My cat was diagnosed with diabetes recently and she had to be put on insulin. Well, with insulin you have to take your pet back to the clinic to have her blood glucose checked once a week until the glucose level is back to normal again, which was fine. But every time we walked in they would charge us for an office visit as well as medical waste disposal on top of the fee for checking her blood sugar whether we saw the dr. or not!!! This was outrageous!!!!!!! When I finally asked the office manager about the office visit charge every time she got really irritated and was more than happy to transfer my cats records to another office. After more than 11 years of being their client with my 2 cats, they were happy to get rid of me for asking why I was being charged an office visit every time I walked in to their clinic!!! But in the end, it all worked out for the best. I found Rocky Gorge animal hospital in Laurel, MD. The entire staff are so nice and friendly and the owner truly cares about the animals and not just their owners wallet. They don't charge you office visit for every time you walk in to their clinic and they even offered to dispose of the syringes that I'm using for my cat's injections all free of charge. Take my advice and look for other veterinary clinics in your area. I'm sure you can find one better than cat & dog hospital of columbia!