Dr. Markham Nightengale, MD

Dr. Nightengale is absolutely one of God's greatest gifts to us all! Everything about him is off the scale, first class, top notch! Appreciate, respect and admire him endlessly! I tell EVERYONE about God's blessing of Dr. Nightengale!

Dr. Nightingale is very personable and highly knowledgeable in his field. His office is extremely well organized. You could not ask fir a better experience.

Dr Nightengale ordered lab extensive lab work & will follow up with results soon.

Have had Doctor Nightengale for a very long time and after my last doctor he is a gem.

Came off as fake. Tried to end appointment without even examining me first. Had to call in nurse to have him come back in and he barely examined me.

I was surprised at all of the negative comments that were posted. I have been a patient for over ten years and have had three different procedures done with good results. He was very informative and he is a wonderful doctor.

I highly recommend Dr. Nightengale

I am dumbfounded by how much time and money I wasted seeing him and how he didn't figure out a single thing after numerous rounds of testing. 2 of the test he ordered had nothing to do with my symptoms. He set up a CT scan for my stomach when it was supposed to be my colon (the doctor giving the test noticed that right away), and I don't even have stomach issues. Lactose test? I've been living off milk and cheese since I got sick because meat and vegetables go right through me. Dairy products actually help relieve some of my symptoms but he insisted I take the test and I told him no every time and then he went ahead and scheduled the test without my permission. I fired him by letting the office know I wasn't happy with him at all and I'd be going to another specialist and his office continued to schedule me for test and office visits for almost 3 months after that conversation. I had to threaten legal action against Tulsa Endoscopy Center before they stopped contacting me. In short,… my experience with him was like a wild goose chase and a complete and total waste of time and money.

I thought I was sick till he started working on me. I got sicker after seeing him.

The doctor seems very knowledgable but staff is kind of rude. I was a little upset about not understanding a bill due to there are 2 different places that bill you and the billing lady started yelling at me. She said this is obvious because it is the same with all medical procedures. I told her I have had very few medical procedures and this is why. Dr. N could have told me more info about my problem but didn't unless I asked the specific questions. I didn't get the brochure explaining the procedure till after I had had 1 of 3. During the 2nd procedure he explained more than he did during the 1st which should have been the other way around. I was in quite a bit of pain after the 2nd one but no one asked before I left. Both times when staff called me the day after the procedure they did not ask how I was doing/feeling but only wanted to schedule the next procedure. Pretty rude, they could at least pretend to care. Also did not tell me how much my insurance was/wasn't going to… pay until I was ready to go in for the 1st procedure. Luckily I had my husband there with his credit card! All this being said I would recommend him. He seems to know what he's doing and his nurses are nice. I guess it is just usual in the medical profession for the doctor to be very hurried and the staff to be pretty rude. Also when I asked for a morning appt they said he didn't do this procedure in the mornings but when it came to the day of the procedure they asked me to come in earlier due to cancellations. They required me to call back, even though all I could say was I had a sub lined up for the afternoon and couldn't change it. I wish doctors offices would consider their patients as customers and at least pretend to put them first.