GregoryA.LedgerMDFACP, FACE

Endocrinology • Springfield, MO

Diabetes, Osteoporosis & Bone Metabolism Medicine, Thyroid

Chief Medical Officer Mercy Hospital - Springfield Communities

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Office
3231 S National Ave
Springfield, MO 65807
Phone+1 417-888-5660

Fax+1 417-888-6793

Education & Training

Mayo Clinic College of Medicine and Science (Rochester)Fellowship, Endocrinology, Diabetes, and Metabolism, 1991 - 1994
University of Alabama Medical CenterResidency, Internal Medicine, 1988 - 1991
Indiana University School of MedicineClass of 1988

Certifications & Licensure

IL State Medical License 2022 - 2026
AR State Medical License 2022 - 2025
KS State Medical License 2022 - 2025
MO State Medical License 1994 - 2025
OK State Medical License 2022 - 2025
MN State Medical License 1991 - 1994
AL State Medical License 1989 - 1991
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Endocrinology, Diabetes and Metabolism

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory EMR, Epic Systems Corporation, 2011-2013
Fellow (FACE) American Association of Clinical Endocrinology

Clinical Trials

A Study of LY2409021 in Participants With Type 2 Diabetes Mellitus Start of enrollment: 2014 Apr 01
Terminated
Phase 2
A Study to Compare a New Drug for Type 2 Diabetes to Placebo and to a Treatment Already Available for Type 2 Diabetes Start of enrollment: 2014 Apr 01
Completed
Phase 2

Publications & Presentations

PubMed

2 citations
Effects of Ultrasound-Guided Laser Ablation Therapy on Symptomatic Benign Thyroid Nodules, Using EchoLaser - Results of a Pilot Study in the United States.
Johnson Thomas, Gregory A Ledger, Tracy Haertling
Endocrine Practice. 2023-12-01
13 citations
Use of artificial intelligence and machine learning for estimating malignancy risk of thyroid nodules.
Johnson Thomas, Gregory A Ledger, Chaitanya Mamillapalli
Current Opinion in Endocrinology, Diabetes, and Obesity. 2020-10-01
20 citations
Aromatase expression in human germinomas with possible biological effects.
Aengus O'Marcaigh, G A Ledger, Patrick C. Roche, Joseph E. Parisi, Donald Zimmerman
The Journal of Clinical Endocrinology and Metabolism. 1995-12-01

Press Mentions

Greene Co. Health Officials Say COVID-19 Cases Among Young Children Are Rising at an Alarming RateJuly 28th, 2021
No Visitors Younger Than 14 Allowed at Springfield Hospitals Due to RSV Surge, Record FluDecember 2nd, 2022