Dr. Rosagna Rubiano, DNP joined Columbia Health in April 2013 as the Associate Director for Patient Services at Medical Services. Prior to joining Columbia Health, Rosagna served as the Family Nurse Practitioner in the Ambulatory Internal Medicine Practice at New York Presbyterian Hospital. She is an experienced family nurse practitioner trained at Columbia University School of Nursing.
D.N.P, Pace University
F.N.P, Columbia University
M.B.A, New York University Stern School of Business
Certifications and Licensure:
ANCC, Family Nurse Practitioner
Family Nurse Practitioner, New York Presbyterian Hospital
Registered Nurse, New York Presbyterian Hospital
Antwi, F., Fazylova, N., Garcon, M., Lopez, L., Rubiano, R., Slyer, J. (2012). The effectiveness of web-based programs on the reduction of childhood obesity in school-aged children: A systematic review. Joanna Briggs Institute.
Dr. Gregoriy Grenader officially joined Columbia Health in June 2012. Gregoriy earned his B.A. in Psychology at CUNY-Brooklyn College, graduating with honors. He became a certified emergency medical technician and worked as an EMT before earning his Doctor of Osteopathic Medicine degree from the New York College of Osteopathic Medicine. Dr. Grenader completed his post-graduate residency training in Family Practice at North Shore/Long Island Jewish Plainview Hospital in Long Island, NY.
Sharon Sperling-Silber, N.P., ANP-BC, is a graduate of Clark University in Worcester, Mass. She received her nursing degree from Montgomery College in Maryland and Masters of Science in Adult/Geriatric Nurse Practitioner Program from the University of Maryland in Baltimore.
Sharon spent several years working as an Operating Room Nurse, before attaining her masters degree and relocating to New York City as a Nurse Practitioner with the geriatric population in a long term care facility.
Dr. Susan Pincus joined Columbia Health in May 2011 in the Medical Services Urgent Care unit. She has worked as a primary care physician in New York City for the past 30 years. Dr. Pincus completed her residency in Family Medicine at Montefiore Medical Center in the Bronx. She also completed for fellowship in Adolescent Medicine at Mt. Sinai Medical Center in Manhattan.
M.D., University of Michigan Medical School
Certifications and Licensure:
Licensed in the state of New York to practice medicine
Serena Baker joined Columbia Health in 2010. Prior to joining Columbia Health, Serena worked as a nurse at the American Embassy in San Salvador, El Salvador, where she attended to the health care needs of Foreign Service members and their families. She was also responsible for providing immunizations and treating patients according to physician-approved protocols. In addition, she created and delivered disease prevention discussions, in both English and Spanish, on topics ranging from hypertension to food safety. Serena is interested in health promotion and public health.