Sky D Graybill


Major, Army

Department of Primary Appointment:
School of Medicine
Chief of Endocrinology
Location: San Antonio Military Medical Center, TX
Research Interests:
Internal Medicine
Office Phone


Fellowship, Endocrinology, Walter Reed National Military Med Ctr, Bethesda, MD, 2012
Residency, Internal Medicine, Walter Reed Army Medical Center, Washington DC, 2009
M.D., Temple University School of Medicine, Philadelphia, PA, 2006
B.S., Pre-medicine with minors in Dance and Military Studies, The Pennsylvania State University, State College, PA, 2002


Dr. Graybill is a clinical, academic and administrative endocrinologists who working with medical technicians, medical students, residents, fellows and colleagues. She oversees and provides resource-conscious delivery of exceptional and compassionate patient care; promote readiness and military professional development; educate the next generation of medical professionals; foster a spirit of inquiry through research. She is currently researching appropriate testosterone therapy and thyroid surgery for indeterminate nodules.

Career Highlights: Positions, Projects, Deployements, Awards and Additional Publications

Current position: Chief of Endocrinology, Brooke Military Med Ctr (BAMC), San Antonio, TX

Deployment: Internal medicine staff, Bastion Role 3 Hospital, Bastion, Afghanistan, 2013

Overseas assignment: Critical Care Director and internal medicine staff physician, 121 Combat Support Hospital, Seoul, South Korea

Adjoint Assistant Professor of Medicine, University of Texas Health Science Center at San Antonio, TX

Representative Bibliography

Proffitt A, Faulconer R, Kreishman P, Graybill S, Craig D. “An Unusual Cause of Peritonitis in A Deployed Environment.” J R Army Med Corps;161(1):69-70. PMID#24254746

 Graybill S, Vigersky R. “Effects of α-blocker therapy on active duty military and military retirees for benign prostatic hypertrophy on diabetic complications.” Mil Med.;180(3):355-60. PMID#25735029

Zhuang Z, Yang C, Ryska A, Ji Y, Hou Y, Graybill S, Bullova P, Lubensky I, Klöppel G, Pacak K. “HIF2A Gain-of-Function Mutations Detected in Duodenal Gangliocytic Paraganglioma.” Endocr relat cancer. 2016 May;23(5):l13-6. DOI: 10.1530/erc-16-0148. PMID#27130043

Paulus A, Colburn J, True M, Beckman D, Davis R, Wardian J, Graybill S, Folaron I, Lewi J. “Evaluation of total Daily Dose and Glycemic Control for Patients Taking U-500 Regular Insulin Admitted to the Hospital.” Endocr Pract. 2016 Oct;22(10):1187-1191. PMID#27359287

True M, Folaron I, Wardian J, Colburn J, Sauerwein T, Beckman D, Kluesner J, Tate J, Graybill S, Davis R, Paulus A, Carlsen D, Lewi J. “Leadership Training in Endocrinology Fellowship? A Survey of Program Directors and Recent Graduates.” J Endocr Soc. 2017 Mar; 1 (3): 174-185. PMID #29264475

Buehner M, Raj T, Will M, Learn P, Graybill S. “Novel Neuroendocrine Tumor in Multiple Endocrine Neoplasia Type 1.” Fed Pract. 2017 May;34(suppl 3):S62-S64

Kuiper BW, Graybill S, Tate JM, Kaufman N, Bersabe D. After the Fall: Improving Osteoporosis Treatment Following Hip Fracture. Osteoporos Int. 2018 Jan; DOI: 10.1007/s00198-018-4416-x. PMID# 29464276.

Wardian J, Tate J, Folaron I, Graybill S, True M, Sauerwein T. “Who's Distressed?: A Comparison of Diabetes-related Distress by Type of Diabetes and Medication.” Accepted to Patient Education and Counseling.

Folaron I, True MW, Wardian J, Sauerwein TS, Sim A, Tate J, Rittel A, Zarzabal L, Graybill S. “Effect of Military Deployment on Diabetes Mellitus in Air Force Personnel.” Military Medicine 2018; accepted for publication.

Kluesner J, Beckman D, Beauvais A, Kravchenko M, Wardian J, Graybill S, Colburn J, Folaron I, True M. “Analysis of current thyroid function test ordering practices.” J Eval Clin Pract. 2018;24:347–352.PMID: 29105255. DOI: 10.1111/jep.12846