Activities Staff

Administrative Staff

Finance

Human Resources

Information Technology (IT)

Development

Dietary

Communications

Admissions Staff

Clinical Social Workers

Erikson Institute Distinguished Faculty

Erikson Institute Staff

Faculty

Leadership

Nursing Staff

Online Intensive Outpatient Program

Therapeutic Community Staff

Therapy Staff

Fellows

Psychology

Undergraduate degree from Brown University

MD from Albert Einstein College of Medicine

Medical internship at St. Vincent’s Hospital

Psychiatric residency at New York Hospital’s Payne Whitney Clinic

Fellowship in psychoanalytic studies at the Austen Riggs Center

Nicholas A. Holliday, MD, is a staff psychiatrist at Riggs.

Dr, Holliday fulfilled a four-year service commitment with the Army as a general medical officer, which included tours in Germany and Brooklyn, and deployment to Somalia for Operation Restore Hope.

Nicholas A. Holliday, MD

Staff Psychiatrist

Anna Horton is a mental health specialist at the Austen Riggs Center.

Anna Horton

Mental Health Specialist

Peter Hummel, MA, is the Therapeutic Community Center group and activities coordinator and a senior program manager at the Austen Riggs Center.

Peter Hummel, MA

Therapeutic Community Center Group and Activities Coordinator/Senior Program Manager

Yelena Ivlieva, MA, is a mental health specialist at the Austen Riggs Center.

Yelena Ivlieva is a mental health specialist at the Austen Riggs Center.

Yelena Ivlieva

Margaret Jackson, LICSW, is a clinical social worker at the Austen Riggs Center.

Clinical Social Worker Margaret Jackson, LICSW

Margaret Jackson, LICSW

Clinical Social Worker

Thomas Jacques, CARN, is a staff nurse at the Austen Riggs Center.

Thomas Jacques, CARN

Staff Nurse

BS in Cellular-Molecular Biology from the University of Puerto Rico, Rio Piedras Campus

MD from the University of Puerto Rico, Medical Sciences Campus

General Psychiatry Residency at the University of Puerto Rico, Medical Sciences Campus

Gabriel Jiménez Ocasio, MD, is a Fellow in psychoanalytic studies at the Austen Riggs Center.

Professional Affiliations/Organizational Memberships

American Academy of Psychodynamic Psychiatry and Psychoanalysis

2-year Certification in Psychodynamic Psychotherapy from the Florida Psychoanalytic Center

Gabriel Jimenez Ocasio, MD

Fellow in Psychiatry

Kelsey Jordan, RN, is a staff nurse at the Austen Riggs Center. Her prior experience includes medical-surgical and critical care nursing at Berkshire Medical Center. She has worked with patients and loved ones struggling with alcohol or substance use disorders, cognitive changes, and depressive or anxiety disorders. Her personal experience motivates her to learn and engage in these areas and more.

Mental Health First Aid Certification, National Council for Mental Wellbeing

David Jordan is the director of dietary at the Austen Riggs Center. He has nearly 30 years of experience working in the hospitality industry, guest services, and guest relations.

Outside of Riggs, David is a member of the Berkshire County Football Officials Association and has served as a celebrity chef for“Feed Our Neighbors” Fundraisers.

Board of Advisors member, Taconic High School Culinary Arts Program

National Restaurant Association (NRA) ServSafe and Allergen Awareness

Dave Jordan

Director of Dietary/Executive Chef

BA in computer science (with a concentration in software development and a minor in cybersecurity) from Marist College

Nick Judson is the Security and Support Analyst at the Austen Riggs Center.

Prior to working at Riggs, Judson completed an internship with the Walt Disney Company where he built upon his customer service skills while working as a Disney College Program cast member at Disney’s Hollywood Studios. Upon returning from this internship, Judson worked on contract in the Help Desk for the Schenectady City School District. Here, he kept a knowledge base up to date and answered help desk inquiries for a district of 17 schools providing onsite support.

Outside of Riggs, Judson enjoys art, photography (especially film), and hiking, often with his two-year-old Husky-mix named Gus.

Nick Judson

 Security and Support Analyst

Cornelia Kalisher is a staff member in the Therapeutic Community Program at the Austen Riggs Center.

Cornelia Kalisher, LSW

Therapeutic Community Staff Member

Barbara Keegan is the Medical Office Building receptionist. 

Mrs. Keegan has extensive administrative and human resources experience, most recently at ServiceNet, a human services agency in Northampton, MA.

Barbara Keegan is the Medical Office Building receptionist at the Austen Riggs Center.

Barbara Keegan

Medical Office Building Receptionist

Meet the Austen Riggs staff of therapists, nurses, administrators, and other healthcare professionals who work as a team on behalf of our patients. 

Staff Directory of Therapists and Teams | Austen Riggs

For more information on our residential treatment programs, or answers to any questions, please feel free to contact us. 

Meet Our Team

Nicholas A. Holliday, MD

Anna Horton

Peter Hummel, MA

Yelena Ivlieva, MA

Margaret Jackson, LICSW

Thomas Jacques, CARN

Gabriel Jiménez Ocasio, MD

Kelsey Jordan, RN

David Jordan

Nick Judson

Cornelia Kalischer, LSW

Barbara Keegan

Contact Us for More

For more information on our residential treatment programs, or answers to any questions, please feel free to contact us.

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