Dr. Mark Hafner Masteller, DO

I have been a patient with St. Vincent's provider for many years. As I am getting older health issues have risen over the last several years. On each occasion of being treated by my pcp, he was never able to diagnose my issues of bad gall bladder & food allergies. What makes it worst is the a former boss saw me suffering and suggested I had gall bladder issues and a friend told me to be allergy tested. I made several office visits prior to being diagnosed with NO success.

Office staff sometimes inefficient in returning calls on basic requests. Doctor and nurse have at times been rude.

my son was born 1985 dr mark was there as an intern loved him then and now

Awesome Physician. Great care and concern for the patient.

Although Dr .Tronnetti spent 5 hours just on my case with this guy he fired me as a patient before Dr.T even got to unpack her suitcades in Florida. The "Patient advocate" was useless and corrupt as noted by other reviewers. The Doctors who have treated me since being fired by mark all consider it a privledge to give me excellent care due to the fact i have very rare genetic conditions that are not previously ever effected an American. I refuse to refer to him as a doctor he is woefully unprepared for the title but you can trace his backround and find he was a child of privledge ( his mother died young but his father was an excellent Doctor of some prominence) mark interpersnally and bedside manner would more suit a "prison doctor" doing lethal injections. I am a proud ex-patient who will never forget his lack of care or his office staff head Laury Dart who had an even worse case of personality disorder than mark. St.V's has moved him around several of there offices( as he continues… to make ex-patients everwhere he practices).

Awesome Doctor, He is extremely nice and cares for his patients. Is very prompt with wait time and appts. He has always been right when it comes to knowing what is wrong, feel very confident and comfortable with is recommendations and treatments.

The staff is beyond rude if sick can never get in.Put on hold every time you call & made to feel like your wasting there time. Dr only spends 10min with you and he's out the door. I was smart to find a new doctor who is amazing.

Very rude employees at desk. They have a very "could care less" attitude. Also when calling for an appointment they put you on hold while they "exchange names for Christmas gifts" as witnessed while waiting for an appointment.

Receptionist very snoody and hard to communicate with, very uncaring. It is because I like Dr. Masteller so much that I put up with the unkind frontdesk staff. They are the worse I haveever dealt with in all my years of visitingdoctor offices.

Dr Masteller is once again At what was formerly known as McClelland Family Practice once Lead by Dr.Pamela Tronetti a Doctor of excellence and little compromise to the Hippocratic oath who thought and was assured her many valued patients would be cared for by Dr.Masteller in the same way she did , she got sold a bag of goods many of us got abandoned or fired or told we did not need medication or slandered and libeled us with untrue claima we were addicts in our medical records, this is not a quality Doctor and St. Vincent corrupt patient advocate department who let him get away with this should be voted with your dollar, also USE a different hospital where the advocate department will actually advocate for you,UPMC/ Hamot or Millcreek are not far away and Ethical Doctors that listen and care and will give top quality care are available you do not have to settle for Dr.Masteller and his rude staff. And also Diabetes NCQA under awards and distinctions and such is shuffling some papers… hanging some posters reading numbers from some charts and paying a fee for the artwork to hang on the wall it means Zip Zero Nada Nothing anybody reading this could do it and get the same thing if you wanted to decorate your home in taking care of your diabetes 2010 medical office posters. You would not take Your BMW to a mechanic who works on YUGO's so why trust your health and life to the YUGO mechanic of Doctors.