About
Landrey Fagan, MD, MS, NCMP, is a board-certified Family Medicine and Preventive Medicine physician and the founder of Four Mile Creek Health. She earned her undergraduate degree at Cornell University and completed her medical degree at Georgetown University School of Medicine. Her graduate work at Georgetown produced a master's thesis on bioidentical transdermal hormone replacement therapy. She trained at Lawrence Family Medicine Residency in Massachusetts, where she was selected as Chief Resident, and completed a fellowship in Operative Obstetrics and High Risk Pregnancy Management.
Dr. Fagan has practiced family medicine with obstetrics since 2012, working in Lynn and Longmont before settling in Boulder. She holds the NCMP designation as a Nationally Certified Menopause Practitioner and speaks Spanish as a Qualified Bilingual Staff member. She taught at Tufts University School of Medicine for five years and has served on the Boulder County Board of Health since 2019. Her clinical passions include hormone replacement therapy, metabolic health, aging and longevity, and preventive care. She created a CGM Guidance resource for non-diabetic patients and serves as a featured speaker with MyMenoMap. Outside the clinic, she lives in Boulder with her husband, three children, and their dog, Peanut.
Education & Training
Undergraduate
Cornell University College of Arts & Sciences, BA (1999–2003)
Medical School
Georgetown University School of Medicine, MD (2004–2008)
Residency
Lawrence Family Medicine Residency, Lawrence, MA (2008–2011)
Fellowship
Fellowship in Operative Obstetrics & High Risk Pregnancy Management, Lawrence, MA (2011–2012)
Additional Training
Georgetown University Graduate School of Arts & Sciences, MS (2003–2004)
Certifications
Languages
English, Spanish
Conditions Treated
Who is Dr. Fagan right for?
Dr. Fagan is an excellent fit for adults seeking comprehensive primary care with a strong preventive focus. Women navigating perimenopause or menopause benefit from her NCMP designation and deep expertise in hormone replacement therapy. Patients interested in metabolic health, weight management, or continuous glucose monitor guidance will find her approach thorough and practical. Her bilingual Spanish skills make her a strong option for Spanish-speaking patients in Boulder. Note that Dr. Fagan's panel is currently full, though a waitlist is available.
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Frequently Asked Questions
Dr. Fagan specializes in hormone replacement therapy, metabolic health, weight management, and preventive care. She also has extensive experience in maternal health and obstetrics. Her clinical focus on aging and longevity makes her a strong fit for patients taking a proactive approach to long-term health.
Yes. Dr. Fagan holds board certifications in both Family Medicine and Preventive Medicine. She also carries the NCMP designation as a Nationally Certified Menopause Practitioner, reflecting her specialized training in hormonal health.
Yes. Dr. Fagan speaks Spanish as a Qualified Bilingual Staff member. She can conduct appointments in Spanish for patients who prefer it.
Dr. Fagan's graduate thesis at Georgetown University focused on bioidentical transdermal hormone replacement therapy. She earned the NCMP designation and serves as a featured speaker with MyMenoMap. Hormone replacement therapy is one of her primary clinical passions.
Yes. Dr. Fagan trained at Lawrence Family Medicine Residency in Massachusetts, where her peers selected her as Chief Resident. She followed that training with a fellowship in Operative Obstetrics and High Risk Pregnancy Management.
Yes. Dr. Fagan taught at Tufts University School of Medicine for five years. She has also served on the Boulder County Board of Health since 2019.
Dr. Fagan developed a CGM Guidance resource specifically for non-diabetic patients interested in continuous glucose monitor data. It helps members use CGM insights to better understand their metabolic health and make informed lifestyle decisions.
Dr. Fagan's panel is currently full. Prospective patients can join a waitlist to be notified when a spot becomes available.
Doctor profile last updated March 21, 2026