Hassman Research Institute, LLC  175 Cross Keys Road, Berlin, NJ 08009 MAP

Located on a large campus in Berlin, New Jersey, just twenty minutes from Philadelphia, Hassman Research Institute is a leading clinical research organization conducting studies in a wide variety of therapeutic areas. HRI’s highly trained and experienced staff, including four board certified clinical investigators, are dedicated to maintaining the highest standard of quality in the trials they conduct.

On the HRI campus there are fourteen private practices with physicians that serve as sub-investigators. Their specialties include psychiatry, addictions, abuse liability, neurology, cardiology, dermatology, ophthalmology, endocrinology, ENT, gastroenterology, orthopedics, pain management, and OBGYN. HRI has a database of over 70,000 subjects and access to patients via five owned multi-specialty affiliated practices.

Download the HRI fact sheet.

Download a presentation about HRI’s general capabilities.

Campus Map

  1. CNS and Neuroscience Unit
  2. Early Phase/Inpatient/HAL Unit
  3. General Medicine, Pain & Addiction Unit

Human Abuse Liability (HAL) Unit
HRI’s newly-expanded, 30-bed inpatient facility offers safety resources required for the unique needs of abuse liability studies. The Human Abuse Liability (HAL) unit includes private or semi-private rooms, separate nursing station, dedicated rating rooms, and neurocognitive exam room. It also has lounge areas with computers, a game room, eating areas, and secured outdoor areas. On the HRI campus centrally located in a large population center with 12 colleges nearby, the HAL unit has access to a wide variety of patients, including a large database of recreational drug users (alcohol, benzos, cocaine, heroin, opioids, marijuana, methamphetamine, nicotine, PCP).

Download the HAL Unit fact sheet.


Howard Hassman, DO, CSO, Board Certified in Family Practice. PI on phase I-IV inpatient and outpatient psychiatry and addiction trials

Michael Hassman, DO, Board Certified in Family Practice. PI on phase I-IV inpatient and outpatient pain and general medical trials

Roberta Ball, DO, Board Certified in Psychiatry. PI on phase I-IV inpatient and outpatient psychiatry, pain, and addiction trials

Elissa Hassman, DO, Board Certified Ophthalmologist with 20+ years of treatment experience