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Department Endocrinology and Metabolism Institute
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages Chinese, English
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus


Additional Locations

Specialties & Treatments

Treatment & Services

  • Blood Tests
  • Diabetes Care and Treatment
  • General Endocrinology
  • Medical Weight Management
View all 4 Treatment & Services +

Specialty in Diseases & Conditions

  • Acanthosis Nigricans
  • Acromegaly
  • Addison's Disease
  • Adrenal Disorders
  • Adrenal Insufficiency
  • Adrenal Tumors
  • Amenorrhea
  • Androgen Deficiency (Low Testosterone)
  • Androgen Excess
  • Beta-Cell Disorders
  • Calcium Disorders
  • Carcinoid Syndrome
  • Conn's Syndrome
  • Cushing's Syndrome
  • Diabetes
  • Diabetes, Gestational
  • Empty Sella
  • Endocrine Complications of Pregnancy
  • Endocrine Disorders
  • Familial Multiple Endocrine Neoplasia
  • Fasting Hypoglycemia
  • Galactorrhea
  • Goiter
  • Growth Hormone Deficiency
  • Growth Hormone Excess
  • Hirsutism
  • Hyperaldosteronism
  • Hyperandrogenism
  • Hypercalcemia
  • Hyperparathyroidism
  • Hyperprolactinemia
  • Hyperthyroidism
  • Hypertriglyceridemia
  • Hypocalcemia
  • Hypogonadism
  • Hypoparathyroidism
  • Hypophysitis
  • Hypopituitarism
  • Hypothyroidism
  • Ketogenic Diet
  • Klinefelter Syndrome
  • McCune-Albright Syndrome
  • Menopause
  • Menopause, Male
  • Metabolic Diseases
  • Metabolic Syndrome
  • Neuropathy - Diabetic
  • Obesity
  • Osteoporosis
  • Pancreatic Endocrine Tumors
  • Panhypopituitarism
  • Pheochromocytoma
  • Pituitary Cysts
  • Pituitary Disorders
  • Pituitary Stalk Lesions
  • Pituitary Tumors
  • Polycystic Ovary Syndrome
  • Primary Hyperaldosteronism
  • Prolactin Excess States
  • Prolactinoma
  • Reactive Hypoglycemia
  • Secondary Hyperparathyroidism
  • Sexual Hormone Disorders
  • Tertiary Hyperparathyroidism
  • Thyroid and Pregnancy
  • Thyroid Cancer
  • Thyroid Disease
  • Thyroid Nodule
  • Vitamin D Deficiency
View all 69 Specialties +


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About Melissa Li-Ng, MD

Dr. Melissa Li-Ng received her undergraduate degree from Columbia University and then received her medical degree from Stony Brook School of Medicine in New York.  She completed her medical residency at New York University Medical Center.  She proceeded to do a research fellowship at the Bone Mineral Research Center at Winthrop University Hospital in New York, doing research on osteoporosis, vitamin D and bone metabolism.  Dr. Li-Ng then completed her endocrinology fellowship at Georgetown University Hospital and Washington Hospital Center in Washington, D.C.  She joined the Endocrinology Department in July 2009.  She served as the Associate Program Director of the endocrinology fellowship program from 2011 to 2014.  In 2014, Dr. Li-Ng joined Cleveland Clinic Abu Dhabi, helping to establish the endocrinology department when the hospital opened in 2015.  She served as the Chief of Medical Informatics from 2016 to 2017.  Dr. Li-Ng returned to Cleveland in August 2017 as an Enterprise Physician Advisor in Medical Operations and as a Staff Physician in the Endocrinology and Metabolism Institute.  She was appointed the interim Chair of the Endocrinology and Metabolism Institute from March 2018 to January 2019, overseeing the endocrinology and endocrine surgery departments.  In April 2019, she was appointed Medical Director in International Operations to lead the Cleveland Clinic Connected collaboration with Luye Medical Group and to oversee Cleveland Clinic's growth in the Asia Pacific region. In addition, she leads various projects across the organization in Medical Operations and Strategy.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Georgetown University Hospital
Washington, DC USA

Fellowship - Winthrop University Hospital
Mineola, NY USA

Residency - New York University Medical Center
Internal Medicine
New York, NY USA

Medical Education - State University of New York Stony Brook School of Medicine
Stony Brook, NY USA

Undergraduate - Columbia University
New York, NY USA

Professional Highlights

  • Medical Director, Cleveland Clinic Connected - Luye Medical Collaboration (April 2019-present)
  • Interim Chair, Endocrinology and Metabolism Institute (March 2018-Jan 2019)
  • Chief, Medical Informatics, Cleveland Clinic Abu Dhabi (2016-2017)
  • Associate Program Director, Endocrinology Fellowship (2011-2014)
  • Executive Member, Admissions Committee, Cleveland Clinic Lerner College of Medicine (2011-2014)
  • Reviewer, Cleveland Clinic Journal of Medicine
  • Member, FDA Endocrinology, Metabolism and Diabetes Advisory Committee
  • Fellow, American College of Physicians


  • Internal Medicine
  • Internal Medicine - Endocrinology, Diabetes and Metabolism

Specialty Interests

Thyroid disease, diabetes, pituitary disease, polycystic ovarian syndrome, menopause, osteoporosis, parathyroid gland disease, adrenal gland disorders, vitamin D deficiency

Awards & Honors

  • 2009 - Recipient of C. Bertram Hoffberger Research Achievement Award for Outstanding Clinical - Georgetown University Hospital
  • 2006 - Recipient of Empire Clinical Research Investigator Program (ECRIP) research grant, BoneMineral Research Center, Winthrop University Hospital
  • 1997-1999 - Recipient of Wallace Taylor Memorial Scholarship, Columbia University, New York, NY


  • Endocrine Society
  • American Thyroid Association
  • American Association of Clinical Endocrinologists
  • American College of Physicians
Research & Publications

Research & Publications

See publications for Melissa Li-Ng, MD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 10/2/2023, Dr. Li-Ng has reported no financial relationship with industry that is applicable to this listing. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

116 Patient Satisfaction Reviews

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

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
5 out of 5
Explains 5
Courtesy, Respect & Concern 5
Patient Rating of Doctor 5

54 Patient Comments

Reviewed on Apr 5, 2024

Love Dr. Melissa and I am sad that she will no longer be seeing patients.

Reviewed on Mar 15, 2024

Dr Melissa Li Ng has the best bedside manner I have ever had

Reviewed on Mar 8, 2024

Should open provider's calendar past 6 months especially for making 6 month follow-ups to allow for a little leeway (eg, allow to schedule 2-3 weeks beyond 6 months)

Reviewed on Mar 8, 2024

Amazing provider. Listens and explains decisions made about my care

Reviewed on Mar 8, 2024

Dr. LiNg was super and I finally felt like someone understood my conditions and had a good plan for me.

Reviewed on Mar 1, 2024

Dr. Ling is the best doctor that I have had in Cleveland Clinic. She genuinely cares about patients. She listensed to me carefully and listed all the options of treatment to me. She is very knowledgeable and professional. Last time I saw Dr. Ling was in 2014. After 10 years, she is still amazing! I wish she could stay at Cleveland clinic forever. I will miss her a lot if she leaves. Dr. Ling wholeheartedly helped me. Once again, she is the best!!!

Reviewed on Feb 23, 2024

Loved this doctor. Wry thorough and informative!

Reviewed on Feb 23, 2024

Dr. Melissa is the best physician I've ever received care from. She shows no judgement, explains in ways I can understand, and genuinely cares about me.

Reviewed on Feb 16, 2024

Sure hate to see Dr Li Ng leave Cleveland Clinic she has been a great asset in getting my sugar readings under control and maintaining them at great levels

Reviewed on Feb 9, 2024

Great Doctor very caring, great listener, great communicator & thinks outside the box. She is hands down the BEST Doctor at Cleveland Clinic & BEST Doctor I have ever worked with in general. I am very fortunate to have her for my endocrinologist, she is a gift!

Reviewed on Feb 2, 2024

Dr. Melissa Li Ng took time to listen to my concerns. She was very kind and knowledgeable.

Reviewed on Jan 26, 2024

I tremendously appreciate my ability to communicate with Dr Li Ng

Reviewed on Jan 26, 2024

Dr Li Ng shows utmost respect for me as a person and goes to great lengths to explain the reasons for her suggestions. She explains the questions that other doctors have neglected to answer. I feel very grateful and fortunate to have her as my doctor.

Reviewed on Jan 26, 2024

Video visits are by far my choice with the exception of an exam. When providers don't offer video visits I am forced to drive quite a distance to sit and wait for the doctor who is often running an hour late for a discussion.

Reviewed on Jan 26, 2024

She was very attentive to my needs and concerns.

Reviewed on Jan 19, 2024

Dr LiNg is amazing! She is so thoughtful and kind and absolutely brilliant

Reviewed on Jan 12, 2024

Dr. Li Ng and her staff promptly respond to all medication and medical care request .

Reviewed on Dec 29, 2023

Dr Melissa Li Ng was very knowledgeable and kind. She really is an excellent doctor!

Reviewed on Dec 29, 2023

Dr Li Ng has the best bedside manner I have ever encountered. She genuinely cares

Reviewed on Dec 15, 2023

Dr. Li-Ng is an outstanding physician. She truly cares about me as a patient. My son is also a patient of Dr. Li-Ng's as we share the same condition. She will research new treatments and explain benefits and effects. We decide together which option to choose.

Reviewed on Dec 15, 2023

Great doctor.

Reviewed on Dec 8, 2023

Dr. Li Ng is outstanding. She has provided me fantastic care and has helped me get through the struggles from my kidney transplant and its complications. Additionally, I recently was hospitalized due to Covid and was positive for several weeks and placed back on steroids which caused my blood sugars to get out of control. Dr Li Ng monitored and prescribed medications to assist getting BS under control and now to hopefully start removing some insulin as I am no longer on steroids. She is so genine and knowledgeable and caring! The very Best!

Reviewed on Dec 1, 2023

She takes thd time to make me feel educated and part of my medical journey

Reviewed on Dec 1, 2023

She's very personable and cares about my health and that goes a ling way!

Reviewed on Nov 17, 2023

Dr. Melissa is the BEST! She is a caring, thoughtful and very knowledgeable physician professionally and overall genuine person. I am so grateful to have found her as my endocrinologist.

Reviewed on Nov 17, 2023

Melissa is one of the best doctors I have seen (and I have seen a lot of doctors). I greatly appreciate the time she has put into my health management. Unlike many physicians that I have seen, she spends the time with me to make sure my questions are answered.

Reviewed on Nov 3, 2023

Dr. Melissa is phenomenal! She created me so warmly and was enthusiastic about getting to the bottom of what my challenges are. I trust her completely!

Reviewed on Nov 3, 2023

Dr. Li-Ng came into the exam room already prepared for the visit. She brought the downloaded t-slim documentation. Well prepared. It was so nice to find a doctor who cared. She was able to tell me my setting needed to be changed. We discussed it and with her help made changes to the pump. She is an outstanding endocrinologist and deserves the title FACP.

Reviewed on Nov 3, 2023

I have had good experience with accessing my Doctor when I need more advice and treatment.

Reviewed on Oct 20, 2023

Dr. LiNg is the best! She has been tremendous helping me navigate my diabetes. Her recommendations for treatment and tools have really made a difference.

Reviewed on Oct 20, 2023

Dr. LiNg is such a good listener and is so very helpful. I am so grateful to have found her.

Reviewed on Oct 20, 2023

I can't say enough good about Dr LiNgShe definitely puts puzzle pieces together and works her hardest for her patients

Reviewed on Oct 13, 2023

Dr Melissa Li Ng is the best doctor. She is very personal, caring, good listener and etc. She give you the best service and she wants the best outcome for you. All doctors should be like her.

Reviewed on Oct 13, 2023

Dr. Li is a great doctor! She really cares! I really really like her! You should have more like her as Physicians! She respects my opinions and thoughts. I'm confident she treats everybody this way!

Reviewed on Oct 13, 2023

I will recommend everybody and anybody to her. She's the best! I wish all the doctor cared much as she does!

Reviewed on Oct 6, 2023

Dr ling is the bestGreat listener, very understanding

Reviewed on Oct 6, 2023

Dr Li Ng is thorough, compassionate and understanding in her care.

Reviewed on Oct 6, 2023

I would highly recommend Dr. Li Ng

Reviewed on Oct 6, 2023

Dr. LiNg is so kind, caring and talented. She is a joy to work with!

Reviewed on Sep 22, 2023

Dr. Li-Ng is a very knowledgeable and practical physician.

Reviewed on Sep 15, 2023

Dr. Li Ng is one of the best healthcare providers out there!

Reviewed on Sep 15, 2023

Dr.Li-Ng is the most genuine doctor I have ever seen. I actually get excited for my appointments with her.

Reviewed on Sep 8, 2023

Dr Melissa is wonderful at listening to the patient as well as thinking outside the box.

Reviewed on Sep 8, 2023

Excellent provider. Took the time to go through test results, discuss treatment plan of actions, paid attention to my concerns and worked towards viable treatment plan adjustments based on test results.

Reviewed on Aug 25, 2023

Could I give her a 10 in every area! Melissa is beyond outstanding. She's exceptional at every aspect of her care and as a doctor. I treasure her and credit her for being an essential part of my recent transplant team's success with my new kidney. Thanks Love her!

Reviewed on Jul 21, 2023

Dr. Melissa has been a blessing! She is simply the best! She listens, is caring and compassionate, offers options to my care, and always explains everything so that I understand it. I recommend her to anyone in need of amazing diabetic care.

Reviewed on Jul 14, 2023

Dr. Li Ng is great to have as a doctor

Reviewed on Jun 23, 2023

Dr. Melissa Li-Ng is always professional, kind and very knowledgeable. She addresses all of my concerns and provides a healthcare plan that best meets my needs to ensure the best overall care.

Reviewed on Jun 16, 2023

If I could give Dr Melissa 10 stars I would! She is so kind, personable, attentive and so willing to go the extra mile

Reviewed on Jun 2, 2023

Dr Ng is one of the best physicians that I have had at CCF. She really cares about her patients.

Reviewed on Jun 2, 2023

Her degree of compassion is wonderful

Reviewed on Jun 2, 2023

She is the best endocrinologist I have ever seen

Reviewed on Jun 2, 2023

Without Dr Li Ng making the appointment it would have been difficult. Your system in general is lousy and not patient friendly

Reviewed on May 12, 2023

Dr Li-ng is the best!

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