Not surprising- doing so would violate various privacy laws and ethical rules.
No doctor, nurse, or medical professional, working or retired, has come forward to say I delivered Barack Hussein Obama, and the delivery was in Hawaii
Even assuming anybody involved in the delivery is still alive and remembers the delivery 47 years later, they would still be ethically and legally barred from discussing this.
Obama is 47...lets assume the doctor was 28 (young). He would be 73. Also, how would they remember anyway...Do you think they said ah...someday he will be president, we must make a note of this birth...come on. How many babies do you think doctors and nurses deliver during their career? Even the Berg lawsuit concedes he was born in Hawaii. If he was born in Hawaii, he can be president. The rest of this stuff is silly. Do you guys realize that Bobby Jindals parents were from a foreign country. You wan him excluded from running for president?
Historically, when someone from a town or city has been elected president, plaques have been posted, buildings declared historical monuments, and locals have come forward with stories of the family. You believe a hospital or a nurse, who would now be retired would not be proud to claim him, as well as various others who would have known about the birth?
Goes against human nature and our own experience.