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
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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
MO State Medical License 1994 - 2025
AR State Medical License 2022 - 2025
OK State Medical License 2022 - 2024
KS State Medical License 2022 - 2024
MN State Medical License 1991 - 1994
AL State Medical License Active through 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

1 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 Dec 1
12 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 Oct 1
11 citations
Aqueous vasopressin infusion during chemotherapy in patients with diabetes insipidus.
William P. Bryant, Aengus S. O'Marcaigh, Gregory A. Ledger, Donald Zimmerman> ;Cancer. 1994 Nov 1
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 Dec 1
52 citations
Abnormalities of parathyroid hormone secretion in elderly women that are reversible by short term therapy with 1,25-dihydroxyvitamin D3.
G A Ledger, Mary F. Burritt, P C Kao, W M O'Fallon, B L Riggs, Sundeep Khosla> ;The Journal of Clinical Endocrinology and Metabolism. 1994 Jul 1
55 citations
Genetic testing in the diagnosis and management of multiple endocrine neoplasia type II.
G A Ledger, Sundeep Khosla, Noralane M. Lindor, Stephen N. Thibodeau, Hossein Gharib> ;Annals of Internal Medicine. 1995 Jan 15
37 citations
Identification of multiple endocrine neoplasia, type 2 gene carriers using linkage analysis and analysis of the RET proto-oncogene.
M. S. Tsai, G A Ledger, Sundeep Khosla, Hossein Gharib, Stephen N. Thibodeau> ;The Journal of Clinical Endocrinology and Metabolism. 1994 May 1
Hypocalcemia and hypoparathyroidism.
Ledger, G. A.> ;Curr Ther Endocrinol Metab. 1994
121 citations
Role of parathyroid hormone in mediating nocturnal and age-related increases in bone resorption
G A Ledger, Mary F. Burritt, P C Kao, William M. O'Fallon, B. L. Riggs, Sundeep Khosla> ;The Journal of Clinical Endocrinology and Metabolism. 1995 Nov 1
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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

Hospital Affiliations

Mercy Hospital SpringfieldSpringfield, Missouri