Heather,
I live in Nottingham, PA - just south of Oxford and right over the Maryland border. I first started seeing an onc at the Helen F. Graaham Cancer Center in Neward, DE because when everything happened I was told to go to the nearest emergency room and they set up an appointment for me from there. I have not been happy with him, or people in his office for several reasons. I now have an appointment with an onc who works on clinical trials for CML out of Johns Hopkins in Baltimore. I haven't seen him yet, but so far he has returned an e-mail within a couple days and it showed he was very concerned about his patients - and he hasn't even seen me yet. I know it may be a ways to go, but someone once said to me 'why aren't you going to Johns Hopkins, one of the most well-known hospitals in the country for cancer when you are that close?' It made sense to me, but I don't know how "Central" in PA you are, and it might not work for you. Just throwing what I've been going thru out there.
Good luck with your search.