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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 +


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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 10/21/2021, 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

168 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
4.8 out of 5
Explains 4.8
Courtesy, Respect & Concern 4.8
Patient Rating of Doctor 4.8

35 Patient Comments

Reviewed on May 13, 2022

Dr Lansang is the best doctor I have ever had!

Reviewed on May 10, 2022

Dr. Lansang takes the time to help a patient understand what the diagnosis as well as walk through the different treatment options. In addition, she reviews lab values that are important to highlight pertaining to the disease and discusses insights into the future. She also provides information of current research and how it is applicable to the patient. This, I personally find incredibly helpful. The time she devotes to make sure her patient understands is also beyond appreciated. I am very satisified with my care and my relation with Dr. Lansang.

Reviewed on Apr 21, 2022

Great experience...wonderful knowledgeable physician.

Reviewed on Apr 21, 2022

Knowledgeable Caring physician

Reviewed on Apr 20, 2022

Dr Lansang is a fantastic doctor in man ways

Reviewed on Apr 5, 2022

I have the utmost trust in Dr Langsang. I have seen her for several years

Reviewed on Mar 25, 2022

She is a caring, kind physician

Reviewed on Mar 16, 2022

Dr. Lansang is an excellent listener and provides very clear direction regarding my issue. I never feel rushed and always feel heard. I would recommend her highly to anyone.

Reviewed on Feb 28, 2022

Yes physician was outstanding!

Reviewed on Jan 12, 2022

Dr. Lansing and office staff is superior.

Reviewed on Dec 27, 2021

Dr. Lansang's professional expertise & manner is outstanding in every way. She is extremely knowledgeable, thorough, personable & caring.

Reviewed on Dec 8, 2021

Dr Lansang id wonderful!

Reviewed on Dec 6, 2021

Dr. Lansang is very thorough, caring and precise In my care, and I appreciate that.

Reviewed on Nov 27, 2021

This doctor was very knowledgeable, pleasant, easy to talk to and I intend to follow her advice.

Reviewed on Nov 17, 2021

I was a Cleve Clinic employee for 35 yrs and have been retired for 11 years. During all these years I received excellent care from the Cleve Clinic. I have been treated by wonderful physicians. Dr Lansang has been the most caring, knowledgeable and helpful physician I ever had. She responds quickly to questions and concerns I submit to her through mychart or when I call into her office. She's the best!!!

Reviewed on Nov 16, 2021

Doctor was outstanding. She showed me test results of prior biopsy and explained them in detail. This was very reasuring of her abilities. Thank you

Reviewed on Nov 15, 2021

I had a real good experience Is at the doctors

Reviewed on Nov 12, 2021


Reviewed on Nov 10, 2021

Dr. M Cecilia Lansang is always prompt, polite, and professional. She is genuine in how she cares about her patients. I'm thankful to have her expertise helping me to be my very next each day. She is a true asset to the Cleveland Clinic.

Reviewed on Nov 3, 2021

I feel fortunate to have Dr Lansang as my endocrinologist!

Reviewed on Oct 25, 2021

Treated exceptionally well by provider.

Reviewed on Oct 4, 2021

Dr. Lansang is always most friendly, knowledgeable and efficient. I have every confidence in her care.

Reviewed on Oct 2, 2021

Dr. Lansang is an excellent provider.

Reviewed on Sep 1, 2021

Dr. Lansang very much involves me in the discussion of my care, and she explains all of her decisions with clarity.

Reviewed on Aug 30, 2021

Had a very good visit with Doctor Lansing and her intern.

Reviewed on Aug 30, 2021

Appreciated the opportunity to discuss my thyroid condition with Doctor Lansing.

Reviewed on Aug 30, 2021

Dr. Lansang is working with my sensitivity to any type of medication. She responds quickly with messages regarding my condition. I know she is extremely busy with her patient load. I've had many doctors in the past dismiss my inability to metabolize meds.

Reviewed on Aug 27, 2021

I started seeing my doctor in February of this year and yet to have any answers or treatment

Reviewed on Aug 19, 2021

I am happy with Dr. Lansing and her staff. Wait time minimal. She appears very concerned about my health when I have seen her.

Reviewed on Aug 18, 2021

I have been happy with Doctor Lansang

Reviewed on Aug 9, 2021

Dr. Lansang is very personable and listens to your concerns. She provides detailed explanations in layman terms that are easy to comprehend and shows that she truly cares about you as a person and your well being.

Reviewed on Jul 19, 2021

Dr. M. Cecilia Lansang is a caring, knowledgeable and thorough physician. She has been overseeing my healthcare for a while now and I have the utmost respect and confidence in her

Reviewed on Jul 2, 2021

The Doctor was wonderful. She was able to explain and put me at ease. I wish all doctors were like her!

Reviewed on Jun 22, 2021

Dr Lansing has been so great! She has answered every question asked & gotten back to me whenever I have a question or concern. Brianna has also been wonderful to me in this process.

Reviewed on Jun 22, 2021

Dr Lansing provided care, clear explanation of the care plan while listening to all my concerns & addressing. She's an excellent caregiver!

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