My daughter was seeing Thondup for the first 3 months and YES, he is very popular and very impatient. When my daughter had an adverse reaction to a vaccine, he did not approach the problem in a well-thought out manner. He asked for the stool specimen too early, ruled out that the vaccine was a potential cause too quickly, and provided false information. He is recommended by other doctors, is very pro-breastfeeding, and quite pleasant during his office visits. But his visits are rushed, he seems annoyed on emergency calls, and does not give adequate attention to each of his patients. There are better doctors out there.