Viability of repairing a motorcycle tire is a very debatable issue and varies not only from shop to shop , but from tire manufacturer to tire manufacturer. Whether a puncture can be repaired or not depends on nature of the puncture, location and tire wear. If the tire is repairable, the repair should be done from the inside with a mushroom patch (kind of a combination of plug and patch). The speed rating of the tire is also diminished. If you are paying a shop to do the repair at NYC labor rates and you have mileage on the tire you may find the repair is not worth it.
If the tire is repairable I am fairly sure these guys will do it.
http://cycletherapynyc.comYou can save some money by bringing them the wheel without the bike.