<<Disclaimer: Verify this information before applying it to your situation.>> I didn't receive any information about primary care physicians but did receive some information about pediatric and adult GI. There is also good information in the archives listing GIs in addition to those in this summary. What follow is a list of GIs that list readers sent to me. Hope it is useful now or in the future. Pediatric GIs Dr. Gary Russell at Mass General hospital Dr. Jeffrey Biller Pediatric GI at Floating Hospital for Children at Tufts- New England Medical Center in Boston (We found him extremely qualified as a physician but incredibly insensitive as a person") Dr. Harlan Winter at MGH and Newton Wellesley Hospital ("His approach to the gf diet is that we should be very strict but he is a big proponent of trying to make sure that kids have normal lives and it has been the right approach for us.") Dr. Aubrey Katz ((781) 466-8988 is his Waltham office)Floating Hospital for Children at Tufts-New England Medical Center in Boston ("We feel comfortable with Dr. Katz b/c he listens to our concerns and always follows up on them.")(I cannot say enough great and positive things about our experience at Floating (with the exception of Dr. Biller's attitude three years ago) including the kind and caring staff in the AMB SURG Department! Adult GI Dr. Nezam Afdhal at Beth Israel Deaconess in Boston ("He is very personable and caring") Hope this helps! * All posts for product information must include the applicable country *