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

Cleveland Clinic Main Campus


Additional Locations

Specialties & Treatments

Treatment & Services

  • Blood Tests
  • General Endocrinology
  • Medical Weight Management
View all 3 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 - Management
  • 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 70 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 - Endocrinology, Diabetes and Metabolism
  • Internal Medicine

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 11/4/2022, 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

67 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

27 Patient Comments

Reviewed on Dec 23, 2022

My Virtual Visits with Dr. Melissa Li-Ng are always very professional and successful in addressing my healthcare needs and concerns.

Reviewed on Dec 2, 2022

Dr Li Ng is outstanding. Her expertise, knowledge, care and exceptional skill in treating patients is unparalleled.

Reviewed on Dec 2, 2022

I am so very pleased with Cleveland Clinic and Dr Li Ng had provided outstanding care to me.

Reviewed on Oct 28, 2022

She is amazing! She is very informative and explains things clearly. Can say enough good things about her!

Reviewed on Oct 21, 2022

It is a pleasure having Dr. LiNg on my care team. She has taken my diabetes care to a new level.

Reviewed on Sep 30, 2022

Dr. Li Ng is probably one of the best physicians I have ever had providing care.

Reviewed on Sep 23, 2022

Hands down the best doctor in Cleveland.

Reviewed on Sep 9, 2022

Dr. Li Ng is the most caring, sincere doctor that I have ever had. I trust her wholeheartedly.

Reviewed on Sep 9, 2022

Excellent physician. Listened and reviewed test results and worked through treatment plan together to come up with a practical plan

Reviewed on Aug 26, 2022

Dr Li Ng is exceptional. Her knowledge skill and compassion is remarkable.

Reviewed on Jul 15, 2022

If there was a category that was "Excellent", I would have put that. Dr. Melissa is one of the most caring, knowledgable, and compassionate doctors that I have ever met with. I consider myself very lucky to have found her.

Reviewed on Jul 15, 2022

Actually would rate the doctor as excellent! Extremely concerned and looking for the best care for me

Reviewed on Jul 8, 2022

Excellent physician. Very skilled in her profession and also she is very practical

Reviewed on Jun 24, 2022

Dr. LiNg is a very caring doctor that listens and is truly interested in helping her patients.

Reviewed on Jun 17, 2022

Dr LiNg is a very good doctor and would recommend her to anyone

Reviewed on May 20, 2022

Overall we (my wife and I) have been very pleased with all of the staff here at Cleveland Clinic and the care they have provided us. We only wish the Clinic was closer to our home so the travel (3 1/2 hours one way) wasn't so long - but it is worth it! This was my first visit with Dr. Melissa Li Ng. She is not my current endocrinologist but I am seriously considering changing to her. I was looking for a second opinion to my care and she made basic changes to my insulin pump settings. So far this has resulted in better blood sugar readings for me. I am very grateful.

Reviewed on May 13, 2022

Dr Melissa Li Ng is a very professional doctor. She listen to you with concern and patience. She is very knowledgeable and thorough. I highly recommend her to other people.

Reviewed on May 13, 2022

Dr Melissa Li Ng is very professional. She is very concern and llisten to you. She is very knowledgeable, very patience and very passionate. I recommend her to other people.

Reviewed on Apr 18, 2022

Dr. Li Ng is the BEST of the best at Cleveland Clinic. Since she has become my endocrinologist I have gotten my diabetes under control and within acceptable limits. She is clear, informed, caring and communicates effectively.

Reviewed on Apr 8, 2022

Great Doctor. Well informed and easy to understand

Reviewed on Apr 8, 2022

Great Doctor. Good experience.

Reviewed on Mar 18, 2022

Dr. Li Ng is one of the best physicians I've had! She's very attentive and very thorough, she is also very responsive to my any request/questions I may have.

Reviewed on Mar 18, 2022

Dr ling is a terrific doctor. She encompasses great empathy, kindness, sincerity. She listens, gives feedback. She allows me to play an active role in my health. Such a great physician !!!!!

Reviewed on Mar 18, 2022

I always feel wonderful after seeing dr ling. She gives me a sense of empowerment over my disease. What a terrific gift!!!

Reviewed on Mar 4, 2022

Dr. Li ng was very knowledgeable about my symtoms!!! Very nice and polite !!!

Reviewed on Feb 4, 2022

I love Dr. Melissa. She listens to my concerns and explains everything to me. She is very knowledgeable and we always have a plan for what I need to do before my next visit.

Reviewed on Jan 21, 2022

Dr.Li Ng is an exceptional care giver.I really loved her caring manner and will to help.

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