hair specialist doctor in florida

[chiko]

hello,im 25 years old,i live in sarasota fl, and my hair started thinning 2 years ago.i dont have any bold spots,is just thinning everywhere,i still have a full head of hair.i went to see my dermatologist 4 months ago and he told me to start using rogaine so i did but the results are not that great,actually my hair is getting worst,i have an appointment with dr.joe greco next week,does anybody knows if he is a good hair specialist doctor?
dr steven gupta is another hair transplant doctor,he is in the list of recommended hair transplants doctors in ISHRS.does anybody know anything about dr gupta?
any other hair specialist i can go and have a consultation in florida?