Meet Our Team

NewYork-Presbyterian

Outpatient Services

Weill Cornell Outpatient Team

Jenna Rosenfeld MS, RD, CDN, CNSC

Jenna Rosenfeld MS, RD, CDN, CNSC

Supervisor

Expertise: adults, pediatrics, nutrition support

Jenna joined NYP/Weill Cornell in 2015 as an inpatient and then senior dietitian. Jenna previously worked as a dietitian at Kings County Hospital Brooklyn NY and as an executive assistant in the service industry. Jenna completed a dietetic internship and MS in nutrition education in 2013 at Teachers College, Columbia University. She has a BA in political science from the University of Wisconsin, Madison, WI and is a Certified Nutrition Support Clinician. Jenna is passionate about providing nutrition care and support for patients, families and communities. She leverages technology to streamline processes, enhance education and expand access.

Meredith Liss, MA, RD, CDN, CDCES

Meredith Liss, MA, RD, CDN, CDCES

Senior Dietitian/Nutritionist

Expertise: adult, infectious diseases

Meredith joined NYP in 1994 after working Terence Cardinal Cooke Healthcare Center. Meredith completed her Dietetic Internship at New York Hospital in 1992. She has an MA in Applied Physiology from Columbia University Teachers College and BS in Nutrition from Penn State University. Meredith is a Certified Diabetes Education Specialist at the Ambulatory Care Network Center for Special Studies. She has extensive experience and is a specialist in the care of patients living with HIV/AIDS including but not limited to diabetes, heart disease, chronic renal disease, obesity/weight management and irritable bowel syndrome. With authenticity and the ability to connect with people, Meredith empowers patients to work towards healthy and sustainable lifestyle changes.

Mary Montgomery, MPH, RD, CDN

Mary Montgomery, MPH, RD, CDN

Senior Dietitian/Nutritionist

Expertise: ketogenic diet, general pediatrics, pediatric weight management

Mary joined NYP in 2012 after working at the Vanderbilt University Medical Center and Metro Nashville General Hospital. Mary completed her internship in 1986. She has an MPH in nutrition from the University of Tennessee and BS in nutrition from the University of Alabama. She co-authored The Ketogenic Diet-Induced Weight Gain with Decreased Energy Consumption (ICAN February 2013) and Enteral and Parenteral Applications of Ketogenic Diet Therapy (ICAN October 2011). She is a co-investigator in A Pilot Study of Ketogenic Diet and Metformin in Glioblastoma: Feasibility and Metabolic Imaging. Mary has extensive experience and is nationally recognized for using the ketogenic diet to treat intractable epilepsy and other disorders. She works in the NYP Pediatric Epilepsy and Ambulatory Care Network general pediatric, Health for Life and NYP Outpatient Nutrition practices. Her primary goal is to work closely with patients and families to develop effective dietary therapies customized to the needs of each patient.

Nancy E. Addison, MPH, RD, CDN, CDCES, CLC

Nancy E. Addison, MPH, RD, CDN, CDCES, CLC

DIETITIAN/NUTRITIONIST

Expertise: adult, women’s health, diabetes, gestational diabetes

Nancy joined NYP in 2008 as the Ambulatory Care Network Clinical Nutritionist at the Charles Rangel Practice after working at Maimonides Medical Center and the UNITE Health Center. Nancy transferred to the Weill Cornell campus in 2017 where she works in Ambulatory Care Women’s Health and NYP Outpatient Practices. Nancy completed her Dietetic Internship at Hunter College in New York in 2003. She has an MPH and BS in Dietetics also from Hunter College. Nancy is a Certified Diabetes Education Specialist and Certified Lactation Counselor. She counsels patients with diabetes, through pregnancy (including gestational diabetes), weight management and cardiovascular diseases among other nutrition related problems and for health and well-being.

Emily Buchholtz, RD, CDN, CSO

Emily Buchholtz, RD, CDN, CSO

Dietitian/Nutritionist

Expertise: adult oncology

Emily joined NYP in 2017 after working at Lenox Hill and SUNY Downstate Hospitals and the Mt Sinai Beth Israel Outpatient Cancer Center. Emily completed her dietetic internship at Long Island Jewish (Northwell) in 2015. She has a BS in Nutrition from Indiana University. She is a Certified Specialist in Oncology Nutrition. Emily is an advocate and proponent of nutrition (and exercise) as being integral to caring for patients through the prevention, treatment and survivorship continuum of cancer care.

Alexis Fissinger, MS, RD, CDN, CSP

Alexis Fissinger, MS, RD, CDN, CSP

Dietitian/Nutritionist

Expertise: pediatric digestive diseases

Alexis joined NYP in 2015 as a post-graduate fellow and was hired at NYP’s Morgan Stanley Children’s Hospital before transferring to her current position. Alexis completed her MS in Human Environmental Sciences at the University of Alabama and has a BS in Nutrition and Dietetics from Montclair State University, NJ. Alexis works at the Phyllis and David Komansky Center for Children's Health and provides comprehensive individualized nutrition care and counseling for infant and pediatric patients/families with gastrointestinal disorders including but not limited to food allergies and intolerances, eosinophilic esophagitis (EoE), Crohn’s and ulcerative colitis, celiac disease, irritable bowel syndrome (IBS), gastroesophageal reflux disease, failure to thrive, and other functional bowel diseases.

Jessica Gold RD, CDN, CNSC

Jessica Gold RD, CDN, CNSC

Dietitian/Nutritionist

Expertise: adult digestive diseases and related weight management

Jessica joined NYP Millstein Hospital Columbia University as an inpatient nutritionist Columbia in 2018 after working at University Hospital NJ and transferred to her current position in 2019. Jessica completed her dietetic internship on 2016 at Rutgers University. She has a BS from University of Wisconsin, WI. She is a Certified Nutrition Support Clinician. She works at the Center for Advanced Digestive Care and provides individualized nutrition care for patients with digestive diseases including functional GI disorders, pancreatic diseases and post-surgical nutrition therapy. Jessica is an advocate for improving patient’s quality of life throughout positive, sustainable lifestyle changes.

Francesca Maglione RD, CDN, CSO

Francesca Maglione RD, CDN, CSO

Dietitian/Nutritionist

Expertise: adult and pediatric oncology

Francesca joined NYP in 2018 after working as an oncology dietitian at Holmes Regional Medical Center in Melbourne, Florida. Francesca completed her dietetic internship and BS in Dietetics and Nutrition from Keiser University, in Port Saint Lucie, FL. She is a Board Certified Specialist in Oncology Nutrition. Francesca works at the Sandra and Edward Meyer Cancer Center and is passionate about providing evidence-based individualized nutrition care to improve health outcomes for patients throughout the cancer care continuum. She is committed to promoting health equity for underprivileged populations.

Stephanie Roit MS, RD, CDN, CSO

Stephanie Roit MS, RD, CDN, CSO

Dietitian/Nutritionist

Expertise: adult oncology, digestive diseases

Stephanie joined NYP as an inpatient oncology dietitian in 2017 after working as a Clinical Aide at NYU's Student Health Center and Administrator at NYU's Stern School of Business. She transferred to her current position in 2019. She completed her dietetic internship at NewYork-Presbyterian in 2016 and has a MS in Clinical Nutrition and BS in Biology from New York University. She is a Certified Specialist in Oncology Nutrition. Stephanie combines her passions for food and science providing individualized nutrition counseling for patients during their medical, radiation and/or surgical cancer treatment to help them get their best nutrition and maximize their quality of life.

Alexandra Rosenstock, RD, CDN

Alexandra Rosenstock, RD, CDN

Dietitian/Nutritionist

Expertise: adult digestive diseases and related weight management

Alexandra joined NYP in 2014 after working at New York University Medical Center taking care of patients with liver, kidney, gastrointestinal, hepatobiliary disorders. Alexandra completed her dietetic internship at Brigham and Women’s Hospital in Boston in 2010 and BS in Nutrition at New York University.Alexandra works at the Center for Advanced Digestive Care and provides comprehensive individualized nutrition care for patients with digestive diseases using an integrative approach in close collaboration with GI doctors. She is passionate about helping patients with complex functional digestive disorders improve their health and wellbeing.

Gabrielle Siragusa, RDN, CDN, CDCES

Gabrielle Siragusa, RDN, CDN, CDCES

Dietitian/Nutritionist and Diabetes Care and Education Specialist

Expertise: adult diabetes, weight management, heart health

Gabrielle joined NYP in 2017 after working as a consultant dietitian for Nutricopia Inc. and for the Department of Public Health in San Francisco, CA before moving to New York. Gabrielle completed her dietetic internship at Montana State University in 2013. She has a BS in Food and Nutrition from California State University and is a Certified Diabetes Education Specialist and Diabetes Prevention Program Coach. Gabrielle works at the Weill Cornell Internal Medicine Associates (WCIMA) practices in the Ambulatory Care Network and provides individualized nutrition counseling for adults including but not limited to weight management, diabetes and cardiovascular and other chronic diseases to help patients achieve their health related goals and well-being.

Danielle Staub MS, RD, CDN

Danielle Staub MS, RD, CDN

Dietitian/Nutritionist

Expertise: adult digestive diseases and related weight management

Danielle joined NYP in 2015, initially with Division of Digestive and Liver Diseases at NewYork-Presbyterian/CUMC campus, after working at Lenox Hill Hospital, NY and the Hospital of the University of Pennsylvania. She transferred to NYP/Weill Cornell in 2017. Danielle completed a BS in Health Sciences at Ithaca College and dietetic internship/MS in Clinical Nutrition at New York University. She co-authored a chapter in Obesity Care and Bariatric Surgery and has presented nutrition lectures for the American Liver Foundation. She works at the Center for Advanced Digestive Care and provides individualized nutrition care for patients with digestive diseases including non-alcoholic fatty liver disease, assisting patients to structure well-balanced eating plans to achieve their overall health goals.

Stacy Kaminski MS, RD, CDN, CDCES

Stacy Kaminski MS, RD, CDN, CDCES

Dietitian/Nutritionist

Expertise: adult bariatric surgery

Stacy joined NYP in 2019 after working as an inpatient dietitian at North Shore University Hospital and NYU Langone Hospital, Long Island. Stacy completed her dietetic internship at Northwell Health in 2017. She has a MS in Nutrition from Hunter College and BS in Business Administration from University at Buffalo. Stacy is a Certified Diabetes Care and Education Specialist (CDCES). She works for the Center for Advanced Digestive Care division of GI Metabolic and Bariatric Surgery where she counsels pre- and post-operative bariatric surgery patients on nutritionally sound ways to achieve long lasting weight loss. She also serves as a moderator for the Cornell GI Metabolic & Bariatric Surgery Program’s bi-monthly support group. Through her 1:1 nutrition counseling and support group sessions, Stacy advocates for the adoption of healthful nutrition and lifestyle choices to help reduce the incidence of obesity and other chronic diseases.

Shira Sussi, MS, RD, CDN

Shira Sussi, MS, RD, CDN

Dietitian/Nutritionist

Expertise: adult, diabetes, gestational diabetes, weight management, heart health

Shira joined NYP in 2015 working as an inpatient Clinical Dietitian at NYP/Lower Manhattan Hospital, then at the NYP Ambulatory Care Network and NYP Outpatient Nutrition Practices at NYP/Columbia Irving Medical Center before transferring to her current role. She works in the NYP Outpatient Nutrition Practice. Prior to this Shira worked in publishing as a writer and editor. Shira completed her Dietetic Internship at NewYork Presbyterian Hospital in 2015. She has a MS in Clinical Nutrition from New York University and a BA in Journalism from the University of Wisconsin-Madison. She believes that eating for everybody should be enjoyable. She counsels patients with acute and chronic medical conditions including but not limited to diabetes, cardiovascular diseases, chronic kidney disease as well as weight management.

Jaimie Uva, RD, CDN

Jaimie Uva, RD, CDN

Dietitian/Nutritionist

Expertise: adult, infectious diseases

Jaimie joined NYP in 2001 after working at The Rockefeller University Hospital. Jaimie completed her Dietetic Internship at NewYork Presbyterian in 2001 and has a BS in Clinical Nutrition from New York University. She works at the Ambulatory Care Network Chelsea Center for Special Studies with a dynamic interdisciplinary team caring for patients with HIV/AIDS and in prevention and wellness with the LGBTQAI community. Jaimie's experience, knowledge and enthusiasm are pillars for collaboration with her clients in a highly personalized approach to care. She believes healthy eating is essential for mental and physical well-being.

Laurel Lorenzo BA

Laurel Lorenzo BA

Billing and Scheduling Liaison

Laurel joined NYP in 2014 as a Registrar and was promoted to a Billing and Scheduling Liaison in 2019. Laurel previously worked as a cashier at Key Food Supermarkets and customer service representative for a summer youth employment program. She graduated from Mercy College on honor roll with a BA in Psychology. Laurel coordinates all aspects of patient access to nutrition and diabetes self-management education services including supporting patients connect to their MyChart portal, schedule appointments and verifying their insurance coverage. She is passionate about providing excellent customer service and is bilingual in English and Spanish.