Physician profile
Gregg M. Rader Sr., MD.
Certified by NBPAS in internal medicine and providing independent, evidence-based medical-legal review from Knoxville, Tennessee.

Clinical Evidence Review
Experience in medicine, military service, and veterans’ care.
Dr. Rader brings more than 30 years of clinical experience to complex medical-legal questions. His career includes 29 years in private practice and eight years as a staff physician with the U.S. Department of Veterans Affairs in Knoxville.
His work emphasizes careful record review, clear medical reasoning, current scientific literature, and opinions limited to the available evidence and his professional qualifications.
Credentials at a glance
Education & training
A Tennessee foundation. Nationally recognized training.
A Knoxville native and graduate of Bearden High School, Dr. Rader earned his undergraduate degree with honors from the University of Tennessee, Knoxville.
He received his Doctor of Medicine degree from the University of Tennessee Health Science Center College of Medicine in Memphis, where he was elected to the Alpha Omega Alpha Honor Medical Society.
He completed both his internship and residency in Internal Medicine at Barnes Hospital, Washington University School of Medicine, in St. Louis, Missouri.
Military & federal service
A physician shaped by service.
Two years of service
Dr. Rader served in the United States Marine Corps and received an Honorable Discharge.
Medical Service Corps
He served four years in the United States Army Medical Service Corps.
Medical Corps · Captain
He served three years in the Army Reserve Medical Corps, attaining the rank of Captain.
Continued service
Dr. Rader is a 100% service-connected disabled veteran and spent eight years caring for veterans at the VA in Knoxville.
Medical-legal practice
Focused review for consequential decisions.
Causation, contribution, and aggravation
Independent analysis of the relationship between diagnoses, exposures, accepted conditions, treatment, and claimed impairment.
Record review and nexus opinions
Review of service, VA, and civilian medical records addressing direct, secondary, aggravation, and exposure-related questions when medically appropriate.
EEOICPA and toxic exposure
Evaluation of work history, latency, diagnosis, scientific evidence, and alternative explanations in occupational and environmental illness matters.
Approach
Objective. Evidence-based. Independent.
Thorough — relevant records are organized into a coherent clinical chronology.
Reasoned — conclusions explain how the facts and medical evidence fit together.
Balanced — supporting and competing explanations are addressed directly.
Clear — complex medical issues are communicated in understandable language.
Credentials and services are presented for general professional information. Availability and scope are determined individually after conflict review and appropriate engagement.
Referral process
Four steps from inquiry to opinion.
01 · Initial inquiry
Share the referral question, jurisdiction, deadlines, and parties for conflict review—without protected health information.
02 · Scope & engagement
Confirm the materials, requested work product, timing, and terms.
03 · Secure transfer
Provide records only through the approved secure channel after engagement.
04 · Review & opinion
Receive clear communication, a thorough analysis, and the agreed deliverable.
consults@ClinicalEvidenceResearch.com · 865-755-5171 · 301 S Peters Road, Knoxville, Tennessee 37923
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