Dr. Jeffrey Chang, MD


Endocrinology, Diabetes & Metabolism | Male

Dr. Jeffrey Chang, MD
Dr. Jeffrey Chang, MD is an endocrinology, diabetes & metabolism doctor who practices in Peoria, IL. He is 61 years old and has been practicing for 37 years. Dr. Chang is affiliated with OSF Saint Francis Medical Center.

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Dr. Chang's Experience

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Memberships & Professional Affiliations

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Visiting Dr. Chang

Dr. Chang accepts 9 insurance carriers

Dr. Chang is now accepting new patients

Affiliated Hospitals

Hospital Quality
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Dr. Chang's Reviews

Likelihood of recommending Dr. Chang to family and friends
based on 38 total reviews (8 with comments)
Dr. Chang's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Comments (8)
I had an untreated thyroid storm that landed me in the ER twice. I had no medication and I am the mother of a baby. No one would see me (St Louis: 6 month wait, or pay $2,000 to get on schedule; Dr Sfeir wouldn't see me because I lived "outside service area" - nevermind the oath to help people). I am thankful my ER Dr referred me to Dr Chang. He and his staff are caring and understanding. Someone finally listened, figured out what was wrong with me and is helping me. It quite possibly saved me.
in Poplar Grove, IL |
I have seen Dr Chang a few times now and he was awesome. He explained everything thoroughly and answered all my questions. He was kind and his nurses are wonderful as well.
in Peoria, IL |
I've been seeing Dr Chang for a few years now and he's amazing. He is not a talker, but he does answer questions and is open to suggestions.
Peoria, IL |
I went to see Dr. Chang a couple of times, each time leaving frustrated, but returned to give the office another chance. The nurse sprayed my blood all over the floor by not following the correct steps for a blood draw. Part of me thinks she could have been drunk. Dr. Chang has poor eye contact, no bed side manner, and walked out of the room each visit without answering my questions, or even saying goodbye. He doesn't seem happy with his work, which is unfortunate.
in Peoria, IL |
This was my first visit, and I didn't have to wait very long to see him. He was friendly, courteous and very knowledgeable about my condition. He shared a lot of information with me and took time to answer my and my husband's questions. Definitely put my mind at ease.
in Oklahoma City, OK |
I was very pleased with his medical insightfulness. Within the first visit i was impressed with his throughness. During the 2nd and 3rd appointments I realized his personal thoughtfulness. I highly recommend him.
in Peoria, IL |
Spent time with me and was very helpful. He was very concerned since I have been a diabetic for almost 2 decades and still have uncontrollable numbers even with my insulin pump. He gave me a lot of insight and came up with a program for me. So far have seen lower and amazing numbers and beginning to feel much better. Have been to many for my diabetes but this is the one who is willing to really help me.
Dr. Chang doesn't take the time to listen to his patients. He only focuses on weight and not on the source of the problem. He even told me that he was surprised I did so well, he didn't expect me to be successful.
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Dr. Chang's experience matches your search based on the following criteria:

  •  Based on total number of patients treated over the last 12 months
  •  Specializes in Endocrinology, Diabetes & Metabolism
  •  Board certified in Diabetes, Metabolism & Endocrinology and Internal Medicine
  •  No malpractice claims found
  •  No sanctions found
  •  No board actions found

Awards & Recognition

  • Awards & Honors
    • Healthgrades Honor Roll
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  • Media & Publications

    Dr. Chang has no media or publications listed.

Background Check

  • 0
    Malpractice Claims

    No malpractice history found for Illinois.

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  • 0

    No sanctions history found for the years that Healthgrades collects data.

    What is a sanction or disciplinary action
  • 0
    Board Actions

    No board actions found for the years that Healthgrades collects data.

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Board Certifications

Why It Matters: Dr. Chang's Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • Diabetes, Metabolism & Endocrinology
  • Internal Medicine

Conditions Treated

  • Adrenal Gland Diseases
  • Adrenal Incidentaloma
  • Adrenal Insufficiency
  • Autoimmune Diseases
  • Autoimmune Thyroid Diseases
  • Benign Tumor
  • Bone Disorders
  • Breast Diseases
  • Calcium Metabolism Disorders
  • Cancer
  • Cushing's Syndrome
  • Diabetes Type 1
  • Diabetes Type 2
  • Goiter
  • Graves' Disease
  • Gynecomastia
  • Hashimoto's Disease
  • Hypercalcemia
  • Hyperlipidemia
  • Hyperparathyroidism
  • Hyperthyroidism
  • Hypoparathyroidism
  • Hypopituitarism
  • Hyposmolality and Hyponatremia
  • Hypothyroidism
  • Lipid Disorders
  • Osteopenia
  • Osteoporosis
  • Parathyroid (Gland) Tumor: Other than Malignant
  • Testicular Dysfunction
  • Thyroid Cancer
  • Thyroid Cyst
  • Thyroid Disease
  • Thyroiditis
  • Vitamin D Deficiency


  • Medical School
    Yonsei University / College Of Medicine

    Graduated in 1980

  • Internship Hospital
    St Joseph Hospital

    Completed in 1982

  • Residency Hospital
    St Joseph Hospital

    Completed in 1984

  • Fellowship Hospital
    University Of Illinois

    Completed in 1985

Languages Spoken

  • English

Memberships &
Professional Affiliations

Dr. Chang does not have any memberships or affiliations listed. If you are Dr. Chang and would like to add memberships or affiliations, please update your free profile.


  • Endocrinology, Diabetes & Metabolism
  • Endocrinology & Metabolism

Procedures Performed

Dr. Chang does not have any procedures listed. If you are Dr. Chang and would like to add procedures you perform, please update your free profile.