Dr. Marilyn Tan, MD, FACE is double board certified in Endocrinology and Internal Medicine. She is a Clinical Associate Professor of Medicine at Stanford University School of Medicine. Dr. Tan practices general endocrinology, but her main clinical interests are outpatient and inpatient diabetes management. Her research interests include diabetes and post bariatric hypoglycemia. Dr. Tan is actively involved in resident and fellow education, and she has served as the Medical Student Clerkship Director, Residency Rotation Director, and Associate Program Director for the Endocrinology Fellowship Training Program at Stanford University School of Medicine. She is the chief of the Endocrine Clinic at Stanford Health Care.

Professional Summary

Professional Education
  • Fellowship: Stanford University Endocrinology Fellowship (2014) CA
  • Residency: Stanford University Internal Medicine Residency (2012) CA
  • Medical Education: Boston University School of Medicine (2009) MA
  • Board Certification: American Board of Internal Medicine, Endocrinology, Diabetes and Metabolism (2014)
  • Board Certification, Endocrinology, Diabetes, and Metabolism, American Board of Internal Medicine (2014)
  • Board Certification: American Board of Internal Medicine, Internal Medicine (2012)
  • BA, University of California, Berkeley, Molecular and Cell Biology (Magna Cum Laude) (2005)

Honors & Awards
  • 1st Place Stanford 2020 QI Challenge, Stanford Hospital and Clinics (2010)
  • Fellow, American Association of Clinical Endocrinology (2021)
  • Focus on Fellows Award, American Diabetes Association (2014)
  • Honors Certificate in Medical Education, Stanford University School of Medicine (2016)
  • Northern California Regional Poster Finalist, American College of Physicians (2012)
  • Phi Beta Kappa, University of California, Berkeley (2004)
  • Physician Educator, Stanford Japan Program (Okinawa, Japan) (2013)
  • Physician Educator, Stanford Japan Program (Tokushima, Japan) (2016)
  • Regents and Chancellor's Scholar, University of California, Berkeley (2001)

Administrative Appointments
  • Associate Program Director, Endocrinology Fellowship Training Program, Stanford University School of Medicine (2017 - 2019)
  • Clinic Chief, Endocrine Clinic, Stanford Health Care (2016 - Present)
  • Co-Chair, Redwood City Clinical Program Advisory Committee, Stanford Health Care (2018 - Present)
  • Director of Value Based Care, Stanford Division of Endocrinology, Stanford Health Care (2020 - Present)
  • Endocrinology Clerkship Director, Stanford University School of Medicine (2015 - 2017)
  • Member, Clinic Advisory Council, Stanford Health Care (2019 - Present)
  • Member, Diabetes Task Force, Stanford Health Care (2012 - Present)
  • Member, Stanford Diabetes Research Center, Stanford University School of Medicine (2017 - Present)
  • Physician Lead and Co-Chair, Clinic Performance Team 2, Stanford Health Care (2019 - Present)
  • Resident Rotation Director, Stanford University School of Medicine (2014 - 2017)


Specializing In

  • Diabetes
  • Diabetes Mellitus: Type 1
  • Diabetes Mellitus: Type 1 & 2
  • Diabetes Mellitus: Type 2
  • Diabetes Related to Cystic Fibrosis
  • Diabetes Related to Transplant
  • General Endocrine Disorders
  • Hyperparathyroidism

Practice Locations

Diabetes Care Program Palo Alto, CA
Palo Alto, CA

211 Quarry Road

Palo Alto , CA 94304

(650) 498-9000

Make An Appointment More Clinic Information » Getting Here »

Endocrinology Clinic at Boswell Building Stanford, CA
Stanford, CA

300 Pasteur Drive, 1st Floor, Suite A175

Stanford , CA 94305

(650) 721-1300

Make An Appointment More Clinic Information » Getting Here »

Patient Ratings

(69 Ratings)

Overall Rating

View Ratings by Category

Friendliness/courtesy of CP
CP explanations of prob/condition
CP concern for questions/worries
Care provider's efforts to include you in decisions about your care
CP efforts to include in decisions
Clear Communication
CP spoke using clear language
Time Spent
Patients' confidence in CP
Recommend to others
Likelihood of recommending CP
Wait times
Wait time at clinic

How Our Ratings Work

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

Patient Satisfaction Survey Disclaimer

Patient Reviews

(102 reviews)

I only have compliments for this place. Kind and professional.
Exemplary doctor!
my visits with Dr. Tan are always v positive & she has great communication skills.
I'm so happy and confident to be a patient of Dr. Marilyn Tan.
It's great to finally have a doctor who spends time with me and is very knowledgeable.
Dr Tan is the be best! After going to her for a second opinion, I switched to permanently seeing her from my care/and surgeries at UCSF.
I would not go anywhere else but here to Stanford
The care provider is excellent. I always have positive experience with her. She is brilliant. I have thyroid problem as my thyroid ad parathyroid glands were taken out 30 years ago. I am also diabetic. I am feeling healthy and my sugar level has been perfect. based on my blood tests and research she prescribes medications to manage my health. She is knowledgeable and highly skilled..
I am so fortunate to have Dr. Marilyn Tan as my doctor. She was highly recommended and i can see why. She helped me feel so much better in just a few days. She explains things very thoroughly and easy to understand. She is very responsive and has the best bedside manners.
Dr. Tan was fantastic. Shared lots of knowledge and had great bedside manner/empathy towards my condition. Was proactive and provided great recommendations during visit, included me in decision making in next steps, provided immediate lab results & feedback via MyHealth. Impressed with her assistants as well. Only issue I had was securing a follow-up appointment since the one date given by the doctor I had a conflict with travel so needed to schedule a different date option. Got caught up in a crazy phone tree/time sink when trying to make that return appointment. System seems limited when removed from direct contact with person securing the appointment times available with doctor. Told there was no direct number to call back to at the doctor's office/sent through a phone tree at the clinic several calls later and emails later.....Seems to be an easy fix with direct communication simplified some how.
Dr. Tan is very friendly, patient and explains issues with easy to understand words and sentences. She's caring and always listens to my concerns. She's an excellent care giver!
Again, excellent
Dr Tan was excellent!! She clearly explained what I needed and how to proceed with my care. I would highly recommend her!
Dr Tan spent a significant amount of time answering all my questions. I felt valued and cared for as a patient.
dr. Tan is an exceptional physician. I trust her completely.
Dr Tan is incredibly knowledgeable and has the best bed side manner. She thoroughly explained my condition and different options of treatment in a way that I can easily understand. I felt great and confident after my appointment that Dr Tan was my endocrinologist and so glad that I chose Stanford Care for my health concern.
Dr. Tan was wonderful. She answered all of my questions and was very knowledgeable.
Dr Tan has shown a level of concern that I have never experienced with any other Doctor at STANFORD. Bravo!
Dr. Marilyn Tan is an exceptional doctor. Her knowledge, expertise, care, and treatment is what every doctor should strive to give to their patients.
I am so glad that Dr. Tan is in my medical life. She is fabulous.
Marilyn spelled out the procedure in the future very good and in a logical manner.
Dr. Tan takes the time to get to know me and remember what's going on with me. She anticipates my questions & concerns. I trust her so much.
Love Dr. Tan. good listener - explains in an understandable language - very patient - warm and caring - good sense of humor
always a delight to meet with Dr. M. Tan
Dr. Tan is the best!!!
Dr. Tan did a great job understanding the patients.
Very good.
Dr. Tan is one of the finest care providers I have experienced. Her knowledge and expertise, combined with her care and humanity, make her exceptional in her field.
Keep up the good work!
Dr. Tan always takes her time and never makes me feel rushed. She listens to all my concerns and answers all questions I may have.
Dr Tan listened to my concerns and explanation patiently. She did not make feel being rushed.
Dr. Marilyn Tan is the best endocrine dr. I have ever had. She knows her stuff and she cares! She never rushes me and she pays attention to the fine detail. Other drs. can really learn a lot from her. She's so good that I want to keep her to myself but of course I will not.
the greatest
(Bad) I expected more from the care provider. I had some issues to discuss but felt no encouragement to discuss other issues. There's nothing to be done for me.
Always good.
Good experience.
Dr. Tan was amazing! She had read my whole long file and summarized my problems perfectly. She explained her diagnosis and recommended treatment thoroughly & professionally.
Dr. Tan has always been attentive to whatever concerns that I have had concerning my health. She always explains things so that it's easily understood.
love dr tan, warm and very knowledgeable
Dr. Tan is an excellent Doctor.
I congratulate you for having very professional people in your work.
Dr. Tan is amazing
Dr. Tan was a caring and empathetic practitioner. She is outstanding in her profession and an asset to Stanford Medicine
Dr. Tan is an excellent Dr.
Dr. Tan should be Physician of the Year! She is an excellent provider and ranks 10 in every category.
again, amazing staff. I am very grateful for all of them.
I am so glad that Dr. Tan has become part of my health care team. She is outstanding.
Dr. Tan is a wonderful doctor, she pays attention to greater details. I really appreciate her being my doctor.
I found Dr. Tan to be quite pleasant and very good a explaining things.
Provide patient w/compassionate, quality care & treat the patient w/kindness.
Dr Tan is very professional and really cares about the over all Heath about her patience's. I always look foreword to seeing Dr Tan!
Phenomenal doctor!!!
Doctor Marilyn Jing Tan, MD - Excellent.
I really liked my care provider one really smart Dr.
Dr Tan is really approachable and experienced. This was a routine follow up, it was quick and she followed up with my labs, etc. I feel confident I'm in great hands with Dr Tan.
Very knowledgeable, courteous and caring doctor and staff. I would highly recommend and actually look forward to my next visit!
Dr, Tan is an excellent provider!
I love Dr. Tan. She is awesome! She spends more than adequate time with me and is willing to answer any questions and discuss my thoughts and lets me have input into my treatment plan.
Dr. Marilyn Tan is an exceptional doctor. I'm very grateful to be under her care. Thank you.
Very good.
Dr. Tan showed up very short after I was escorted to the patient care room. I found her very personal. I immediately felt she cared about my health. She was efficient, but thorough. I felt special to be in her care.
Dr. Tan is a great doctor with a great bedside manner. The staff on site are always very friendly and professional. My biggest problem is that since I'm being treated for something that causes anxiety it is troubling that my doctor does not have the full authority to prescribe all the required medication for my specific ailment, causing me to have to go to other doctors outside of Stanford, in order to get all the prescriptions required to treat my ailment. I understand the need for oversight but I don't understand tying the hands of the doctors so that they cannot write prescriptions for certain medication (anti anxiety medication re: for Graves related anxiety) when it is clearly called for in specific instances.
Quick yet thorough visits works for me.
Dr. Tan is professional yet kind. I felt at ease throughout my appointment. She made me feel valued and cared for.
Dr. Tan is the best! She is knowledgeable and always willing to answer all of my questions in detail. You never get the impression that she is rushing and she always seems very focused and engaged on me and my health concerns.
nothing to complain about.
an amazing doctor! amazing experience!
Like coming to Dr Tan, she is on top of my case, has reviewed notes and tests before talking to me, she can definitely relate and understand concerns.
Dr. Tan was very caring and friendly. She greeted me and asked about how I was feeling. She even asked me about my family which made her seem very kind.
I was highly impressed that the doctor walked in and was already familiar with my case and had a plan ready for me. I didn't have to explain my history and was immediately confident in her.
Dr Tan is a excellent doctor that I look forward to seeing!! wish she was my family's doctor!
Dr. Tan is a great physician, her ease of communications are also extremely welcoming. My overall experience was very good.
Dr. Tan and Emily (the nurse practitioner) were friendly and professional. I really appreciate their easy going professional demeanor. They were caring and gave me explanations in a clear way that I could understand. They also made me feel cared for.
Dr Marilyn Tan has made me feel at ease with the care she is giving me for my medical problem and I have confidence in her ability to care for my condition.
Dr. Tan is excellent.
Dr. Tan is outstanding in every respect. I have recommended her to others & will continue to do so.
Dr. Tan is awesome! She spends time with me, answers my questions, and engages in a real discussion. She listens, is extremely knowledgeable and willing to try different approaches to improve my blood glucose. I actually look forward to my appointments with her because I know I will learn something and feel that we are working as a team to help me achieve the best health outcomes possible.
My care givers are very good about discussing medicines and how they work and how I should use them. Also they listen to any concerns or questions I may have and they respond with clear and understandable answers.
During my appointment my doctor said the following: "I wish I had a medical student here so that they could see this." It made me feel like a lab rat versus a cared for patient. That comment also made me fearful about my condition.
really nice talking to Dr Tan.. discussed all conditions, previous labs, and the path forward. Very good experience.
Always very pleasant and cordial.
very good
Dr. Tan was excellent -- she was very reassuring about previous test results, and provided a lot of explanation about my diagnosis. It was clear she was very knowledgeable.
Dr. Tan was attentive, detail oriented, and took the time to allow me to understand and participate in my care.
Also was able to handle rare/complex issues. She was fantastic!
Dr. Tan is awesome! Very knowledgeable, willing to answer question and communicate complex technical answers (which I wanted). She is extremely friendly and approachable. Willing and able to have an extremely in depth discussion about my condition, options, and potential future treatments.
Dr. Tan is one of the few Stanford doctors that actually listened to me. I'm the patient and I am well versed on my own healthcare, and she listened to the concerns I had and addressed them.
Doctor was proficient and courteous. She was attentive to my worries and help me with my health concerns.
She is amazing! One of the best doctors I have seen in my life, and I have seen many.
Very good experience.
I cannot say how grateful I am for Dr. Tan's involvement in my care. She has been incredibly kind and caring. She's extremely professional and equally gracious.
Recommended her to my mother.
Friendliness - Good.
I took several of Dr Tan's cards, and will recommend her to a few friends with similar issues.
Dr. Tan has a sound knowledge of her field. She was able to link with then breath and length of my comprehensive medical history and give me advice to connect information from one specialest to her specialty.
I could have used more info about my new medications including poss. side effects.
Dr. Tan is extremely smart caring & communicative. A+.
Dr. Tan was wonderful. She really took the time to explain everything and answer questions.

View More »

Referring Physicians

  • Send referrals online
  • View referral status
  • Access medical records