Sang-ick Chang

Clinical Professor, Medicine - Primary Care and Population Health

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Additional Languages Spoken:
Korean , Spanish

Professional Summary

Education & Certifications
  • Residency: UCSF Family Medicine Residency (1990) CA
  • Medical Education: University of California at San Francisco School of Medicine (1987) CA
  • Board Certification: American Board of Family Medicine, Family Medicine (1991)
  • MPH, University of California, Berkeley, Public Health (2007)
  • BA, Harvard College, Psychology (1982)

Administrative Appointments
  • Associate Dean for Primary Care & Population Health, Stanford School of Medicine (2012 - Present)
  • Division Chief, Primary Care and Population Health, Department of Medicine (2016 - Present)


Practice Locations

Stanford Primary Care in Portola Valley Portola Valley, CA
Portola Valley, CA

3250 Alpine Road

Portola Valley , CA 94028

(650) 498-9000

Make An Appointment More Clinic Information » Getting Here »

LGBTQ+ Health Program Los Altos, CA
Los Altos, CA

960 N. San Antonio Road, Suite 101

Los Altos , CA 94022

(650) 724-8844

Make An Appointment More Clinic Information » Getting Here »

Patient Ratings

(152 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
Wait times
Wait time at clinic (from arriving to leaving)

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

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Patient Reviews

(138 reviews)

appointment managers need additional education
quick. efficient. thoughtful and thorough visit
Dr. Chang is great!
Dr Chang is a terrific health partner
Outstanding doctor!
Excellent and experienced physician
Dr. Chang is a caring, knowledgeable doctor. I am thankful to have him as my primary care doctor.
Good communicator and responsive to questions.
quick and efficient
Dr. Chang is a very caring and knowledgeable. He has my total trust in providing for my healthcare.
Clearly engaged professional
Great Doctor
Excellent competent care.
It was a last minute change from in-person visit to video visit. Dr. Chang was very accommodating for the visit, took enough time to address Blum concerns. Of course video visit lacks physical examination, but Dr. Chang’s kind demeanor touched all concerns that I had and made video visit pleasurable.
Sang-Ick Chang is an extraordinary physician. He is a role-model for all physicians in terms of his knowledge and bedside manner. He is very experienced, but not condescending in any way and one never feels rushed.
Dr Chang is exceptional; caring, knowledgeable, attentive and overall The Best! Thank You!
Dr. Chang is the best physician I've ever had. I'm very grateful to have him.
Dr. Sang-Ick Chang was very professional and thorough!
Dr Sang-ick Chang is the best primary care physician I've met. He's extremely knowledgeable and genuinely cares about his patients. And he seems to work exceptionally hard for their well-being.
I was extraordinarily pleased with everything about this visit.
I appreciate greatly the medical care given by Dr. Chang and staff.
All very good
Just so professional and thoughtful and convenient
thorough, conscientious doctor
Very efficient, thoughtful and knowledgeable
He is an excellent doctor.
Will do. Dr. Chang was very helpful.
Excellent in every respect!
Dr Chang has been my Primary Care Physician for a number of years and I am satisfied with and respect his concerns and decisions in my health care. I prefer in person appointment visits.
Outstanding communicator, educator, empathic physician
very thorough
Great experience
Dr Chang is the best
Dr Chang clearly understood my issue and provided options on how to move forward.
Appreciated warm welcome by receptionist and nurse and, of course, warmth of greeting by Dr Chang.
Always PROFESSIONAL advice and caring consult
Excellent advice
Always receive great care and recommendations
Both Jose (first contact caregiver) and Dr. Chang seem stellar.
professional and personable
Awesome and cheerful
Dr. Chang took the time to help me understand what are the major health issues I could face. He also helped coach me with lifestyle in a very honest, transparent, and vulnerable way. He is an excellent doctor and helped make my life better. Especially like the advice involving my children and how I need to play games with them each night. Great guy who’s helping me stay healthy.
The best physician who cares his patients sincerely
Excellent visit and followup by the Dr. and Staff.
He is a great pcp. He listened well and made me feel comfortable discussing something that was sensitive for me.
Dr. Chang is great!
Dr. Chang is a very caring doctor.
Dr. Chang is such a caring doctor.
It’s nice to be able to speak in my native languages
Dr. Chang is a credit to the Stanford Clinic. He is caring, attentive, and such a delight to be around.
Dr. Chang is my idea of the ideal doctor. I'm very grateful to have him.
Superb patient care!
He is a very Caring Doctor and I feel very confident in his care
He is fantastic!
He is the best primary care doctor I have ever had, Thanks to Dr. Chang!
Inciteful md
Dr. Chang is an excellent communicator and very thorough.
Quality care and on time
Dr. Chang is an excellent physician. knowledgeable, caring, and easy to talk to. Not pretentious. If he doesn't have an answer, he will honestly say so.
Dr Chang is a great doctor. I am very happy with his service and expertise. I feel well taken care of.
I want to refer more patients to Dr. Chang; but he is fully books with old patients; cannot take new patiemts unless some old ones leave.
Very competent with great depth of medical knowledge. Also provides the human-touch & care.
Dr. Sang-Ick Chang is excellent.
I had Dr. Chang as my primary care physician since 2012, he has been EXCELLENT!
Pleasure to meet Dr. Chang.
Dr. Chang is very good at listening to my concerns and discussing them.
I am very satisfied with my provider. He answered all my questions and seems knowledgeable and helpful.
Very good listener.
Dr. Chang is a wonderful physician - personable, engaging, clear about options for care, thorough, patient & a wonderful listener.
Dr. Chang is great and his advice, practice, & procedures are great.
One of the best care providers.
Great explanation! I truly walked out understanding what may be going on (pending test results).
Dr. Chang is a competent & understanding MD.
Have been coming to Dr. Chang for many years and would highly recommend him to all of my family/friends.
Most professional as well as caring and knowledgable.
Dr. Chang was very friendly and kindly.
We had a long discussion, senior care, good advice about surgeries for knee & back. Listened attentively, easy person to talk with.
He made sure all my questions were addressed.
Yes Dr. Sang-ick Chang is a very good dr. my confidence in this care, I'll recommending his care to others.
Dr. Chang informed me I had a cyst on my finger - Not trigger finger as another doctor told me. I was able to fix the problem and am now pain free!
Excellent style.
Dr. Chang is super great!
Every visit with Dr. Chang is a joy. I hate for them to end.
I am always thankful to have Dr. Sang Ick Chang as my doctor.
Excellent care and friendly personality.
I specially appreciated the follow up call I received from Dr. Chang a few days after the visit. It show real care! Thanks.
Very professional & caring!
Dr. Chang is an excellent doctor - and I have seen quite a few -
Dr. Chang has been my doc for several years. He's just great!
It was my first time with Dr. Chang, but he was awesome! Very knowledgeable and showed genuine concern for me; really felt taken care of.
Despite short time of appt. we covered everything thoroughly to my satisfaction.
Dr. Chang had obviously read all my reports and was totally up to date with my condition. Very kind and helpful.
Dr. Chang provides outstanding health care. It is no surprise that patients provide positive feedback.
Dr Ick-Chang was exceptional - kind, empathetic, knowledgeable & caring. One of the very best physicians I have ever seen!!!
Thanks for take care of my health!
Dr. Chang was friendly, expert, and efficient. I am happy that he is now my primary care physician.
He is great!
I appreciate care provider's professionalism.
I feel very, very fortunate to have him as my doctor. He is exceptionally knowledgeable and has a firm grasp of my medical history, despite having only seen him twice thus far. On top of that, he is kind, compassionate, funny, and seems like he has all the time in the world for me- despite the fact he is very busy. I repeat, i feel VERY lucky to have him as my doctor!
Dr. Chang is the best PCC I have ever had! He's friendly, connected, down-to-earth, knowledgeable and conversational. I could not ask anything more from my doctor.
Always outstanding!
Very thorough and personable
It was my first meeting with Dr. Chang and it was a very, very positive experience. i feel like i'm in great, capable, caring, considerate, and thoughtful hands. what more could a patient want?!
Dr. Chang is excellent in dr./patient relationship. He is caring & concerned & remembers me very well a good guy!
Dr. Chang is really great! ...had a lot of docs.
Very grateful that Dr Chang could fit me in so quickly, and I appreciate his thoroughness and care.
I like and have confidence in my doctor. So far, I've only seen him for annual wellness visits because it have no serious problems. For podiatry, dermatology he's recommended good people.
Dr. Chang is great very comfortable with him in his advise. Professionalism & personality.
thorough /checks with my condition
I can't believe how much time Dr. Chang spent with our son and me. 1 1/2 hours one time and an hour another. We just aren't used to that in a doctor's office these days.
Top MD @ Stanford.
Always a good experience when I see Dr. Chang.
Doc has been so amazing on email-saving me visits! Advising meds & opening a new spot for me on Friday afternoon! He is so kind & caring! Great doc!
Excellent Doctor. I had very serious anxiety and the doctor helped me understand what was wrong and how we could solve it as well as how long it would take. He also has saved me at least 3 visits via being so responsive 24-7 on the my health app. He is so great!
I feel fortunate to have Dr. Sang-Ick Chang for my provider.
Dr. Chang is a great listener. Very patient & does a great job explaining tests & test results. I highly value him as my doctor.
He always responds to my questions by email immediately and thoroughly!!! Very helpful and compassionate. I wish he were more available in the clinic. He's available only afternoon.
Sang-Ick Chang, M.D. is a wonderful provider. He is warm, professional, well informed, shared and was very generous with his time. My systolic blood pressure was slightly over normal and he shared research findings regarding hypertension and offered me choices to improve my health. I am very lucky that he is my physician. Thank you
The doctor is very competent.
Dr. Chang actually called ophthalmology to make sure it was safe for me to wait until the next business day to be seen at the Eye Clinic. Very impressive!! (Eye Clinic did not have available appts. on Friday).
Dr Chang does an excellent job and is a pleasure for me to work with on my care.
Dr. Chang is excellent.
The visit gave me confidence of being cared by competent and courteous medical staff.
He is a very experienced dr. He's recommendation is very good! His discussion about treatment is very effective, and useful. He needs to be patient to listen to all my concern. He seemed doesn't have enough time or patient to listen to my concerns.
Friendliness & care.
Friendly, courteous, informed.
Dr. Chang is awesome! Intelligent, knowledgeable, but very down to earth & approachable.
We have great confidence and comfort in Dr. Chang.
Dr. Chang called me @ home over the weekend to see if I was better.
Dr. Chang is the kind of doctor that I will go to, recommend to.
My initial visit. Excellent experience.

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