alert icon Coronavirus

Now scheduling COVID-19 vaccine appointments for ages 12+
Schedule a vaccine appointment
COVID-19 vaccine FAQs

Going to a Cleveland Clinic location?
New visitation hours
Masks are required for patients and visitors (even if you're vaccinated)

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


Is Cleveland Clinic Part of Your Insurance?

Review a list of accepted insurance plans for our Northeast Ohio locations or learn more about purchasing a contracted managed care plan.

View All Plans

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 for the Cleveland Clinic Connected collaboration with Luye Medical Group.  In this role, Dr. Li-Ng is the Chief Physician representing Cleveland Clinic for the Luye Medical Group in Shanghai, China, and provides end-to-end leadership to furthering the goals of this initiative.

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 10/7/2020, 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

64 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 May 21, 2021

Great way to see my Doctor without the drive downtown. She took her time and made me feel important to her.

Reviewed on May 21, 2021

She is amazing. Best doctor I have ever had for anything.

Reviewed on May 14, 2021

Dr. Melissa Li Ng was fantastic. she ordered more test that my endocrinologist in Greensboro had not thought. the test indicated an area that could possibly be the source of my issues.

Reviewed on May 14, 2021

This doctor was the most knowledgeable and genuinely caring doctor I have ever had. She took as much time as I needed and answered all my questions in a way that I understood. I wish all doctors were like her.

Reviewed on May 7, 2021

The best Doctor and team I have ever worked with!

Reviewed on May 7, 2021

Dr. Li-Ng and Dr. Isaacs are the best around! Knowledgeable, friendly, and compassionate.

Reviewed on Apr 9, 2021

One of the most intelligent, kindest, and most thorough doctors I have ever had the pleasure of knowing. She treats me like a PERSON and empathizes with my pain. Other providers could learn much about how to treat their patients by watching her.

Reviewed on Mar 15, 2021

Dr. Li Ng is the most sincere, caring and compassionate care giver i have had throughout my time as a patient at Cleveland Clinic.

Reviewed on Mar 15, 2021

it is always nice to see the doctors face to face, but it is comforting to know that they provide the same care and attention on a video visit.

Reviewed on Jan 29, 2021

Dr. Li Ng is awesome physician. She is very responsive and transparent with her understanding of my medical condition. I like the fact that she explains how the medication works based on the dosing and my personal factors. It really helps me understand my health issues so much better.

Reviewed on Jan 11, 2021

Absolutely fabulous!! I have been suffering with low blood glucose episodes almost daily for going on 2 years. the doctor quickly figured out likely causes...I am VERY grateful!!

Reviewed on Jan 11, 2021

My virtual visits with Dr. Ling are always thorough. All of my questions, care and concerns are always addressed. Very professional and kind.

Reviewed on Jan 11, 2021

I am very blessed to have Dr. Melissa Li-Ng as my doctor. She is always professional, thorough and kind. She is always on top of my care and what's best for my overall health and well-being.

Reviewed on Nov 30, 2020

Dr. Li-Ng consistently demonstrates warmth, care and great expertise in our interactions. She is such an asset to the Clinic!

Reviewed on Nov 20, 2020

absolutely fabulous experience. my physician retired so setting up new physician appointment can be very stressful but my experience was effortless!!

Reviewed on Nov 20, 2020

was so very pleased with my physician. she was very detailed with her explanations and enlisted my opinions and wants with all choices in my healthcare plan. this was a very positive experience!!!!

Reviewed on Nov 13, 2020

Dr. Li-Ng was very kind and compassionate. she took her time with me , which I greatly appreciated.

Reviewed on Oct 16, 2020

Dr.Li-Ng is very knowledgeable and always shows empathy for her patients. She is an asset for the Clinic because she her quest for knowledge and research is indispensable.

Reviewed on Sep 4, 2020

Dr. Li Ng is such an amazing doctor. She is caring, always professional and very knowledgeable.

Reviewed on Sep 4, 2020

Dr. Li Ng is the best!

Reviewed on Sep 4, 2020

i was imprest with dr li-ng she is very professional and nice i will like her as my new dr.

Reviewed on Aug 28, 2020

love Dr. Li Ng. She is percise, answers all my questions. She's one if the most knowledgeable Doctors I've ever had, yet she is compassionate.

Reviewed on Aug 28, 2020

My visit with Dr Li-Ng was everything I hoped it would be. All my concerns were addressed. Our discussion and relevant instructions were printed out for me to take home. And information was shared with my home doctor. My visit was excellent!

Reviewed on Aug 7, 2020

i have never had in person visit to compare to, but the provider was excellent

Reviewed on Jun 12, 2020

beyond excellent physician

Reviewed on Jun 5, 2020

Dr was very personable and professional. you could tell when the wheels were turning. she answered things 2 other endos couldn't, and she was correct.

Reviewed on Jun 5, 2020

Melissa Li Ng MD was very nice and helpful!

Related Videos Featuring Melissa Li-Ng, MD

Related Videos Featuring Melissa Li-Ng, MD

Back to Top