Our Support Staff


Our nurse practitioners are board-certified and licensed to practice medicine. They assist our physicians in diagnosing and treating patients, ordering and reviewing diagnostic tests, and writing prescriptions.

Photograph of Beverly Elliott, BSN, MS, ANP-C

Beverly Elliott, BSN, MS, ANP-C

Beverly Elliott has been with North Suffolk Cardiology since 2004. She received her BSN degree from the University of Miami and her MSN degree from Molloy College, and is board certified in AANP and ANCC. Ms. Elliott has outstanding experience and expertise in electrophysiology and device arrhythmia management. Beverly is a certified cardiac device specialist (CCDS) and manages North Suffolk Cardiology's device clinic; helping hundreds of our patients to live with and maintain normal function of their pacemakers and defibrillators.

Photograph of Nicole Casanova

Nicole Casanova, MS, CCRN, NP-C

Nicole Casanova is a Family Nurse Practitioner. She is nationally certified by the American Association of Nurse Practitioners (AANP).  Nicole received her Master of Science degree from Stony Brook University and her undergraduate degree from Molloy College. She began her nursing career in 2010 and has a strong critical care background.  She is an active member of the AANP as well as the International Honor Society of Nursing-Sigma Theta Tau. Nicole has a true passion for cardiology and believes in providing compassionate, patient-centered care. 

Photograph of D Schwartz

Deborah Schwartz,  BSN, MS, ANP-C, CEPS

Deborah Schwartz received her Bachelors of Nursing at SUNY Brockport and her Masters of Science at Stony Brook University. She is board certified (AANP) and has practiced as a nurse practitioner since 2004 developing a unique set of skills. She brings a significant amount of experience in a diversity of areas including cardiac electrophysiology, clinical cardiology and cardiology research. She was recently recruited from the Division of Cardiology at Stony Brook University Medical Center and is a certified electrophysiology specialist (CEPS) with extensive experience in antiarrhythmic medications, cardiac arrhythmia management, peri procedural management of cardiac invasive procedures and clinical cardiology.


Photograph of Elisa Stickelman,  CANPC

Elisa Stickelman,  BSN, MS, ANP-C

Elisa Stickelman is board certified by the American Academy of Nurse Practitioners as a Nurse Practitioner in Adult Health since 2003. She earned her Bachelor of Science in Nursing at Adelphi University and her Masters of Science in Nursing at New York State University at Stony Brook.  Her area of interest is in general clinical cardiology and nuclear stress testing.  She has been with North Suffolk Cardiology since 2005.


Registered Dietitian

Our Nutrition Program has become a great tool for our patients to lead a healthier life.  Our dietitian works with patients to create a personalized nutrition plan based on their needs, and helps make positive lifelong eating and behavior changes.

Photograph of Jennifer Shanahan

Jennifer J. Shanahan, RD

Jennifer J. Shanahan is a Registered Dietitian who brings 20 years of experience to the Nutrition Program and the patients of North Suffolk Cardiology.  She uses Medical Nutrition Therapy, MNT, to develop individualized, patient specific meal plans. Patients are provided with nutrition advice developed from evidence based research, that is translated into practical and workable nutrition plans. She supports patients with a personalized meal plan to help manage patients with heart disease, and for those patients with risk factors of heart disease such as high cholesterol, hypertension, obesity, and diabetes. She helps patients make positive lifelong eating and behavior changes.  Jennifer J. Shanahan R.D. received her Bachelor's Degree in Management from Stony Brook University, and completed her dietetic internship with Masters of Nutritional Science at Long Island University, C.W. Post.