Most pharmacies in the US will count out each pill/mL. Most insurers will not pay for more than three months at a time and so the pharmacy won't give you more than 90 days * your daily dosage.
Picking up common prescription medication consists of me walking into a pharmacy - any pharmacy! - with my prescription, handing it to them, and telling them "one of this please". They will then immediately retrieve the pack of that medicine, ask me some questions to check for allergies etc. and hand it to me. I don't have to have the prescription sent to a specific pharmacy then wait for them to have the bottle ready and verified by a pharmacist.