeletal deformities, and post-traumatic and cosmetic surgical reconstruction.

Dr. Hymowitz completed his residency at CarePoint Health | Hoboken University Medical Center in New Jersey with an emphasis on reconstructive foot and ankle surgery, sports medicine, and trauma. He received his Doctor of Podiatric Medicine from Temple University School of Podiatric Medicine. He earned his bachelor's degree from the University of Maryland and he achieved a Master's degree from Drexel University in Philadelphia.

Dr. Hymowitz evaluates and treats the entire spectrum of foot and ankle conditions, including sprains, tears, fractures of the foot and ankle, joint disorders, sports injuries, arthritic conditions of the foot and ankle, lower extremity limb salvage, and wound care. He has expertise in treating ankle ligament instability, achilles tendon tears, plantar fasciitis and bone spurs, bunion deformities, adult acquired flat foot deformity, cavus foot or high arch deformity, pediatric foot/ankle reconstruction, tendonitis, and in providing general podiatric care.

Dr. Hymowitz treats patients of all ages and activity levels with personalized, compassionate, and superior care, consistently supported by the latest technology and evidence-based medicine. He has expertise in managing conditions with conservative care and only uses surgical intervention when appropriate. He offers minimally invasive and arthroscopic techniques for treatment of the foot and ankle.

He holds several advanced certifications, including Comprehensive Internal Fixation/Reconstructive Surgery of the Foot and Ankle and Foot and Ankle Arthroscopy. Dr. Hymowitz also has extensive experience in a multitude of therapies such as platelet-rich plasma (PRP) and BMAC stem cell injections.

While he's not caring for patients at Pfisterer Orthopaedics and Holy Name Medical Center, Dr. Hymowitz maintains a very active lifestyle. His interests include golf, tennis, basketball, skiing, traveling, hiking, running, and supporting the Jets, Mets, Knicks, and Rangers.

Dr. Hymowitz welcomes new and existing patients to Pfisterer Orthopaedics.

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Pfisterer Orthopaedics - Peter Iannuzzi, DPM

Peter Iannuzzi, DPM

Specializes in foot and ankle surgery

Dr. Peter J. Iannuzzi is a distinguished podiatrist, specializing in foot and ankle surgery. He is board certified by the American Board of Foot and Ankle Surgeons, showcasing his expertise and commitment to maintaining the highest standards of patient care. He is also a fellow of the American College of Foot and Ankle Surgery, a prestigious recognition that highlights his significant contributions to advancing podiatric medicine and surgery.

Dr. Iannuzzi's patient-centered approach, dedication to excellence, and commitment to his patients puts him at the forefront of foot and ankle care. Through his continued pursuit of knowledge and innovation, he strives to provide the best outcomes for his patients.

After earning his medical degree from Temple University College of Podiatric Medicine in Pennsylvania, Dr. Iannuzzi did his residency at Atlanta Hospital Medical Center, now part of Emory University in Atlanta, GA. He also underwent specialized training in trauma at Martin Army Hospital in Fort Benning, Georgia. Prior to getting his medical degree, Dr. Iannuzzi obtained a B.S. degree in pharmacy and was a registered pharmacist.

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Pfisterer Orthopaedics - Joseph Rosenbaum, MD

Joseph Rosenbaum, MD

Specializes in hand, wrist, forearm, and elbow surgery

Dr. Rosenbaum is fellowship-trained in all aspects of hand, wrist, forearm, and elbow surgery, and board-certified by the American Board of Orthopedic Surgery. After graduating from medical school at Albert Einstein College of Medicine, he did an internship in Orthopedic Surgery at SUNY Downstate and Kings County Hospitals in Brooklyn. He completed his orthopedic surgery residency at Ohio State University, where his case numbers ranked in the top 1% nationwide in hand, wrist, and forearm procedures.

His fellowship training at the renowned Mary S. Stern fellowship in Cincinnati gave him specialized experience in hand, wrist, and elbow fractures and complex trauma, arthritis, arthroscopy, tendon injuries and tendinitis, and emerging techniques such as "wide-awake surgery," which can be performed comfortably in an office under local anesthesia.

His training also encompasses nerve and microvascular surgery of the upper extremity, as well as the non-surgical management of upper extremity problems. Among other topics, Dr. Rosenbaum's research during training focused on techniques to decrease the pain of injections. He has also received specialized training in performing minimally-painful injections.

A former professional baseball player and an avid racquetball player and cyclist, Dr. Rosenbaum has a special interest in athletic hand and elbow injuries, and has cared for upper extremity problems in athletes of all levels, from recreational "weekend warriors" to those competing in the Olympics, the NCAA, the NFL, and the NHL. During his training, he published nine textbook chapters and five journal articles, including one on the treatment of hand injuries in athletes. He produced ten surgical technique instructional videos featured at national meetings, and was awarded with the top prize at the 2019 AAOS Orthopedic Video Theater.

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Pfisterer Orthopaedics - Ramses-Ayala, PA

Ramses-Ayala, PA


Ramses Ayala, PA-C joined Pfisterer Orthopaedics in 2022. He brought a wealth of orthopedic experience and knowledge to the practice from his previous job at a satellite location for the Hospital for Special Surgery in Stamford, Connecticut. Ramses grew up in New York, and completed his high school studies at Beacon High School in Manhattan, NY. Ramses then went on to complete his undergraduate education at Rochester Institute of Technology. Afterwards he got his physician assistant training at Bronx Lebanon Hospital Center.

Ramses also completed a masters program in public health at the New York Medical College. He has held different positions at various organizations within the orthopedic field. He is happy to treat new and established patients with a multitude of musculoskeletal conditions here at Pfisterer Orthopaedics.

Pfisterer Orthopaedics - Mary Ellen Spohn, PA

Mary Ellen Spohn, PA


Mary Ellen Spohn, PA-C joined Pfisterer Orthopaedics in 2020. She brought a wealth of orthopedic experience and knowledge to the practice from her previous orthopedic job. Mary Ellen grew up in Bergen County, and completed her high school education at Immaculate Heart Academy, in the Township of Washington. Mary Ellen then went on to complete her undergraduate education at Fairfield University.

Afterwards, she got her physician assistant training at Mercy College. She has held several different positions at different organizations within the orthopedic field. Mary Ellen is happy to treat new and established patients with a multitude of musculoskeletal conditions here at Pfisterer Orthopaedics.

Pfisterer Orthopaedics - Se young Oh

Se young Oh


Se young is board certified family nurse practitioner. Se young completed a bachelor's degree in nursing from University of Medicine and Dentistry of New Jersey (currently Rutgers). Following graduation, Se young worked as an RN for 3 years at Newark Health Department to serve the local community. Se young returned to University of Medicine and Dentistry of New Jersey and completed her Master of Science as a family nurse practitioner.

After she became a nurse practitioner in 2012, she has worked in various specialties including Family Medicine, Rheumatology and Pain Management. Se young finds that practicing pain management is extremely gratifying in that she can guide patients to improve their quality of life by using proper pain management modalities. She holds a national certification with American Nurses Credentialing Center.

Pfisterer Orthopaedics - Mae Bell Fuchs , AG-ACNP, CCRN

Mae Bell Fuchs, DNP, AG-ACNP, CCRN


Mae Bell Fuchs, DNP, AG-ACNP, CCRN is a doctorally prepared, board-certified, Adult Gerontology Acute Care Nurse Practitioner with nearly a decade of comprehensive experience as an NP in pain and palliative medicine. She has a nursing background in Perianesthesia, OR, PACU, and CCU. As a Nurse Practitioner, she is an active team member in a growing Pain practice at Holy Name Medical Center. She maintains the highest standards of care through evidence-based practice and her commitment to excellence.

Dr. Fuchs earned her Doctor of Nursing Practice with a minor in Nursing Education at Monmouth University. She obtained her master's degree from Rutgers University, and her bachelor's degree in nursing from Ramapo College where she graduated with Honor's and was inducted into Sigma Theta Tau International. She is credentialed and board-certified by the American Nurses Credentialing Center.