
Michelle Grenier MD FAAP, FACC (She/her)
Pediatric Echocardiography
Pediatric Cardiologist
8331 North Davis HighwayPensacola, FL 32514
Overview of Dr. Grenier
Dr. Michelle Grenier is a Pediatric Cardiologist based in Pensacola, FL, with subspecialty expertise in Pediatric Echocardiography. She completed her Fellowship in Pediatric Cardiology at Children's National Hospital and Johns Hopkins University, following a Pediatrics Residency at the latter. Her academic background includes an M.D. from Eastern Virginia Medical School and a B.S. in Evolutionary Biology from George Mason University. Dr. Grenier has held roles as a Pediatric Cardiologist and an academic professor, and she has served as the Director of Imaging Core Lab at Driscoll Children's Hospital. Her clinical interests include Kawasaki disease, echocardiography, heart failure, cardiomyopathy, and sports cardiology, with outreach efforts in rural areas. Her research is published in notable journals, focusing on echocardiography and cardiovascular conditions in children. She has received several honors, including the Fellow of the American Academy of Pediatrics and recognition by her peers among the Best Doctors in America.
Education & Training
Children's National Hospital/George Washington UniversityFellowship, Pediatric Cardiology, 1992 - 1994
Johns Hopkins UniversityFellowship, Pediatric Cardiology, 1991 - 1992
Johns Hopkins UniversityResidency, Pediatrics, 1988 - 1991
Eastern Virginia Medical SchoolClass of 1988
Medical College of VirginiaNo Degree, Medical Technology, 1981 - 1984
Certifications & Licensure
CO State Medical License 2022 - 2027
FL State Medical License 2025 - 2027
NM State Medical License 2014 - 2027
TX State Medical License 1995 - 2027
WY State Medical License 2023 - 2026
CA State Medical License 2016 - 2020
MS State Medical License 2013 - 2016
American Board of Pediatrics Pediatrics
American Board of Pediatrics Pediatric Cardiology- Join now to see all
Awards, Honors, & Recognition
- Fellow American Academy of Pediatrics
- Best Doctors voted by peers 2016
- Best Doctors in America 2010
Publications & Presentations
PubMed
- Acute Intensification May Reduce Persistent Coronary Artery Damage from Kawasaki Disease in Infants Younger Than 6 Months.Kirsten B Dummer, Samuel R Dominguez, Michelle Grenier, Lyndsey D Cole, Marsha S Anderson
The Journal of Pediatrics. 2026-09-01 - Fetal Cardiomyopathy in the Contemporary Era: A Multicenter Fetal Heart Society Research Collaborative Study.Angela McBrien, Astha Burande, Oana Caluseriu, Jennifer Conway, Shabnam Peyvandi
Circulation. Heart Failure. 2026-08-07 - 12 citationsFetal Heart Rate < 3rd Percentile for Gestational Age Can Be a Marker of Inherited Arrhythmia Syndromes.Nadia Chaudhry-Waterman, Bharat Dara, Emily Bucholz, Camila Londono Obregon, Michelle Grenier
Journal of Clinical Medicine. 2023-07-03
Journal Articles
- Usefulness of combined history, physical examination, electrocardiogram and limited echocardiogram in screening adolescent athletes for risk of sudden cardiac deathAnderson, JB, Grenier M, Edwards NM, et al, Am J Cardiol, 1/1/2014
- Left Ventricular Non-Compaction in association with Ebstein's Anomaly in infants: A marker of worse outcomePignatelli RH, Texter KM, Denfield SM, Grenier M, et al, JACC Cardiovasc Imaging, 1/1/2014
- Conduction Abnormalities in Pediatric Patients with Restrictive CardiomyopathyWalsh MA, Grenier MA, Jefferies JL, Towbin JA, Lorts A, Czosek RJ, Circ Heart Fail, 1/19/2012
Books/Book Chapters
Abstracts/Posters
- Anorexia Nervosa, Extreme Exercise, and Abnormal Cardiac IndicesGrenier MA, Cottrill CA, JT Bricker, Southern Society of Pediatric Research, 1/1/2009
- VV ECMO in neonate with Avalon Elite Catheter: Tips for insertion of catheterSkinner S, Ballard H, Zwishenberger J,Grenier M, Iacono J, Extracorporeal Life Support Organization, 1/1/2009
- Clinically occult cardiac abnormalities in acutely ill childrenBuzzard CJ, Grenier MA, Wilk DB, Rifai N, Lipsitz SR, Davis CM, Reh DD, Colan SD, Lipshultz SE, Pediatr Res, 1/1/1999
Lectures
- Twins and Sudden Cardiac Death at the Sports Cardiology sectionSan Francisco, CA - 1/1/2013
- Effects of Strength and Aerobic Training (Rowing) on Cardiovascular Structure in Elite High School Athletes1/1/2013
- An echo screening tool for sudden cardiac death in young athletes1/1/2012
Other
- An Adolescent with Complex Congenital Heart Disease at High AltitudeGrenier M
1/23/2016 - Syncope at the Free Throw LineGrenier M, Free Throw Line
http://www.acc.org/education-and-meetings/patient-case-quizzes/syncope-at-the-free-throw-line
1/28/2015 - The use of echocardiography in sudden cardiac death screeningGrenier M, Capitol Correspondent�s show The Prism
1/1/2012
Press Mentions
Episode #207: Breaking Free from Comparitis: How to Stop Comparing and Start ThrivingNovember 13th, 2024- PrefaceJune 12th, 2020
Heart Study Helps Save Lives of Young AthletesAugust 26th, 2012
Professional Memberships
- Member
Other Languages
- Spanish, French
Insurance Accepted
- Aetna Choice POS II
Aetna HMO
Anthem Blue Access PPO
Anthem Blue Preferred HMO
BCBS Blue Card PPO
BCBS Illinois PPO
BCBS Oklahoma BlueChoice
CIGNA HMO
CIGNA Open Access
CIGNA PPOCofinity PPO
Great West PPO
Humana ChoiceCare Network PPO
Medical Mutual of Ohio SuperMed Plus
Medical Mutual of Ohio SuperMed POS
Multiplan PHCS PPO
Multiplan PPO
Sagamore Health Plus
United Healthcare - Direct Choice Plus POS
United Healthcare - Direct Options PPO - Please verify your coverage with the provider's office directly when scheduling an appointment
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