Professional Summary

Education & Certifications
  • Residency: UCSF General Surgery Residency (1996) CA
  • Internship: UCSF General Surgery Residency (1992) CA
  • Board Certification: American Board of Surgery, General Surgery (1997)
  • Board Certification: American Board of Colon and Rectal Surgery, Colon and Rectal Surgery (1999)
  • Fellowship: University of Minnesota (1998) MN
  • Fellowship, University of Minnesota, Colon and Rectal Surgery (1998)
  • Residency, UCSF, General Surgery (1996)
  • Medical Education: University of Wisconsin Medical School (1991) WI
  • M.D., University of Wisconsin, Medicine (1991)
  • B.A., University of Colorado, Molecular Biology (1987)

Honors & Awards
  • Alpha Omega Alpha, University of Wisconsin (1991)
  • Phi Beta Kappa, University of Colorado (1987)
  • Resident Research Award, University of Minnesota (1998)

Administrative Appointments
  • Clinical Director Medical Informatics, Stanford University Hospital and Clinics (2006 - Present)


Clinical Trials

Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.

Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.

Specializing In

Practice Locations

Gastrointestinal (GI) Cancer Program in Palo Alto Palo Alto, CA
Palo Alto, CA

875 Blake Wilbur Drive

Palo Alto , CA 94304

(650) 498-6000

Make An Appointment More Clinic Information » Getting Here »

Digestive Health Surgery at 875 Blake Wilbur Drive Palo Alto, CA
Palo Alto, CA

875 Blake Wilbur Drive

Palo Alto , CA 94304

(650) 498-6000

Make An Appointment More Clinic Information » Getting Here »

Patient Ratings

(95 Ratings)

Overall Rating

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Friendliness/courtesy of the care provider
Explanations the care provider gave you about your problem or condition
Concern the care provider showed for your questions or worries
Care provider's efforts to include you in decisions about your care
Care provider's efforts to include you in decisions about your treatment
Recommended to others
Likelihood of your recommending this care provider to others
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Wait time at clinic (from arriving to leaving)

How Our Ratings Work

The Patients Ratings and comments are gathered from our Patient Satisfaction Survey and displayed in their entirety.

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Patient Reviews

(196 reviews)

Dr. Andrew Shelton is an outstanding Doctor!!!
I feel like I am in good hands and he makes sure all my questions are answered. I appreciate that as most of us have so many questions about what is happening with our health and it can be quite scary.
Fantastic surgeon!!! Thank you!!
Dr Shelton has been Great from day one. Can say nothing but good about him.
Very professional. Looking forward to meeting him.
He's a great Dr. and I am confident he will take care of my needs.
Video visits with Dr. Shelton have always gone well. Dr. Shelton is congenial and my questions and concerns answered to my satisfaction.
My video visit went flawlessly with Dr. Sheldon and his staff
thank you for making time for me
A highly skilled surgeon that I have complete confidence in performing my surgery.
Very informative, left the visit with a good feeling of questions answered
Excellent doctor
Dr. Shelton was able to review my most recent CT scan with me and to illustrate why I am having frequent small bowel blockages due to thickening of the small bowel wall. He also explained that lettuce is mainly water and has low fiber content so it's OK to eat it. He was supportive of having surgery if I continue to have frequent small bowel blockage but also warned that it would be major surgery.
Pleasant, informative and thorough
Very good Dr explained everything well
He is very experienced and highly professional doctor. I am very thankful for everything that doctor Shelton did for me.
Very thorough, explained situations well.
Everything was excellent. Thank you.
I am lucky to have had such an excellent and experienced surgeon on my case. Dr Shelton initially consulted and allowed me to try to manage my condition without surgery but when things quickly deteriorated with yet another infection, he got me in for surgery as soon as the infection subsided. Best outcome possible under the circumstances.
Smooth exam with detail explanation
Dr. Shelton was awesome, really put my mind at ease, excellent person to talk to, if I should need surgery down the road he would be the Dr. I would go to, he made me feel confident about the problem I have and would not have any concern at all about the outcome, Stanford Medicine and it`s Doctors are awesome and feel blessed I am able to go there.
Informative appointment
Easy to deal with. I only wish there were new advances to treat complications of low anterior resection syndrome.
Seems like a nice guy
Excellent Doctor Very informative and very knowledgeable. Very pleasant
Dr Shelton communicates very effectively. He is clear, to the point and concerned about my well-being. I highly recommend him.
We thank God you found cancer and we can fight it and beat it again.
Very nice Man and Doctor
Thank you doctor
He's great, Video Visit went well
Visit was started with Turn practitioner & then Dr Shelton joined. All went smoothly.
Dr. Shelton was kind and helpful. Explained the immediate situation and possible treatment after further chemo and possibly radiation.
Very nice Dr.
Dr. Shelton was great. Very knowledgeable and informative.
Am grateful to have had a consultation with Dr Shelton
Andrew Shelton is a phenomenal doctor and a lovely and empathic human being.
I am very grateful with Dr. Shelton,’s team. With their support, I feel I will be OK.
Very personable.
Everyone is so nice, patient, & compassionate. They answer your questions. I could go on & on about how wonderful everyone is.
I have confidence in Dr. Shelton and Stanford Medical Center because of their reputation.
Very professional and informative
He was great. Listened carefully and gave good advice.
Excellent surgeon
Dr. Andreew Shelton had a very good bedside manner and explained the colorectal surgery in a clear way and answered all my questions. He was also generous with his time.
Great Dr. Very professional and caring.
Straight to the point and explains what’s next
Stanford is. Amazing place. Excellent care
Excellent Doctor
Dr. Shelton, thank you for taking care of me.
Super doctor and nurse. Both are kind and knowledgeable.
It’s really simple to describe him most wonderful person on earth care about his patients very very experienced doctor his personality is something amazing he is truly a.great doctor I am so thrilled to have such a great doctor in my life
Very personable and addresses all of my problems with a plan of treatment
Yeah he is a wonderful doctor that I trust.
Good explainer, friendly, understanding and helped to simplify the decision.
Dr. Shelton was a big help for me during this whole process. He changed the course of my health in a positive way and I can't thank him enough.
Dr Shelton saved my husband’s life. He is a very smart, intelligent, caring doctor. He gets to the point quickly and explains things succinctly. Very grateful to the doctor who referred my husband to him. I will forever be in Dr Shelton’s debt.
Dr. Andrew Shelton saved my life, and I am deeply grateful to him for everything he has done for me and my family. He was always prompt in acting and quick in taking detailed decisions that proved to be the right ones, always keeping in mind the large picture of what’s good for his patient both immediately and on the long run. He is immensely knowlegeable, outstandingly professional yet hugely empathetic, relating to the patient’s emotions and state of mind. I am humbled by his professional excellence, and I feel priviledged and honored to have been his patient. A huge THANK YOU and my entire gratitude to Dr Shelton and his team for everything they have done for me!
Dr. Shelton is an excellent surgeon. I am so glad I was referred to him at Stanford. Thanks for everything!
Dr. Shelton was very nice and informative.
A superb surgeon with a wonderful bedside manner. Answers all questions completely. Thank you
He was able to explain the issues/risks and made me feel comfortable.
Excellent surgeon. Competent caring compassionate. I felt like I was in good hands under his care. His team made everything clear and understandable.
Excellent visit
Great doctor. Great support staff. Great experience.
He knew what he was talking about, answered all my questions and left me feeling that I was in good hands.
Excellent and beyond expectations!
Best colorectal surgeon in the SF area. Very caring and compassionate.
Dr Shelton is the most amazing doctor I have ever had. He is very professional always in time. He a amazing doctor. His care saved my life. I love him and recommend him to everyone I know.
He's great.
We feel very fortunate to be under the care of Dr. Shelton and his wonderful staff.
Dr. Shelton and Meg are the best!!!
Dr. Andrew Alan Shelton is the best. I am happy he is my Dr.
He seemed very concerned and nice. Very informative about all my questions and concerns.
Dr. Shelton did an excellent job on my surgery. I had the surgery on a Wednesday and by Sunday I was already feeling significantly better. I had been putting the surgery off for over a year because I was scared of the "what if's" but once I had the consult with Dr. Shelton and met with Meg and Sally, I felt confident to move forward. I'm grateful and very fortunate that he was willing to do the procedure. Thanks to him and the incredible staff at Stanford I do not have pain every day!
Great. I’m quite confident with Dr. Shelton
Dr Andrew is an excellent and staff, also.
Dr. Shelton and staff were excellent.
Excellent grade: communicates well, does not hurry patient's inquiries, thorough.
He is great!
My impression of him is that he is a kind and caring Dr. who is direct about what needs to be done with my medical care.
Dr Shelton is terrific about making sure he transmits information clearly and completely. Very friendly and able to put patience at ease.
Great bedside manner
I'm delighted that we probably have identified a less-invasive way to deal with my medical problem.
Dr. Shelton was professional. He answered my questions in a very direct and clear way.
Awesome team
Dr. Shelton and Meg are TOP NOTCH!
On my experience, Dr. Shelton is a excellence colon surgery doctor.
Andrew A. Shelton, M.D., and the chief resident were both very competent and confidence-inspiring for the surgery!!
Does a good job of making sure patient understands everything and answering questions.
Knowledgeable Courtesy Decision maker
He is a lifesaver. He does not waste any time and he explains everything clearly. I was misdiagnosed by another Dr. and he corrected their mistake. Thank you very much.
Unbelievable what this man and his team did for me
He is a straight talker and easy to understand. I like the style.
He is great in communication. He did do a super operation on me. I really like him because he knows how to treat patient.
Andrew cares about the patient. I trust him very much.
Dr Shelton cured me. He is the best.
Dr. Shelton and all his staff were/are awesome!
Dr. Shelton is wonderful for all of the above reasons.
Like always very attentive, with all your professionalism between everything and clear. Many thanks.
I am cancer patient. I was very happy after talking with Dr. Shelton.
Dr. Shelton is top notch. He is caring and straight forward. I have much respect for him. He answered all questions and imparts trust and confidence.
I spoke with a "resident" and he examined me. Then the doctor came in and spoke with me and examined me.
The care provider team is very nice and takes care of me very much. I really appreciate all of them.
Great understanding and action plan.
I would never go anywhere else for my needs. High five to all.
dr. Shelton is amazing - he listens, he looks at you - is not distracted. I never felt like he was in a hurry or that my issue was not important. he explained things to me through a conversation and when I asked a question, he was thoughtful in his response. I feel very comfortable with dr. Shelton and I know I am seeing the best dr. to deal with my GI issues.
Dr. Shelton is an amazing doctor.
Thanks for all the specialists!!! =)
You have no idea how excellent you people are!
Wonderful staff.
Everybody is very friendly. They took care of me very much.
All of the health care providers I met at my first visit were very professional, yet were aware that they are not only in the business of medicine, but also in the business of people
Everything good, no bad experience what so ever.
Felt a bit rushed, but covered what was needed to be done.
The meetings are very rushed.
The dr. was short in speaking spent less than 15 minutes.
There is no better doctor anywhere.
Thank you Dr. Shelton, he concerned about my questions and worries. Dr. Shelton saved my life. Thank you again.
Dr. Shelton & his whole team members are very caring, professionals and listened to what patients needs and give patient a lot of support. Thanks a lot to all.
I would recommend my surgeon to everyone. He's great.
Good experience!
I need a higher number to show my confidence in Dr. Shelton and my likelihood of recommending him.
First visit-so far so good.
DR. SHELTON is an outstanding Doctor.
Very good.
Love the staff at Stanford and have high respect for Dr Shelton.
My concerns regarding possible surgery were addressed as they knew I did not want surgery. They explained what laparoscopic or surgery would entail and the outcome. I am completely satisfied with the decision I made due to the explanation provided by the PA & Dr. Shelton.
Resident was excellent, she spent time needed & showed genuine compassion Dr. Shelton did not spend enough time. Was upsetting to ignore my handshake or eye contact. Heard he is smart but not kind. Will ask for his female doctors next time. Shelton
Thank you Dr. Shelton. He concern about me. He saved my life. He answered all my questions and worries. He is my health guardian angel.
Very through - clearly explained issues.
felt rushed with appointment.
Dr. Johnson and his staff are wonderful. I even received a call from Dr. Johnson on a Sunday as he had had another thought about my case. He is always a great listener.
Dr. Shelton's residents are also excellent and show the same attention and care that he does.
Very good.
I feel like Dr. Shelton cares about my medical condition and takes the time to answer questions, which has not been my experience at other hospitals.
This was a surgical consultation. I had already had such a consultation many years before, and this was very basic - they referred to it as the "spiel". While the doctor answered most of my questions, I felt that he seemed to be somewhat dismissive of the concerns that I raised. He seemed to be in a hurry to wrap up rather than address my concerns.
For the past 1 yr. I have tried to have my issue resolved locally in the Sacramento area without receiving satisfactory answers. Within 15 minutes Dr. Shelton answered and addressed all of my concerns. Thank you once again Dr. Shelton.
Saw Dr. Shelton, felt as if he had somewhere to be. Not wanting to expand on questions or give more information than bare minimum.
Did not realize that Stanford is so compartalized which adversely affected my surgical aftercare complaints.
Dr. Shelton's PA was friendly and welcoming. Dr. Shelton acted like he was in a rush the entire time and I got the feeling he was not happy I wasn't 100% set on surgery. Felt like he could've explained more. Unhappy overall.
I can't say enough good you all do. It is great to have such caring people.
Very good.
The PA only got 90 seconds with me before doctor walked in. Doctor seemed annoyed with me, and seemed hurried.
Explanations of procedure very clear.
Great job.
Highly professional in identifying my problem, surgery, and post surgery care
Other hospitals should follow how Stanford does things. They are very organized.
Dr. Shelton is the best!
He just seemed very "arrogant" and spoke down to you, as if to think you should understand without further explanation.
Very pleased with my provider. He makes me feel comfortable and at ease with my care and treatment. I'm extremely happy with my provide and the care I have received
I so appreciate the support & care.
Dr Shelton and his team were amazing
Loved Dr. Shelton & Dr. Rhoads, they were so patient & answered all my questions.
Doctor initially would not provide detailed information, had to repeatedly ask for more details. Ultimately not sure doctor understood my concerns.
and if I forget to ask something or I think of something else I can always communicate on "myhealth" online which I really appreciate
Very well informed, very confident in my doctors'.
Dr. Shelton is very confident & brings positivity to my treatment.
one of the best places to get modern health care even if you are poor.
Dr. Shelton conveys a very strong level of competence and confidence. I feel very comfortable interacting with him and have a lot of confidence in his choices of care for me.
Dr. Shelton is trustworthy and an excellent GI Dr. and surgeon. I trust him to do all my future surgeries.
I have complete confidence in Dr. Shelton. He is a true professional & very knowledgeable & friendly.
I was very impressed by the doctor, his nurse practitioner, and nurse. Very organized, knowledgeable, assuring, and personable. But I'd just as soon not see him again.
The consultation with Dr. Skimmer and Shelton gave me great confidence in their skills.
A neighbor of mine had surgery, a few months ago, here, she told me how well she was treated here, I can tell the short time - I was here that she was right.
Outstanding surgeon and office team.
from the time of scheduling thru to checkout all services have been of the highest quality.
Staff is excellent.
Excellent & knowledgeable dr., but always in a hurry.
Doctor obviously didn't read file or review recent MRI - no knowledge or appreciation of complexity of my issues. All business (without corresponding understanding) and no compassion. Dismissive.
My wife and I were extremely pleased with the professional expertise of Dr. Shelton. He explained the issues associated with my health problem in a manner which gave us confidence in moving forward. He answered our question clearly and precisely, conveying to us both surgical procedures to be followed as will as post operation processes. We were most impressed with the thoroughness of the information and the exams which were administered. If a 10 is a top score for Doctor Shelton during our consultation and exam --- double it to a 20.
I have 100% confidence in Dr. Shelton and his staff.
Dr. Shelton is optimistic and supportive. This latest surgery was particularly challenging for me, and I was immensely grateful for his and his team's oversight.
Very grateful to Elizabeth Smith for her kind and attentive care!
The PA was very good - listened and understood. The Dr. however had not studied the case, misunderstood the problem, was not empathetic - I would never go back.
Keep up the good work.
Everything outstanding.
Really liked the staff.
Outstanding experience. Dr. Shelton provided expert advice in a compassionate, competent, easily to understand manner.
Dr. Shelton is an excellent surgeon. He delegates a lot which makes more difficult because care is not as coordinated.
It is good to have a doctor who is very confident in what he does.
Provider seemed rushed and very business like. He did not order the test that were recommended by the referring provider and he did not exam me.
Consultation was short, abrupt, and dr. did not even look at stoma area! Was advised only to get stronger to endure medical procedure.
The nurse, resident doctor and doctor were wonderful.
Could not have asked for better care!!
The best experience were done to me on mention above. Excellent services.
Good exp.
Dr. Shelton has been an excellent care giver.
Way better "bedside manner" than UCSF!
I honestly can't say enough good things w/Dr. Shelton and his staff. A wonderful staff.

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Referring Physicians