As a resident of Mather Hospital, you will have the distinction of working with, and being mentored by, a remarkable group of board-certified physicians. Our faculty includes nationally recognized clinicians and researchers, with vast levels of experience teaching and guiding students in their journey to becoming a licensed physician. All of our faculty are board certified, some in in multiple specialties, bringing a well-rounded knowledge to each rotation they supervise. The physicians listed below are considered the core faculty of the residency program. 

Jenna Taglienti, MD serves as Program Director for the Psychiatry Residency Program and Medical Director of the Mental Health Clinic.  She is an Assistant Professor at Zucker/Hofstra School of Medicine.  Dr. Taglienti grew up in Oklahoma, however moved to Buffalo as a teenager.  She is a graduate from State University of New York at Buffalo Medical School, and she completed her Psychiatry residency at State University of New York at Stony Brook where she also served as Chief Resident for the academic year 2011-2012.  Board certified, Dr. Taglienti has been at Mather Hospital since 2016.  She previously worked for and taught as an Assistant Professor at Stony Brook Medicine.  She also served as the Assistant Outpatient Clinic Director and Associate Residency Program Director at Stony Brook from 2014-2016.  Passionate about teaching, she was awarded the Psychiatry Residency Faculty Teacher of the Year award in 2015 at Stony Brook.  Dr. Taglienti enjoys implementing techniques to enhance resident wellness.  She incorporated Wellness days into the core didactic curriculum in order to ensure all residents are caring for their own health needs.  She enjoys mentoring residents and has an open door policy, residents are encouraged to come in to speak with her at any time.  She frequently seeks resident feedback and makes adjustments in order to enhance the overall quality of the program.  She enjoys scholarly activity and has had several poster presentations at national conferences.  In her spare time, she enjoys spending quality time with her children at the aquarium, beach, and/or local museums.

Binu Chacko, MD is the Associate Program Director and a core faculty member for the Psychiatry Residency Program. He is an Assistant Professor of Psychiatry at Zucker/Hofstra School of Medicine. Dr. Chacko graduated from Saba University School of Medicine, Netherland-Antilles. He completed his General Psychiatry residency at Jamaica Hospital Medical Center where he served as Chief Resident for the academic year 2010-2011. He then completed his Child & Adolescent Psychiatry fellowship at Westchester Medical Center, New York Medical College, Valhalla, where he served as Chief Fellow for the academic year 2012-2013. He is Board Certified and has worked in the outpatient settings in the public and private sector before he joined Mather Outpatient Mental Health Clinic in 2018. He is passionate about decreasing mental health stigma within his community, currently serves as Secretary of AKMG Greater New York (South Asian National medical organization in existence for 40 years), and will serve as the next President of the NY chapter. He enjoys teaching residents and in his spare time loves playing basketball, tennis, competing in the Spartan Race, and travel.

Kristin Unterweiser, C-TAGME is the Program Coordinator for the Psychiatry Residency Program.  She has worked in the healthcare industry for almost 17 years.  Prior to joining Mather Hospital in 2016, Mrs. Unterweiser worked at Stony Brook Hospital for almost eleven years.  She began her career at Stony Brook in 2009 as a front desk clerk for Stony Brook Primary Care, followed by two years as the Fellowship Coordinator for Infectious Diseases, and spent the last six and a half years of her career at Stony Brook as the Residency and Medical Student Coordinator for the Department of Emergency Medicine.  Mrs. Unterweiser enjoys spending time with her husband and four stepsons, friends and family.  She also enjoys listening to music, cooking, baking, painting and crafts of all sorts.

Donna Donoghue, MDDonna Donoghue, MD is Director of Psychiatry and faculty member of the Psychiatry Residency Program.   She serves as one of the primary inpatient psychiatry attendings supervising residents.  A graduate from University of Maryland Medical School, she completed her Psychiatry residency at Hillside Hospital/Long Island Jewish Hospital, where she also served as Chief Resident for the academic year 1999-2000.  Board certified, Dr. Donoghue previously worked for and taught as an Assistant Professor at Stony Brook Medicine.

Hammad Mohsin, MDHammad Mohsin, MD is a core faculty member of the Psychiatry Residency Program.  A graduate from Nishtar Medical College, Multan, Pakistan, he completed his Psychiatry residency at Albert Einstein College of Medicine, Bronx Lebanon, where he also served as Chief Resident for the academic year 2013-2014.   He also completed two Fellowships  in Addiction Psychiatry at Albert Einstein College of Medicine, Montefiore Medical Center and Psychodynamic Psychotherapy, New York Medical College.  Board certified, Dr. Mohsin previously worked as an Assistant Professor and Medical Director at Montefiore Medical Center, Chemical Dependency program.

Juliet Nichols, MDJuliet Nichols, MD is as a core faculty member of the Psychiatry Residency Program.  Dr. Nichols graduated from Carol Davilla University of Medicine & Pharmacy in Bucharest, Romania, completed her psychiatry residency at Stony Brook University Hospital and a Geriatric Psychiatry fellowship at Albert Einstein College of Medicine at Long Island Jewish Medical Center.  She is board certified in Psychiatry.

Alan T. Kaell, MDAlan T. Kaell, MD serves as the Director of Resident Scholarly Activity and Faculty Development at Mather Hospital. Board certified in Internal Medicine, Rheumatology and Geriatrics, Dr. Kaell has been an active investigator since 1983, focusing on rheumatology and immunology, resulting in numerous published research articles and chapters. He has lectured on his findings internationally, has had privileges at 4 major hospitals in Suffolk County and has been a reviewer and editor of various national journals for over 30 years. Dr. Kaell has conducted over 20 Phase II, III and IV clinical trials for anti-rheumatic therapies and has been the recipient of NIH and Fetzer research grants. He has taught medical students, residents and fellows for the past 30 years and is currently a participant in the Academy of Rheumatology Medical Educators, whose mission is to develop, implement and assess novel teaching techniques by incorporating Patient Reported Outcomes and evaluating patient and physician behavioral changes.

Greg Haggerty, Ph.D., received his B.A. in psychology from St. John’s University and his Ph.D. in clinical psychology from Adelphi University. His completed his APA-Accredited clinical psychology internship at Zucker Hillside Hospital/Northwell Health (formally North Shore-LIJ Health System) and received post-doctoral research training at Zucker Hillside Hospital’s Division of Psychiatric Research. Dr. Haggerty has served as the director of research for Nassau University Medical Center’s Psychiatry department and was chair of the hospital’s Institutional Review Board (IRB). He has worked as chief psychologist for NUMC’s adolescent inpatient unit and as supervising psychologist in NUMC’s adult outpatient clinic where he supervised child and adolescent psychiatry fellows, psychiatry residents, psychology externs and psychology interns (as part of an APA-accredited psychology internship). He maintains an active research program focusing on personality assessment, training, psychopathology classification, and treatment outcome. Dr. Haggerty has received funding for his research from the NIMH and American Psychoanalytic Association and has active research collaborations with Massachusetts General Hospital, University of Michigan, St. John’s University, Adelphi University and Austin Riggs Hospital.

Ateaya Lima, MD is Director of the Psychiatry Consult Liaison Service at Mather Hospital and is one of the core faculty members in the psychiatry residency training program.  Dr. Lima is board certified in Adult Psychiatry and completed her Consultation and Liaison Fellowship at Northwell-Long Island Jewish Medical Center.  She also served as chief resident during her residency training from 2015-2016 prior to completing her fellowship.  She began working at Mather in 2018 and has been a welcomed addition to the faculty.  Dr. Lima has a wealth of knowledge and has completed many scholarly activities.  She has presented her work at both national and international conferences.  Dr. Lima has received rave reviews from the residents with regards to her teaching and mentorship and was voted as Northwell Health Teacher of the Year for 2018-2019.

Umer Farooq, MD is the Medical Director of Emergency Psychiatry at Mather Hospital and part of the core faculty.  He is board certified in both Adult Psychiatry and Addiction psychiatry having completed his Addiction Fellowship at Northwell LIJ Hospital.  Dr. Farooq has held several leadership positions throughout his career in psychiatry. Prior to coming to Mather Hospital in 2018, he was the Director of Addiction services at Nassau University Medical Center. In addition to his clinical service, he has been published multiple times and frequently authors book chapters.  He is a valuable faculty member who is passionate about teaching and regularly receives glowing reviews from the residents.  In his spare time he enjoys playing squash with his daughter.

Meena Azizi, MD currently serves as Medical Director of Child & Adolescent Psychiatry.  She serves as an inpatient attending on 2N: Mather’s 10 bed inpatient adolescent psychiatry unit and as Medical Director of the Adolescent Partial Hospital and Adolescent Eating Disorder Program. She is also involved in resident teaching as part of the child curriculum. She received her B.S. at Columbia University and her medical degree from Michigan State University. She completed both her adult psychiatry residency and child and adolescent psychiatry fellowship training at Stony Brook University Medical Center.

Joan C. Faro, MDJoan C. Faro, MD is the Chief Medical Officer at Mather Hospital and the President of Harbor View Medical Services, a physician practice group that is part of the Mather Health System. As a member of the hospital’s executive team, Dr. Faro works on a number of initiatives including evaluating and implementing best practices in quality and patient safety, developing physician leaders, motivating change, and developing methodologies for measuring, tracking and reporting both process and outcomes measures to ensure improvement. Dr. Faro believes that physicians must take active roles in designing systems to ensure optimal healthcare delivery and that they should begin preparing themselves for leadership opportunities early in their career. She serves as faculty for the GNYHA Clinical Quality Fellowship Program, designed to deliver formal training in quality improvement principles and techniques to physicians and other healthcare providers. Dr. Faro earned her medical degree from Stony Brook Medicine and completed her residency in Internal Medicine and a fellowship in General Medicine at Stony Brook Hospital. She went on to serve as a member of the Internal Medicine faculty at Stony Brook Medicine from 1985 until 1994. She is a Fellow of the American College of Physicians and has served on several of the national committees of the Society for Hospital Medicine, including Leadership and Quality. She joined APM/CSC Healthcare Consulting in 1994 while earning her MBA from NYU Stern School of Business. She has been at Mather since 2001. In her spare time, Dr. Faro collects wine and enjoys travel, gourmet cooking and a variety of winter sports.

Michael TofanoMichael Tofano, MD serves as Program Director of the Internal Medicine Residency Program.  Dr. Tofano completed his residency at St. Vincent’s Hospital and Medical Center in New York in 1985. He served as Chief Resident for the academic year 1985-1986, and then completed a cardiology fellowship at Robert Wood Johnson Hospital in New Jersey.  After many years as a practicing cardiologist, Dr. Tofano transitioned to hospital medicine in 2007, at the UMASS Memorial Health Care System in Worcester, Massachusetts.  In 2009, he was appointed the Associate Chief of Hospital Medicine for UMASS Memorial Health Care System, and the Director of Hospital Medicine at Marlboro and Clinton Hospitals, members of the UMASS Memorial System, developing quality initiatives in cardiology that led to Marlboro Hospital achieving a number two ranking state-wide for AMI survival. Dr. Tofano joined Mather in 2012 as Hospitalist Director, and joined the Residency Program in 2013. In his free time, Dr. Tofano enjoys spending time with his family, playing basketball and baseball with his two sons and frequenting the many fine restaurants in the Port Jefferson area with his wife.

Robert Giacobbe, DORobert Giacobbe, DO serves as Associate Program Director for the Internal Medicine Residency Program, focusing on the residency’s Ambulatory Continuity Practice.  Dr. Giacobbe graduated from New York College of Osteopathic Medicine in 1990, completed a rotating internship at Peninsula Hospital in Queens and an Internal Medicine residency at Winthrop University Hospital.  Dr. Giacobbe joins our faculty after 21 years in private General Internal Medicine practice in Port Jefferson during which time he was an active member of the Mather Medical Staff serving on numerous committees.  He also currently serves as the Medical Director of Mather’s physician group, Harbor View Medical Services and is a strong advocate for high quality Primary Care.  Dr. Giacobbe is also a clinical instructor for Stony Brook Medicine.  In his spare time, he enjoys cycling and spending time with his family.