George P. Dempsey, M.D.

Medical Director, East Hampton Family Medicine

Medical Education:

  • 1989 Doctor of Medicine
  • 1985 – 1989 Mayo Medical School, M.D. PhD Program

Residency and Fellowship:

  • 1992 – 1993 State University of New York at Stony Brook, Department of Family Medicine
  • 1989 – 1992 State University of New York at Stony Brook, Department of Family Medicine

Certification: 2016 Re-certified, American Academy of Family Physicians Board. Fellow, American Academy of Family Physicians

Hospital Privileges: 2002-Present; Southampton Hospital, Southampton, NY

Languages: English, French, Spanish

Maryellen V. Benito, D.O.


Medical Education:

  • 2005 – 2010 New York College of Osteopathic Medicine (NYCOM); Doctor of Osteopathy
  • 2007 – 2008 New York University School of Medicine; Department of Pathology; Post-Sophomore Fellow

Residency: 2010 – 2013 Southampton Hospital; Family Medicine


  • 2004 – 2005 The Institute of Cancer Genetics at Columbia University College of Physicians and Surgeons
  • 2003 – 2004 The United States Army of Medical Research Institute of Chemical Defense (USAMRICD)
  • 2001 – 2003 The CUNY Research Foundation; Immunology & Microbiology Department CCNY

Certifications: BLS, ACLS, PALS, Certified in the use of Suboxone for opioid dependency, Global Health Board Certified in Family Medicine/Osteopathic Manipulative Treatment

Professional Memberships: AAFP, ACOFP, AOA, MRC

Erin McKay

Medical Education:

  • 2005 – 2008 State University of New York at Stony Brook; Master of Science, Adult Nurse Practitioner
  • 2001 – 2003 State University of New York at Stony Brook; Bachelor of Science, Registered Nurse

Certifications: ACLS, PALS, and Basic Life Support, American Heart Association

Registered Nurse: NY, CA, NJ, & FL, Adult NP: NY

Professional Memberships: American Academy of Nurse Practitioners, NY State Nurse Association

Clinical Experience:

  • Stony Brook University Hospital Cardio-Thoracic Surgery Pre-Surgical testing, Cardio-Thoracic Surgery
  • Southampton Indian Reservation; Primary Care Medicine
  • North Suffolk Medical Care, P.C.; Internal Medicine
  • Stony Brook University Hospital; Invasive Cardiology

Linda A. Faszczewski

Medical Education:

  • 1998 State University of New York at Stony Brook;  Post Masters, Pediatric Nurse Practitioner
  • 1990 State University of New York at Stony Brook;  Adult Nurse Practitioner, Summa Cum Laude
  • 1990 State University of New York at Stony Brook;  Masters of Science in Nursing
  • 1988  State University of New York at Stony Brook; Bachelor of Science in Nursing, Summa Cum Laude

Clinical Experience:

  • 2000 –2012  Mel B. K MD  Adult and Chronic Care
  • 1998 – 2000 Mattituck Family Medicine
  • 1998 – 2012 Family Care Medical Center
  • 1987 – 1998 Lloyd Simon, MD  Adult and Geriatrics
  • 1979 – 1985 Eastern Long Island Hospital, Intensive Care Unit, Emergency Department; Registered Nurse.

Professional Memberships:

  • Sigma Theta Tau, International Honor Society of Nursing
  • Regents of the Nightingale Society
  • ANCC American Nursing Credentialing Center

Diane J. Schade

Certified Hospice and Palliative Nurse Practitioner

Medical Education:

  • 2015 George Washington University Palliative Care Nurse Practitioner Certificate
  • Graduate School of Nursing Palliative Care Certificate Program
  • 2013 The George Washington University, Graduate School of Nursing Adult Geriatric Primary Care Nurse Practitioner Program; Master of Science in Nursing
  • 2005 Long Island University, New York School of Nursing, Magna Cum Laude; Bachelor of Science in Nursing

Clinical Experience :

  • 2012 – 2016 Palliative Care Nurse Shene Nursing Service, Sag Harbor, New York
  • 2009 – 2011 Clinical Coordinator Palliative Care Service Southampton Hospital,
    Southampton, New York
  • 2008 – 2009 Staff Nurse, Southampton Hospital, Southampton, New York
  • 2006 – 2007 Community Hospice Nurse Hospice of New York, Long Island City, New York

Professional Organizations:

  • Sigma Theta Tau International Honor Society
  • Hospice and Palliative Nurses Association
  • Member, American Association of Colleges of Nurses
  • Member, Alpha Chi National College Honor Society

Julia Chachere


Certified Nurse - Midwife

Medical Education:

  • 2006 State University of New York at Stony Brook; Master of Science in Nurse Midwifery
  • 1992 Columbia University, Mailman School of Public Health; Master of Public Health
  • 1987 Long Island University; Bachelor of Science in Nursing

Licensure and Certification:

  • Midwife, NYS License
  • Nurse Practitioner in Women's Health License
  • Nurse – Midwife, Board Certified

Clinical Experience:

  • 2014 – 2017 Hudson River Healthcare, Southampton, NY
  • 2009 – 2014 Hamptons Gynecology and Obstetrics, Southampton, NY
  • 2008 – 2009 The Midwifery Practice at Stony Brook, Stony Brook, NY
  • 1989 – 1993 New York Hospital
  • 1987 – 1989 Beekman Downtown Hospital, New York, NY

Gerald T. Simons

Medical Education:

  • 2003 University of Nebraska, Physician Assistant Program; Master of Science, Physician Assistant
  • 1998 Palmetto–Richland Memorial Hospital; Certificate of Completion in Hyperbaric Medicine
  • 1995 Cornell University Medical College, Physician Assistant Program; Certificate of Completion
  • 1993 State University of New York at Stony Brook; Bachelor of Science in Respiratory Care


  • National Commission on Certification of PA’s; Board Certified Physician Assistant with recognition
  • National Commission on Certification of Physician Assistant Surgical Recognition Exam
  • National Board for Respiratory Care, Respiratory Therapy, Certified; Pulmonary Function, Certified

Professional Memberships: American Association of Surgical PA’s, New York State Society of Physician Assistants, American Academy of Physician Assistants

Matthew Grady

Certified Alcohol and Substance Abuse Counseling

Matt Grady is in our office Monday-Friday 9am-5pm. To schedule an appointment with Matt Grady, please call our office at 631-329-8430

Education: 1992 State University of New York at Stony Brook; Master of Social Work

Certifications: Credentialed Alcohol and Substance Abuse Counseling (CASAC)

Clinical Experience:

  • 2009 – Present Dr. Dempsey’s Office, developed a Medically Assisted Drug Treatment Program and provides individual counseling
  • 2000 East Hampton Day Care Center, developed Project MOST for the East Hampton School District
  • 1999 Domestic Abuse Services at the Justice Court in Southampton, NY
  • 1996 Seafield Treatment Center
  • 1992 – 2000 Executive Director of the East End AIDS Wellness Project, Counselor, Grant Writer for numerous East End not for profit services

Ann M. Silver

Registered Dietitian & Certified Diabetes Educator

To schedule an appointment with Ann Silver please call her office at (631)324-1953. Ann is in our office on Thursdays, but we do not schedule appointments for her.


  • 1984 New York University; Master of Science in Clinical Nutrition
  • 1978 State University of New York College at Buffalo; Coordinated Undergraduate Program


  • Registered Dietitian
  • Member of ADA
  • Nutrition Entrepreneurs DPG, DCE, SCAN
  • Weight Management
  • Dietitians in Integrative and Functional Medicine and Vegetarian Nutrition DPGs
  • Long Island Dietetic Association (LIDA)
  • Association’s Award for Excellence in Consultation and Business Practice in 2003
  • Certified Diabetes Counselor

Clinical Experience:

  • Mount Sinai Medical Center
  • North Shore University Medical Center
  • Private Practice specializing in Diabetes, Eating Disorders & Weight Management
  • Suffolk County Community College, Riverhead, NY; Adjunct Assistant Professor in the Diet Technician Program, supervises students’ clinical rotations
  • Co-author of Making Nutrition Your Business:Private Practice and Beyond