Dr Zbar's office is easily reached by train from New York City.

Take the NJ Transit Montclair-Boonton line from Penn Station to Bay Street. 

Get off at the Bay Street station. Walk towards the train engine, where the train crosses the local street. This is Glen Ridge Avenue. Turn right and take the first left onto Bay Street. Walk two blocks uphill. You will see the office on the right and Mountainside Hospital straight ahead.