Okay, I just took about 2 minutes to do some Google research for you. You have several choice options in the Atlanta, Georgia area. I hope this info will be reassuring!
Emory Clinic at St. Joseph's - Urology is part of Emory Healthcare is ranked in the top 50 urology clinics in the USA. If I were you I would start there because you will have ready access through them to a multidisciplinary approach that stands a better chance of getting to root causes.
Start with a urologist within that healthcare system and from that urologist get a referral to an accredited endocrinologist also in the same system. Avoid "men's health clinic businesses" and other testosterone shops. If they offer penis enlargement among their services, best to avoid those types of businesses.
Write all of your questions about your options down on paper and bring them with you to your appointment. Print this advice from me out and ask your doctor if I'm just crazy.
Atlanta Urology is another great option in the Atlanta area especially if second opinions become necessary. You can read all about these institutions online.
Of course feel free to start where ever you want, but I would go with Emory Healthcare as a very solid starting point based on what I'm reading.