Expert infusion care, guided by physicians you can trust.
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Specialty Infusions is a physician-supervised infusion suite in Teaneck, NJ, built on one simple idea: patients deserve a specialist MD onsite for every visit, not just on call. We're one of the very few MD-staffed infusion centers in New Jersey, and that difference is what earns patient and physician trust every day.
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Every treatment plan starts with physician oversight and ends with clear communication back to your referring doctor. From insurance coordination to a calm, private recliner setup, we handle the details so patients can trust that they're in expert hands from check-in to discharge.
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We partner with referring physicians across specialties, rheumatology, gastroenterology, neurology, and more, who trust us to manage the infusion side of care with the same attention they'd give their own patients. Our closed-loop coordination means your office stays informed every step of the way.
Meet Dr. Anna Zezon
Dr. Anna Zezon is a board-certified rheumatologist who completed dual fellowships in Rheumatology and Geriatrics at NYU Langone Medical Center, where her research focused on a geriatric cohort with systemic lupus erythematosus.
She completed her residency at Albert Einstein College of Medicine, where she published two papers on the rheumatic manifestations of autoimmune thyroid disease, after undergraduate studies at Columbia University and medical school at the Sackler School of Medicine in Israel.
Practicing since 2013 with NYU and HVA Medical Group, Dr. Zezon founded Arthritis & Rheumatic Care in Teaneck, NJ in 2019, and personally reviews every Specialty Infusions patient's chart and treatment plan.
Alongside Dr. Zezon, every visit
Libby Frenkel, FNP-C
Nurse PractitionerLibby Frenkel, FNP-C, is a board-certified Family Nurse Practitioner with a strong interest in autoimmune and inflammatory rheumatic diseases. She earned her Bachelor of Science in Nursing from Pace University and her Master of Science in Nursing as a Family Nurse Practitioner from William Paterson University. She has completed the American College of Rheumatology Advanced Rheumatology Course and the Rheumatology Advanced Practice Providers Step-Up to Rheumatology training. Libby is committed to providing comprehensive, compassionate care to patients with rheumatic and autoimmune conditions.
Anna Mamaev, RN
Infusion NurseAnna Mamaev, RN is a compassionate and dedicated Registered Nurse who has been part of our Rheumatology team since June of 2026. With a background in Emergency Department Nursing, Anna brings strong clinical experience, a calm presence, and a caring approach to every patient interaction. She takes pride in creating a welcoming environment where patients feel heard, respected, and truly cared for. Her passion for nursing comes from making a meaningful difference in the lives of those she serves.
Terri Newhouse
Practice ManagerTerri Newhouse serves as the Practice Manager for Arthritis & Rheumatic Care, bringing a lifelong dedication to medicine and healthcare management to her leadership role. With a Bachelor’s Degree in business administration from Rutgers University, Terri has accumulated extensive operational expertise across diverse medical specialties, including Primary Care, Infectious Disease and Gastroenterology. Terri’s professional philosophy is defined by a commitment to patient-centered care and a passion for supporting patients and their families. As an administrative leader, she focuses on empowering physicians with the robust operational support necessary to deliver exceptional, high-quality medical service.

