Advancing the Mission of Medicine

Population-level Research | Disease Management | Practice Analytics

Clinical Practice | Clinical Research | Public Health

“Epividian never fails to impress. You can say I said that and you can use me in your advertising.” – Michael Wohlfeiler, JD, MD, Chief Medical Officer, AIDS Healthcare Foundation


The CHORUS service enhances the doctor-patient relationship by helping doctors spend more quality time with patients. CHORUS transforms your existing EHR data into new, meaningful information and actionable insights.

  • Better care with analytics and disease management for HIV, HCV and other chronic diseases
  • Improve patient outcomes with quality metrics and health scores that highlight gaps in care
  • Improve caregiver performance with anonymous OPERA benchmarking
  • Quickly identify patients for outreach and for studies

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Check out: ONC Certification and Costs

(the ONC CERTIFIED HIT® is a registered trademark of the United States Department of Health and Human Services (HHS))


The OPERA® database and research network (Observational Pharmaco-Epidemiology Research & Analysis) is a multi-site observational database built from the complete patient health records managed in Electronic Health Record (EHR) systems from more than 400 participating caregivers across 55 U.S. cities.

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Physicians Conducting Research

Physicians Conducting Research

Bridging the gap between clinical medicine and clinical research.

The combination of CHORUS and OPERA® is a unique and powerful research platform.

Epidemiologists & Risk Management Scientists

Epidemiology, Outcomes and Risk Management Scientists

Utilize longitudinal healthcare data that solves difficult problems in pre- and post-approval phases.

Learn how OPERA® can improve clinical development and outcomes research.

Meet Patients Where They Are

Meet patients where they are.

Connect with patients using Ensemble® mobile app and gain deeper insights into the patient journey.

Gather behavioral trends through richly detailed and real-time data. Engage patients with timely and targeted surveying and patient education to positively impact care.

Contact Us about Ensemble®
Practitioners & Patient Population Managers

Practitioners, Patient Population Managers & Administrators

Enhancing the doctor-patient relationship by helping doctors spend more time with patients and less time on report generation.

CHORUS transforms your EHR data
into meaningful information.



MAESTRO is an adverse event management solution for pharmacovigilance departments of biopharma organizations. It provides a proactive, real time analysis of adverse events and evaluation of safety signals.

Contact Us about MAESTRO

Research Publications and Events

Both the Epividian technology platform and observational database program have been utilized by many physicians, epidemiologists and researchers to produce numerous papers, abstracts and presentations.

Next events:
CROI 2024 | 3MAR2024 – 6MAR2024

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