His areas of expertise include the following: prostate problems, warts, and thyroid problems. On average, patients gave Dr. Purewal a rating of 4.5 stars out of 5. He is in-network for Blue Cross Blue Shield Bronze, Blue Cross Blue Shield Gold, and United Healthcare Choice, as well as other insurance carriers. He studied medicine at Government Medical College, Amritsar. Dr. Purewal is affiliated with Houston Methodist. He has an open panel.