I have gone to Dr. Feldman the past two years for annual physicals. No real issues, but seems like a good guy. Has some sports medicine background that I liked since I try to keep up and play in my ripe old age. His office is just east of Blalock on the south side of the Katy Freeway.
I really like Daniel D'Souza on Dairy Ashford. He'll work you in if you need to see a doctor right away.
Also, several years back my company changed medical insurance and the new insurance listed him as a provider even though he hadn't been a provider for them for over a year. We found this out when I showed up for the appointment and he personally came out and told the business office to only charge me $60 for his services and to contact the insurance company and get his name off their list.
Just a little north is Huy A. Nguyen at North Cypress. Just outside 610 in the Post-Oak area is John Matocha. In the Energy Corridor area, I would probably use Karen Thampoe, MD. The Village Family Practice and Memorial Clinic Associates are large practices.
I would not recommend Thampoe. Memorial Clinical Associates is full of good doctors and NPs, and is a large practice. Ami Foster is good in Katy, very busy practice. Henry Jackson is a new doctor with Village Family Practice and hes a good guy too, probably easy to get into be seen since he is new.