Sara Yap, MD

Endocrinology

(815) 936-8909

accepting new patients

4.9 out of 5 (139 ratings)

Locations

Riverside Medical Group - Endocrinology Specialists

100 Fitness Drive
Bourbonnais , IL 60914

View hours

Monday

8:00am - 5:30pm

Tuesday

8:00am - 5:30pm

Wednesday

8:00am - 5:30pm

Thursday

8:00am - 5:30pm

Friday

8:00am - 5:30pm

Riverside Medical Group - Endocrinology Specialists

(815) 936-8909 View Details

Explore Endocrinology

About Me

Dr. Yap is an endocrinologist in Bourbonnais who cares for adults with gender affirming care and diabetes.

I chose medicine because it combined science, book-based knowledge, and daily interaction with patients.
Endocrinology drew me in because conditions like diabetes require communication, teamwork, and long-term support.
I earned my medical degree from University of Santo Tomas Faculty of Medicine and Surgery (Manila, Philippines), completed residency training at John H. Stroger Hospital of Cook County (Chicago) and completed fellowship training at Emory University (Atlanta).
I am board certified in Endocrinology by the American Board of Internal Medicine.
My clinical focus includes gender affirming care and diabetes. I also speak Tagalog.

Education

Residency:
John H. Stroger Hospital of Cook County (Chicago)

Internship:
Chinese General Hospital and Medical Center (Manila, Philippines)

Fellowship:
Emory University (Atlanta)

Doctor of Medicine:
University of Santo Tomas Faculty of Medicine and Surgery (Manila, Philippines)

Board Certifications

Endocrinology, American Board of Internal Medicine

Languages

Tagalog

Conditions Treated

Diabetes
Gender Affirming Care

Age Groups Seen

Adults (All Ages)

Provider Ratings

4.9 out of 5

(139 ratings)

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

29 Reviews

04/20/2026

Dr. Yap is amazing. I am so happy she is my doctor. She explains everything so I can understand it. She also has me sit so I can see the information she sees on the computer screen.

03/19/2026

Great doctor Yap

03/19/2026

Satisfied

02/21/2026

I felt like a partner in my health decision

02/11/2026

It was an excellent visit!

02/10/2026

Dr. Yap was amazing, she explained everything from the beginning and was very attentive. I can't express how grateful I am to have been able to have her as my Doctor. She is very thorough and attentive. Dr. Yap did not rush our appointment and made sure all my questions were answered

01/23/2026

Dr. Yap is amazing. I am so glad she is my doctor. She has my Type 2 Diabetes under control and always explains the plan of action in ways I can understand. When I had surgery up north for a different matter, she was In contact with the doctors, so they understood my diabetes and my medication. She goes above and beyond. So lucky to have her at Riverside.

01/20/2026

The doctors are great

12/18/2025

Dr yap cares. So rare to find sometimes. I am so very comfortable when speaking with her.

12/18/2025

Excellent service

11/27/2025

Good

11/25/2025

Dr explained everything very thoroughly

11/11/2025

I was happy with my appointment!

10/07/2025

Dr. Yap really takes the time to explain things throughly and in a dialect that helps you to understand everything completely.

10/04/2025

First time meeting Dr. Yap. Dr. Yap was EXCELLENT - professional, friendly, caring and very thorough. VERY happy with Dr. Yap.

09/20/2025

We always talk over different options and offers to make sure I stay on track with my health.

09/20/2025

Dr. YAP is the most caring, knowledgeable endocrinologist I have ever met.

08/21/2025

Good

08/19/2025

Dr. Yap is very thorough, I am very pleased with her care in improving my condition.

08/09/2025

This practice is wonderful

08/06/2025

Excellent visit!

07/26/2025

She is a very conscientious doctor. Trust her completely.

07/12/2025

I was extremely happy with Dr. Yap

07/05/2025

Dr Yap is not very empathetic and almost robotic Her treatment approach to Hashimotos is outdated and she refuses to listen to alternative treatment methods

07/05/2025

Dr Yap is a very caring and kind person.

06/24/2025

Dr. Yap always gives her full attention to her patients. I have always felt comfortable enough to be able to talk to her about any issues I have.

06/23/2025

Dr. Yap is always friendly and very upbeat and encouraging.

06/18/2025

Dr Yap always explains things and takes her time .

06/10/2025

I would highly recommend all the person's who helped me and showed high concern

(815) 936-8909

Insurance & Coverage

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Riverside Healthcare accepts most major insurance plans, including Medicare, Medicaid, and many more. View our full list of accepted plans or call our team to confirm your coverage before scheduling.

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(815) 933-1671