Alan P. Siegal, M.D.

Dr. Alan Siegal is a nationally renowned adult and geriatric psychiatrist who serves as an associate clinical professor at Yale University School of Medicine as well as an attending physician at Yale-New Haven Hospital. He is the founding director of the Yale Alzheimer’s Disease and Cognitive Disorders Research Unit and past President of the American Association for Geriatric Psychiatry.

Dr. Siegal completed his residency in psychiatry and a fellowship in geriatric psychiatry at the Yale School of Medicine. He is the Director of the Geriatric & Adult Psychiatry Clinical Care and Research Center, with an office located in Hamden Connecticut.

Dr. Siegal has authored and co-authored multiple books, book chapters, reviews, and original articles. His research activities and clinical experience has afforded him the opportunity to lecture around the world.

Meet The Team​​​​​​
  1. Lauren Mercer, M.D.
    Lauren Mercer, M.D.
    Board Certified Geriatric and Adult Psychiatrist
  2. Ann Roselle
    Ann Roselle
    Nurse Practitioner
  3. Ric Ressner, M.D.
    Ric Ressner, M.D.
    Clinical Director
  4. Diane Johnson
    Diane Johnson
    Nurse Practitioner
  1. Heidi Sward
    Heidi Sward
    Licensed Clinical Social Worker
  2. Stephanie Jacobson
    Stephanie Jacobson
    Licensed Clinical Social Worker
  3. Andrea Greenberg
    Andrea Greenberg
    Licensed Clinical Social Worker
  4. Teresa DeNicholas
    Teresa DeNicholas
    Licensed Clinical Social Worker
  1. Andrea DeClement
    Andrea DeClement
    Research Director
Elizabeth Koris: Office Manager

Gina Burroughs, Medical Records Clerk

Keilah Boria, Billing & Facility Manager

Roseann Franco, Receptionist/File Clerk

Kelli Cini: Data Entry Clerk

In memory of Jeanne Jackson-Siegal M.D.
(October 28, 1956 - January 02, 2016) 

Partner, Director of Educational Development, and Director of Facility Care for
Geriatric & Adult Psychiatry, LLC

March 2000 - Jan 2016
Assistant Clinical Professor Yale University Medical School
2000 - 2012
Yale Clinical faculty on Consult Psychiatry Service
2000 - 2012
Medical Director of Alzheimer’s Resource Center of Connecticut
1999 - 2012
American Association of Geriatric Psychiatry (AAGP) Speaker
National & International for multiple Pharmaceutical Companies
1995 - 2012
Clinician of the Year 2004
American Association of Geriatric Psychiatry presented for: “profound commitment to the field of clinical geriatric psychiatry, persistent efforts to advance standards of care for all elderly people, and for enthusiastically encouraging fellow practitioners to appreciate the need to provide compassion, commitment and education for the benefit of all patients”
Jeanne Jackson-Siegal, M.D.