Honestly, your doctor would have no more clue about condom size than a pharmacist. About the only thing that a physician learns about condoms, unless a urologist or other specialist doing research about them, is that they exist and how to use them properly. The best source of information is the internet condom sites like Condomania. Medical and pharmacy school lectures on the subject are limited.
The female pharmacist would most likely take this kind of question as a crude joke and either kick you out of the store or refuse to help you.
The female pharmacist would most likely take this kind of question as a crude joke and either kick you out of the store or refuse to help you.