John L Ricci MD

Closed
450 Lakeville Rd
New Hyde Park, NY 11042
Matthew J. Weiss, MD, FACS, is deputy physician-in-chief and director of the surgical oncology program at Northwell Cancer Institute. He's a board-certified surgeon specializing in pancreas and liver diseases.With a relentless work ethic and strong desire to help people, Dr. Weiss always knew he wanted to be a doctor. "I picked a field that allows me to tackle difficult problems and truly make an impact," he says.Dr. Weiss completed his residency in general surgery at Johns Hopkins Hospital and was dual fellowship trained in surgical oncology and hepatobiliary surgery at Memorial Sloan-Kettering Cancer Center. He was previously chief of hepatobiliary surgery at Johns Hopkins, where he was also director of the Pancreas and Liver Multidisciplinary Clinics and the complex general surgical oncology fellowship. He also performed the first robotic Whipple at Johns Hopkins University. Joining Northwell in 2019, Dr. Weiss created a multidisciplinary team of surgeons, medical and radiation oncologists, geneticists, and other specialists who collaborate to create unique treatment plans for patients across the health system. "Every cancer is different, and every patient is different," he says. "Communication among multiple providers is the best way to ensure you're treating the entire person, properly," he says. Dr. Weiss's team also works with scientists from Cold Spring Harbor Laboratory and Feinstein Institutes for Medical Research to develop and run groundbreaking clinical trials. An international leader in both liver and pancreas surgery, Dr. Weiss has authored over 250 peer-reviewed publications in the field, and he's currently a professor of surgery and oncology at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell. "Understanding both the science of the disease and the technological aspect of surgery is so important," he says. Dr. Weiss focuses on using cancer genetics to help find the right surgical approach for patients. When possible, he operates robotically using small incisions for faster healing, so patients don't have to wait as long to receive additional therapies that can improve outcomes. With recent advancements in the field, Dr. Weiss has been able to successfully perform high-risk surgeries that were turned down by other institutions. "Being a surgeon is a tremendous responsibility, and I don't take it lightly," he says. "I truly and deeply care about my patients and their families-I get to know them as people and am there throughout their entire journey. That's what I'm most proud of as a doctor."
Own this business?
See a problem?

You might also like

Danielle DePeralta, MD
Internal medicine practitioners, Psychiatrists and psychoanalysts

Danielle DePeralta, MD

Danielle DePeralta, MD, FACS is double board-certified in surgery and surgical oncology, with dual fellowship training in complex surgical oncology and hepato-pancreato-biliary surgery. She specializes in surgical treatment of diseases of the liver, pancreas, and gastrointestinal tract. Named a Castle Connolly Top Doctor in 2021 and 2022, Dr. DePeralta is a leader in her field and is an active member of the Society of Surgical Oncology, American College of Surgeons and International Hepatopancreatobiliary Association. She is the Northwell Physician Champion for the Canopy Cancer Collective, a multi-center team that focuses on improving care for patients with pancreatic cancer. She is also heavily involved in clinical trials and innovations related to cancer care, including regional therapies that target cancer that has spread but is still localized to the liver or peritoneal cavity. She was instrumental in bringing pressurized intraperitoneal aerosolized chemotherapy (PIPAC)-a treatment that can help those with few options-to New York. Long Island Jewish Medical Center is now one of only three sites in the nation to offer such therapy.Treating some of the most aggressive cancers, Dr. DePeralta knows she's seeing patients at their most vulnerable moments. While focusing on giving them their lives back, she often forms close relationships with her patients. "I try to treat all of my patients the way that I hope someone would care for my mother, my husband, my son," she says.Connecting with patients meaningfully is important to Dr. DePeralta, who has a special interest in the human side of medicine. She studied philosophy in college alongside molecular biology and biochemistry. She also completed a medical ethics fellowship during her surgical residency training at Massachusetts General Hospital/Harvard Medical School. Her training has taken her around the world to Uganda, Panama and India, which has fueled her interest in global health and quality health care for all.Her compassion is also shared by her team, from the care navigators and office staff to the nurses and residents. "We're very lucky to be so well-supported with a great team that cares a lot about our patients," Dr. DePeralta says.Having a team like this serves to strengthen the bonds with her patients, who she learns from each day. "They teach me that you have to keep trying-keep pushing and it's my job to keep supporting them.It's extremely rewarding to treat someone who was very sick, who you see a year down the road is cancer-free and living a normal life."
United StatesNew YorkNew Hyde ParkJohn L Ricci MD

Partial Data by Infogroup (c) 2025. All rights reserved.

Partial Data by Foursquare.