Turn up your speakers: RUN, don't walk to a new doctor, one who WILL listen to you. A wise doctor recognizes that a patient knows herself better than anyone else. And remember, doctors no longer cure causes (many of them don't even consider it)... they just address symptoms, and with ever-more expensive and dangerous drugs.
This doctor needs to air his agenda on his own time! I wonder where his Big Pharma-paid vacations have been to lately?