MTM is mainly over the phone. You can schedule appointments to have the patient come in to talk about your med but usually that would have to be your store customer and you can do it more easily if they are coming in for a refill. You also can do cases outside your store or patients that go to another pharmacy and catch them but that would be over the phone usually. I mean seriously, what benefit will a patient getting driving to you just to talk about your med unless there is something seriously missing or intervention needed?
New pharmacists can do MTM, no certification or additional hospital/clinical experience needed where I work. Actually it's the new pharmacist that probably does them more usually, older pharmacists aren't clinical enough nor see any benefit to them, they just want to count. But it isn't really useful most of the times but it can help some. Some people just say they take this color/shape pill for this, the other for that. Educating them sometimes really helps them and become more aware of what they are taking from my limited experience.
As another poster mentioned, it's time consuming, for some full MTM cases you probably need to do a full case workup and others are just asking them why they haven't picked up. For chain retail like CVS/Wags/Rite-Aid, it's not worth the time and effort since their volume is so high. For an independent it's absolutely perfect as it gives an opportunity to build a better relationship with your ever shrinking customer base and the reimbursement is actually not quite that bad. Actually if I was efficient enough I'd do full MTM's all day and just take the reimbursement than just work retail.