technology leaders. Reliable partners.

Leading Independent Pathology Platform

Consolidating the broadest range of sub-specialty experts under one tech-enabled umbrella.

versant diagnostics

what we do

Preferred Physician Partners




A World-Class, Physician-Led, Digital-Powered Platform

Versant Diagnostics (“VDX”) aims to become the nation’s largest independent Physician Services Company focused on Anatomic Pathology. We combine the most advanced technology with the most skilled and diverse set of pathologists to provide superior, one-stop service to hospitals and independent practices.

In Service of Physicians and their Patients

Our pathologists pride ourselves in assisting physicians in determining the correct diagnosis of a patient’s ailments. At Versant, precise and timely service to our physician partners comes before all else. Because we know every minute and minutiae counts when it comes to your practice and your patient's health.

Converse as Peers

Versant consolidates the strongest range of sub-specialty expertise under one roof. Our group comprises experts in gastrointestinal pathology, hematopathology, urology pathology, women’s health / gynecological / breast pathology, dermatopathology, renal pathology, general surgical pathology, clinical pathology / blood banking / transfusion medicine, and precision medicine. We are continuously adding more practices and specialties and welcome leading professionals to join our platform.

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our leadership

Well-versed Professionals

Ven Aduana, M.D.

Chairman, Cmo

Dr. Aduana is Chairman, Chief Medical Officer, and Co-Founder of Versant Diagnostics. Prior to Versant he was President and CEO of Alliance Pathology Consultants. Dr. Aduana is a key medical leader within AMITA Health, and nationally-recognized for adoption and implementation of Digital Pathology and Precision Medicine.

Jim Billington


Mr. Billington is Chief Executive Officer and Co-Founder of Versant Diagnostics. Previously he was Co-Founder and COO of American Esoteric Laboratories. Prior to that, he served as SVP Operations of AmeriPath. Before AmeriPath, Mr. Billington co-founded and led Inform DX. He began his career as a CPA, eventually becoming CFO of the Western Division of LabCorp.

Brian Carr

board director

Mr. Carr is a Board Director and Co-Founder of Versant Diagnostics. He has served on multiple boards including those of Igenomix and SingularBio. Previously, Mr. Carr was a Co-Founder and CEO of OralDNA Labs and Co-Founder, Chairman, CEO of American Esoteric Laboratories. Prior to that, Mr. Carr was President of AmeriPath.

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Peter Bernhardt, M.D.

Founding Member

Dr. Bernhardt is a Co-Founder of Versant Diagnostics. He is an expert in Flow Cytometry, Molecular Pathology, and Breast Pathology. Dr. Bernhardt is board certified in anatomic and clinical pathology. He holds a degree from the Duke University School of Medicine.

Frederick Ng, M.D.

Founding Member

Dr. Ng is a Co-Founder of Versant Diagnostics. He is an expert in Cytopathology, Surgical, Breast, and Gynecological Pathology. Dr. Ng is board certified in anatomic, clinical, and cytopathology. He holds a degree from the De La Salle University College of Medicine.

Alex Stefanowicz


Mr. Stefanowicz is Vice President of Human Resources at Versant Diagnostics. Prior to Versant he ran HR and Compliance for TREND Healthcare. Prior, he was Co-Founder and VP of Operations and HR at Integrated Lab Solutions, and VP of HR at USMD Health System.

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Gerry Hayden

Interim CFO

Mr. Hayden is a partner at TechCXO, where he partners with CEOs as a strategic finance advisor. Prior to TechCXO, he was CFO at HealthStream Inc. Prior to that, he held CFO positions at Medavant Health, Covation, Meridian Occupational Health, Envoy, Allied Clinical Labs, and Peak/Lincoln National Healthplan.

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