Text Size:

Agnes Diane Leon-Barriera, MD

Agnes Diane Leon-Barriera, MD
4.75 out of 5 stars
alt text

CenterWell Madison

2009 Gallatin Pike North
2009 Gallatin Pike North
Madison, TN 37115
Madison TN 37115

Education

Universidad Central Del Caribe

Languages spoken

English, Spanish

Board certifications

American Board of Internal Medicine 2024

NPI

1922564079
Dr. Agnes Diane León Barriera, MD, is a compassionate Internal Medicine Physician with a growing specialization in geriatric care. She earned her Doctor in Medicine from Universidad Central del Caribe in Bayamón, Puerto Rico, and completed her Internal Medicine Residency at Hospital Damas in Ponce, followed by a Transitional Year Residency at Centro Médico Episcopal San Lucas. Dr. León Barriera is currently completing a Geriatric Medicine Fellowship at Vanderbilt University Medical Center. Her academic contributions include research on delirium in older adults, radiation effects during pregnancy, and anemia awareness in Puerto Rico. She has presented at the Geriatric Research Education and Clinical Center and is an active member of the American Geriatric Society, American College of Physicians, and American Medical Association. Outside of medicine, Dr. León Barriera enjoys cooking, going to the movies, spending time with family, and traveling.

Patient satisfaction ratings and comments

4.75 out of 5 stars
19 Comments
Dec 30, 2025
I am very pleased with Center Well. The receptionists are always so friendly and kind, and I love Dr. Leon. She's very thorough. She spends a lot of time with me, and I will return.
Dec 17, 2025
Leon was very cold and for an annual physical did not even touch me. She could have at least palpated my thyroid. I felt she was intelligent but did not hear me st all. Other staff was beyond excellent .

Provider numbers for agent use

  • Aetna: 8452737
  • DeVoted: Pending
  • Healthspring: 1922564079
  • Humana: A13237
  • Medicare Railroad: Q01090130
  • Medicare: T1261707
  • United Healthcare: 00040703054
  • Wellcare: 4665521
  • WellPoint: 24678799

Provider NPI

1922564079

Agent contact

Contact a CenterWell Representative in your area.
You belong at CenterWell

Need more information? Let us help.

Our expert, compassionate healthcare professionals are always here and ready to help answer any questions you may have. That's how CenterWell delivers patient-focused primary care.