If by primary care physician, you mean a GI doctor, I finally found a great one for my daughter, after calling every hospital and inquiring their experience with j-pouch patients (every one said "limited to none".)
Dr. Jason Schairer is a brilliant GI-works out of Henry Ford hospitals. We see him at 12mile/Haggerty offices and at Henry Ford Hospital, Bloomfield Hills.
He has trained with the brilliant Dr. Bo Shen from Cleveland Clinic, and it was Dr. Shen who advised us to connect with him so that my daughter had someone near by for emergencies and day to day care. I'm sure you can also ask him for referrals if you also need a family practitioner. Although, we also see Dr. Keith Tobin and Dr. Michael Burry, as they have seen my daughter her entire life. They are wonderfully compassionate also.