I don't know whether New York has any laws regarding replacement of stolen prescription drugs. I'm assuming you're talking about some type of opioid medication. Usually that kind of thing is decided by the prescribing doctor.
Did you sign a treatment agreement or pain contract with your doctor? If so, how lost or stolen medications are handled should be covered in the agreement. Some doctors refuse to replace opioid prescriptions for any reason. Others may do so once if you have a police report showing the drugs were stolen. Unfortunately, I have heard of patients being dismissed by their doctor when they asked for a replacement of stolen meds. It's not fair, but it happens.
At the very least, I would get a police report. Without that there is little hope of getting your meds replaced. And for future reference, be sure to keep your pain medication locked up and don't let anyone know where you keep it. Good luck to you!