We love Dr. Mallenger - my whole family sees her, although we initially visited her because she is excellent with pediatric patients. My daughters have been seeing her since 2009 and they love her, she's very throrough, but fun and high energy. She explains things and asks questions directly to them in ways that they can understand. There's rarely too much of a wait to see her, although she doesn't work every Saturday, she does indeed do Saturday appointments which is great. Dr. Mallenger's office assistants are also wonderful, always friendly and willing to help when I need extra copies of receipts, documentation (for FSA), etc.
There are other docs in the practice, but we've only seen Dr. Mallenger so I can't attest to their care.