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

Cleveland Clinic Main Campus

Specialties & Treatments

Treatment & Services

  • Diabetes Center
  • Fine Needle Aspiration
  • General Endocrinology
  • Specialty Women's Health
  • Thyroid Aspiration
  • Thyroid Ultrasound
  • Thyroid Ultrasound And Biopsy
View all 7 Treatment & Services +

Specialty in Diseases & Conditions

  • Adrenal disorders
  • Adrenal insufficiency
  • Adrenal Tumors
  • Beta-cell disorders
  • Calcium Disorders
  • Carcinoid Syndrome
  • Conn's Syndrome
  • Cushing's Syndrome
  • Diabetes
  • Diabetes - Management
  • Diabetes, Gestational
  • Empty sella
  • Endocrine Disorders
  • Familial Multiple Endocrine Neoplasia
  • Fasting hypoglycemia
  • Galactorrhea
  • Goiter
  • High Cholesterol
  • Hirsutism
  • Hyperaldosteronism
  • Hyperandrogenism
  • Hypercalcemia
  • Hyperparathyroidism
  • Hyperprolactinemia
  • Hypertension - High Blood Pressure
  • Hyperthyroidism
  • Hypertriglyceridemia
  • Hypocalcemia
  • Hypoparathyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Osteopenia
  • Osteoporosis
  • Panhypopituitarism
  • Parathyroid Disease Description
  • Pheochromocytoma
  • Pituitary Disorders
  • Pituitary Tumors
  • Polycystic Ovary Syndrome
  • Primary Hyperaldosteronism
  • Prolactin Excess States
  • Prolactinoma
  • Reactive hypoglycemia
  • Secondary Hyperparathyroidism
  • Thyroid and pregnancy
  • Thyroid Cancer
  • Thyroid Disease
  • Thyroid Nodule
  • Vitamin D Deficiency
View all 49 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 M. Cecilia Lansang, MD, MPH

Dr. Lansang is a Professor of Medicine at Cleveland Clinic Lerner College of Medicine of the Case Western Reserve University and is the Director of the Inpatient Diabetes Service of the Department of Endocrinology, Diabetes and Metabolism here at the Cleveland Clinic.  She received her clinical and research training in Endocrinology, Diabetes and Metabolism at the Brigham and Women's Hospital, Harvard medical Schools, Boston, MA.  She obtained her Master of Public Health degree from the Harvard School of Public Health.  She had served as faculty at the Harvard School of Medicine and as staff physician at the Brigham and Women's Hospital.  She then moved on to the University of Florida, where she was interim chief of the Division of Endocrinology before joining the Cleveland Clinic. 
Dr. Lansang has published a book on diabetes, and research articles in the realm of inpatient diabetes, diabetic renal disease, steroids, and medical education, and has received multiple awards in excellence in teaching.
Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Graduate School - Harvard School of Public Health/Harvard University
Boston, MA USA

Fellowship - Brigham & Women's Hospital
Boston, MA USA

Residency - University of Santo Tomas Hospital
Internal Medicine

Internship - University of Santo Thomas
Internal Medicine
Manila, Philippines,

Medical Education - University of Santo Tomas Faculty of Medicine & Surgery
Manila, Philippines

Additional Training

  • Clinical and Research Fellowship, Brigham and Women's Hospital, Harvard Medical Schools, Endocrinology, Boston, MA 2001

    Graduate, Harvard School of Public Health, Boston, MA 2001


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

Specialty Interests

Diabetes, hypoglycemic disorders, hypothyroidism, hyperthyroidism, thyroid nodules, PCOS, hirsutism, adrenal insufficiency, adrenal mass, prolactinoma

Awards & Honors

  • Magna cum laude, Doctor of Medicine, University of Santo Tomas, Manila
    Summa cum laude, Bachelor of Science in Biology, Accelerated course, University of Santo Tomas, Manila
    Exemplary Teacher of the Year, University of Florida, 2006, 2008, 2010
    Excellence in Teaching, University of Florida, 2007, 2009
Research & Publications

Research & Publications

See publications for M. Cecilia Lansang, MD, MPH.

(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 10/25/2019, Dr. Lansang 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

216 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
4.9 out of 5
Explains 4.9
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

46 Patient Comments

Reviewed on Dec 10, 2019

Truly excellent provider

Reviewed on Dec 9, 2019

This was my first appointment with Dr. Lansang. She was very easy to talk to and was able to address my concerns. She was thorough in her exam and explained things as she went along. Dr. Lansang is a physician that I will continue to work with and would highly recommend.

Reviewed on Nov 14, 2019

I might have had to wait an hour but I didn't mind after my visit with the dr. Dr. Langsang spend quaility time with me. She answered all my questions. She did not seemed rushed. I felt like she was concerned about my diagnosis and care.

Reviewed on Nov 4, 2019

Love Dr. Lansang

Reviewed on Nov 4, 2019

Excellent Dr. Very please d with her.

Reviewed on Oct 30, 2019

scheduling was extremely easy and I got in to see the dr very quickly

Reviewed on Oct 30, 2019

Dr Lansang was AMAZING. She listened. she explained. she came up with a treatment plan that makes perfect sense. She truly wants to help me and I left my appointment with an understanding of my condition and all of my questions answered.

Reviewed on Oct 30, 2019

My favorite doctor of ALL the doctors I have ever seen.

Reviewed on Oct 29, 2019

Dr Lansang is wonderful. My favorite physician.

Reviewed on Sep 30, 2019

I and my family were very impressed by Dr LanSang! she was kind courteous and so understanding. she answered all of our questions and really listened to me!! That was so important! She was very understanding of the time we had to travel to my visit and planned accordingly for any testing and follow up visits!! So impressed!

Reviewed on Sep 30, 2019

dr Landsang is great. thank you

Reviewed on Aug 23, 2019

Dr. Lansang is outstanding. She treats her patients as individuals and not as just a number.

Reviewed on Aug 23, 2019

Dr. Lansing is quite open and provided a great deal of information about my condition. She is very gentle also.

Reviewed on Aug 20, 2019

Dr Lansang and her resident Dr Naseer were both wonderful kind and caring and great listeners

Reviewed on Aug 19, 2019

I really like the doctor. she took the time to listen to both myself and my husband. she was patient and kind and I didnt feel rushed or like she was in a hurry to see other people. she took the time with us and wasn't rushing out the door.

Reviewed on Aug 15, 2019

Dr. Lansang is wonderful! I have no bad comments.

Reviewed on Aug 1, 2019

She is both personal and professional. I am grateful she is my physician.

Reviewed on Jul 31, 2019

she is a fantastic doctor. I travel from NJ to continue seeing her each year.

Reviewed on Jul 31, 2019

I absolutely love Dr. Lansing. Dr. Lansing is very personal and cares about her patients. She is very knowledgeable about the Endocrine system. I would recommend her and I do to people I know that have Thyroid issues. I can't say enough about her and how she has helped me through this rough journey in my life.

Reviewed on Jul 31, 2019

I always recommend the Clinic and Dr. Lansing to people I know with Thyroid issues.

Reviewed on Jul 23, 2019

Dr. Lansing has a very good "bed side" manner. She listens and shows concern for health issues presented.

Reviewed on Jul 15, 2019

I feel so blessed to be able to have Dr. Lansang as my Endocrinologist! She's the best and always so caring and kind and very thorough! I've been seeing her for approximately 10 years & completely trust her care and expertise!

Reviewed on Jul 11, 2019

hands down the best doctor o have ever seen

Reviewed on Jul 10, 2019

I love Dr. lansang! She takes the time to explain everything. You can tell that she loves her job. I would recommend her to anyone needing that kind of doctor

Reviewed on May 29, 2019

Dr. Lansang is a wonderful doctor and listens to you. I was treated by her when I loved in Florida. She has compassion for her patients and respect them as well. Dr. Lansang is a true pleasure as well as being so educated in her field and beyond.

Reviewed on May 23, 2019

Dr. Lansang truly cares about my proper treatment and listens to my concerns. She is keeping me alive in spite of myself.

Reviewed on May 17, 2019

As always, I had a very good visit with Dr. Lansang. I always feel that she listens and cares and is truly interested in improving my overall health. She seems to really think through my situation to come up with the best methods to get my sugars under control. She gave me options so that I could choose how what I felt would work the best for me and that is greatly appreciated.

Reviewed on May 13, 2019

Dr LanSang is a very conscientious. She is thorough about researching all the options available. She makes sure that she has all of my information in my file that is available about my health. I feel educated, confident and assured that we are making a plan for my condition for the future. She is impressive and kind.

Reviewed on May 8, 2019

Dr. Lansing had called my home within hours of my visit to discuss test results and change in dosage of drug. I cannot say enough positive descriptions for her. She explains everything clearly. I am impressed by the promptness with which she returns emails and phone calls; and she makes the calls, not an assistant. I drive from Erie PA to see her. Awesome caring doctor!

Reviewed on May 6, 2019

dr Lansang went above and beyond to explain my conditions

Reviewed on May 2, 2019

Dr. Lang is a great doctor. She listened to my complaints, asked about my history and gave recommendations. She spent awhile with me. She genuinely cared and was pleasant.

Reviewed on Apr 18, 2019

Dr Lansang is an excellent doctor! Very caring and listens and answers all my questions and concerns.

Reviewed on Apr 11, 2019

Dr. Lansang is the best endocrinologist I've ever had. She takes my opinion into consideration, spends the time necessary to hear and address my concerns, and is knowledgeable about this area of medicine. I would recommend her to any other diabetics I know.

Reviewed on Mar 7, 2019

Dr. Lansang took her time to explain. She was most empathetic. She was incredibly good with me when she did biopsy. She explained everything she would do and she gave me notice.

Reviewed on Mar 5, 2019

Dr. Lansang answered all of my questions and concerns. She explained it in different ways until I understood.

Reviewed on Feb 28, 2019

Dr. Lansing is a great doctor. it's always a positive experience seeing her. She explains everything. You can ask her anything.

Reviewed on Feb 20, 2019

After having Dr. Sethu Reddy and Dr. Hamryhian for several years, it's been difficult to find a provider to replace their expertise and I have found exactly what I was looking for in Dr. Lansang! She also has a wonderful "bedside manner" and truly shows care and compassion for me as a human and not just a patient.

Reviewed on Feb 18, 2019

Dr Lansang is awesome! She is thoughtful,smart and wants you to feel better. Dr Landang does not rush you through your appointment . I felt less frustrated and more confident after my visit that I will feel better soon .

Reviewed on Feb 6, 2019

I saw Dr. Lansang In 2013 for the first time, she is the best doctor. she is caring, explains things extremely well and she wants you not to worry, she says let me that. My visit in February was the same exact way. This time I had a lot going on, she caught something very important on my blood test that my family doctor didn't. I would never go to anyone else. My endocrinologist surgeon, Dr. Siperstein even told me she is the best, don't loose her as a doctor because you're in the best care with her!

Reviewed on Feb 6, 2019

She cared for me as a person and answered my questions. I feel confident in her hands, that is why I returned to her and will keep returning. I was overwhelmed my my family doctor who missed things on my blood work and put me on a med I didn't need etc. Dr. Lansang caught it, agreed I didn't need the one medication and to sum it up I was crying, she gave me a tissue and a great big hug. Let me worry about everything you relax! she is phenomenal and goes way above and beyond!!! Thank you!!!

Reviewed on Feb 6, 2019

Dr Lansang is a very caring person and is willing to discuss treatment options that will help. Explains things in a way that I can understand.

Reviewed on Feb 4, 2019

She listens and is active in problem solving. Very compassionate, yet direct. Extremely good doctor

Reviewed on Jan 24, 2019

Dr.Lansang is an amazing physician. She never rushes you through the appts and always listens.

Reviewed on Jan 10, 2019

I have always have the best experience with Dr. Lansang. She always has time to answer any questions and always thoroughly explains results of testing. I always get great recommendations as to how to proceed for next visit. I always enjoy my appointment.

Reviewed on Jan 10, 2019

very polite, very helpful. very busy day about 30 minute wait to see Dr. Lansang

Reviewed on Jan 4, 2019

Dr. Lansing is the absolute best. I wish she could be my over all Dr. She is very engaging and cares about you as a person.

Related Videos Featuring M. Cecilia Lansang, MD, MPH

Related Videos Featuring M. Cecilia Lansang, MD, MPH

Back to Top