service1010,
I was in a consultation with Dr. Yu, but I wasn't the patient. He was very interactive and I appreciated his knowledge. This maybe the best ever review of a doctor and maybe the only review of Dr Yu. https://www.healthgrades.com/physician/dr-nathan-yu-xymqb3t I try to find out where they are most experienced https://health.usnews.com/doctors/nathan-yu-1415917 And I like to look at their publications. https://www.mayoclinic.org/biographies/yu-nathan-y-m-d/bio-20519750
I think you'll fare quite well with this doctor.