Dr. Guillermo Umpierrez, MD
Not yet claimedEndocrinologist, Diabetes doctor · Physician (MD)
Atlanta, GA
Dr. Guillermo Umpierrez is an endocrinologist on the faculty of Emory University School of Medicine in Atlanta, Georgia. His listed area of focus is endocrinology, diabetes, and metabolism.
About Dr. Guillermo Umpierrez, MD
Updated Sep 20, 2026 · next review Dec 19, 2026Dr. Guillermo E. Umpierrez is an endocrinologist in Atlanta, Georgia. He is a Professor of Medicine in the Division of Endocrinology, Metabolism and Lipids at Emory University School of Medicine, and he serves as Chief of Diabetes and Endocrinology at Grady Health System. He is also clinical director of Emory's Diabetes and Metabolism Center and directs the clinical research unit at Grady Memorial Hospital.
He earned his medical degree at the University of Guayaquil in Ecuador and completed his internal medicine residency and endocrinology fellowship at Emory University School of Medicine. He is board certified in internal medicine and endocrinology.
Much of his work focuses on managing diabetes and high blood sugar in people who are in the hospital. He was the first author of a 2024 consensus report on hyperglycemic crises (such as diabetic ketoacidosis) written jointly by the American Diabetes Association, EASD, JBDS, AACE, and the Diabetes Technology Society. He also writes a regularly updated review chapter on managing diabetes in hospitalized patients, and he served as the American Diabetes Association's 2022 President of Medicine & Science.
Public records show payments from drug and device companies. Between 2021 and 2025, CMS Open Payments recorded $56,917.59 across 89 records, with the largest amounts from Sanofi Pasteur, Dexcom, Sanofi-Aventis, Recordati Rare Diseases, and Bayer Healthcare Pharmaceuticals. Payments from industry to doctors are common and legal, and are often tied to research or speaking work.
- Emory professor and Grady chief
- He is a Professor of Medicine at Emory University School of Medicine and Chief of Diabetes and Endocrinology at Grady Health System. hip.emory.edu
- Board certification
- He is board certified in internal medicine and endocrinology, a Fellow of the American Association of Clinical Endocrinology, and a Master of the American College of Physicians. diabetes.emory.edu
- Training
- He received his medical degree from the University of Guayaquil in Ecuador and completed his internal medicine residency and endocrinology fellowship at Emory University School of Medicine. news.emory.edu
- Led 2024 guideline on diabetic crises
- He was first author of the 2024 consensus report 'Hyperglycemic Crises in Adults With Diabetes,' published in Diabetes Care by a joint ADA/EASD/JBDS/AACE/DTS panel. diabetesjournals.org
- Hospital diabetes expertise
- He authors the Endotext chapter 'Management of Diabetes and Hyperglycemia in Hospitalized Patients,' last updated in October 2024. ncbi.nlm.nih.gov
- American Diabetes Association leadership
- He served as the 2022 President, Medicine & Science of the American Diabetes Association and sat on its National Board of Directors. diabetes.org
- Journal editor
- He is Editor-in-Chief of BMJ Open Diabetes Research & Care and of the ADA's Medical Management of Diabetes clinical series. ssciweb.org
- Research output and awards
- An AACE biography describes him as an author of more than 500 scientific manuscripts and book chapters and a principal investigator in hospital diabetes management trials; he holds the Master of the AACE distinction. pro.aace.com
- National clinical award
- He received the American Diabetes Association's 2013 Outstanding Physician Clinician in Diabetes Award. news.emory.edu
- Industry payments on record
- CMS Open Payments lists $56,917.59 across 89 records from 2021 to 2025, with the largest amounts from Sanofi Pasteur ($14,214), Dexcom ($11,502.88), and Sanofi-Aventis ($10,602.21). openpaymentsdata.cms.gov
Worth knowing
- After his 2024 hyperglycemic crises consensus report was published, other researchers submitted comment letters to Diabetes Care raising questions about parts of it, and the authors published a response. Scientific correspondence of this kind is a normal part of guideline publishing. diabetesjournals.org
- The research for this profile did not find any license discipline, lawsuits, or criminal matters. However, a direct licensee lookup with the Georgia Composite Medical Board and a court-records search were not completed, so this is not a confirmed clean record. medicalboard.georgia.gov
Industry payments (CMS Open Payments)
Open the CMS recordFederal law requires drug and device companies to report what they pay clinicians: meals, travel, speaking, consulting, and research. Payments are common and legal; the point is that you can see them.
2021 to 2025
$56,918
89 payments
| 2021 | $2,113 |
| 2022 | $38 |
| 2023 | $11,492 |
| 2024 | $11,272 |
| 2025 | $32,003 |
Top payers
- SANOFI PASTEUR INC.$14,214
- Dexcom, Inc.$11,503
- SANOFI-AVENTIS U.S. LLC$10,602
- RECORDATI_RARE_DISEASES_INC.$6,371
- Bayer Healthcare Pharmaceuticals Inc.$5,660
Payment types
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$25,157
- Consulting Fee$8,816
- Compensation for serving as faculty or as a speaker for a medical education program$8,760
- Travel and Lodging$5,763
- Honoraria$5,100
A word of caution about these numbers
A payment does not mean your doctor is compromised or acting unethically. Most of these entries are drug samples left for patients, or lunch brought in for the office staff, and the amounts are usually small. Research funding and speaking at medical meetings are also normal parts of a clinical career.
As a rough guide, a total under $15,000 a year is usually not a concern. Much larger sums, especially from one company whose product your doctor recommends to you, are worth asking about. You are allowed to ask.
Sources: med.emory.edu · diabetes.emory.edu · hip.emory.edu · med.emory.edu · news.emory.edu · pro.aace.com · diabetesjournals.org · pubmed.ncbi.nlm.nih.gov. Something wrong or out of date? Tell us and we will correct it.
Summary prepared with AI assistance from the public sources linked above, reviewed every three months. It is not a review, a rating, or an endorsement.
Practice location
Emory University School of Medicine
96 Armstrong St Se
Atlanta, GA 30303
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