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  • Medical and Dental Staff Appointments North Region December 2025

Medical and Dental Staff Appointments North Region December 2025

Published:
December 26, 2025

What You Need To Know

Hackensack University Medical Center

MEDICAL STAFF APPLICATIONS

Andrew Trontis, MD 
Provisional Attending, Orthopaedic Surgery 

Kumar Sinha, MD 
Provisional Attending, Orthopaedic Surgery/ Spine Surgery 

Sean Hickey, MD 
Provisional Attending, Emergency Medicine & Internal Medicine/Critical Care Medicine 

Vache Naljian, MD 
Provisional Attending, Anesthesiology 

Mohammed Uddin, MD 
Provisional Attending, Neurology/Neuro-Ophthalmology 

Donna Eckstein, MD 
Provisional Attending, Radiology/Breast Imaging 

Rubin Simon, MD 
Provisional Attending, Internal Medicine/General Internal Medicine 

 

ALLIED HEALTH PROFESSIONALS APPLICATIONS

Brian Ng, PA 
Neurosurgery 

Kathryn Frattarola, APN 
Internal Medicine/Hematology Oncology & Obstetrics & Gynecology 

Helen Nunez, APN 
Internal Medicine/Hematology Oncology 

Andrea Rein, APN 
Internal Medicine/ Geriatrics 

Alicia Bacchus, APN 
Neurology 

Maureen Sessa, PsyD 
Psychiatry 

 

 

Palisades Medical Center

MEDICAL STAFF APPLICATIONS

Melissa Bilek, MD 
Active Staff- Pathology 

Donna Eckstein, MD 
Active Staff- Radiology/Breast Imaging 

Vaishali Purohit, MD 
Active Staff- Surgery/Breast Surgery 

Joyce Tsai, MD 
Active Staff- Medicine/Neurology 

Marie-Therese Valovska, MD 
Active Staff- Surgery/Urology 

 

 

 

 
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