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Daisy Duan, M.D.

Daisy Duan, M.D.

Headshot of Daisy Duan
  • Assistant Professor of Medicine

Specializes in: Adults (18+ years)


Languages: English, Chinese


Diabetes Mellitus, Endocrinology, Obesity

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Outside of Maryland & Washington D.C.

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Johns Hopkins Bayview Medical Center

Appointment Phone: 410-955-9270
4940 Eastern Avenue
Baltimore, MD 21224 map
Phone: 410-955-3663 | Fax: 410-367-2042

Johns Hopkins Medicine - Green Spring Station

Appointment Phone: 410-955-9270
10753 Falls Road
Pavilion II Suite 305
Lutherville, MD 21093 map
Phone: 410-955-3663 | Fax: 410-367-2042

Johns Hopkins Outpatient Center

Appointment Phone: 410-955-9270
601 N. Caroline St.
2nd Floor
Baltimore, MD 21287 map
Phone: 410-955-3663 | Fax: 410-367-2042


Dr. Daisy Duan is an Assistant Professor of Medicine. She practices as an endocrinologist with a focus on diabetes and obesity.

Dr. Duan sees patients at the Bayview and Johns Hopkins Diabetes Center, as well as The Johns Hopkins Healthful Eating, Activity & Weight Program at Greenspring Station. She enjoys partnering with her patients to individually tailor effective treatment regimens to improve metabolic health.

In addition, Dr. Duan is actively engaged in NIH-funded clinical and translational research. Her current research interests include the impact of meal timing on substrate metabolism and leveraging the tools of circadian biology to combat obesity and diabetes. more


  • Assistant Professor of Medicine

Departments / Divisions



  • MD; New York University School of Medicine (2014)


  • Internal Medicine; Icahn School of Medicine at Mount Sinai (2017)


  • Endocrinology Diabetes & Metabolism; Johns Hopkins University School of Medicine (2022)

Board Certifications

  • American Board of Internal Medicine (Endocrinology/Diabetes/Metabolism) (2020)
  • American Board of Internal Medicine (Internal Medicine) (2017)

Research & Publications

Clinical Trials

Actively Recruiting Clinical Trials:

Dinner Time for Obesity and Prediabetes (DTOP) -

Dinner Time 2: Effect of Delayed Eating or Sleeping on Metabolism - Full Text View -


Selected Publications

View all on PubMed

Duan D, Kim LJ, Jun JC, Polotsky VY. Connecting insufficient sleep and insomnia with metabolic dysfunction. Ann N Y Acad Sci. 2023 Jan;1519(1):94-117

Duan D, Pilla SJ, Michalski K, Laferrère B, Clark JM, Maruthur NM. Eating breakfast is associated with weight loss during an intensive lifestyle intervention for overweight/obesity. Obesity (Silver Spring). 2022 Feb;30(2):378-388. doi: 10.1002/oby.23340. Epub 2022 Jan 20

Duan D, Gu C, Polotsky VY, Jun JC, Pham LV. Effects of Dinner Timing on Sleep Stage Distribution and EEG Power Spectrum in Healthy Volunteers. Nat Sci Sleep. 2021;13:601-612. doi: 10.2147/NSS.S301113. eCollection 2021

Duan D, Wehbeh L, Mukherjee D, Hamrahian AH, Rodriguez FJ, Gujar S, Khalafallah AM, Hage C, Caturegli P, Gallia GL, Ahima RS, Maruthur NM, Salvatori R. Preoperative BMI Predicts Postoperative Weight Gain in Adult-onset Craniopharyngioma. J Clin Endocrinol Metab. 2021 Mar 25;106(4):e1603-e1617

Gu C, Brereton N, Schweitzer A, Cotter M, Duan D, Børsheim E, Wolfe RR, Pham LV, Polotsky VY, Jun JC. Metabolic Effects of Late Dinner in Healthy Volunteers-A Randomized Crossover Clinical Trial. J Clin Endocrinol Metab. 2020 Aug 1;105(8)

Activities & Honors


  • Christopher D. Saudek M.D. Fellowship in Diabetes Research, Johns Hopkins University School of Medicine, 2019
  • W. Leigh Thompson Excellence in Research – Clinical Faculty Award, Johns Hopkins University School of Medicine Department of Medicine, 2023


  • American Diabetes Association
  • The Endocrine Society
  • The Obesity Society
  • Sleep Research Society
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