We have a medical cert and ID from CA. Next week we will be visiting and would like to know if any dispensary will honor our I'd since we dont want to travel with herb?

Only 14 states offer some sort of reciprocity. https://www.leafly.com/news/cannabis-101/which-us-states-accept-out-of-state-medical-marijuana-authorizati

I don't think NY will honor outside MM cards.

Prob not but im guessing. I have an NY card and cert and NJ turned me down. Best bet is to call the dispensary