About Us

Why RxEOB?

Your trusted partner with decades of real-world experience on top of a modern technology platform.


Our programs touch more than 45 million patients’ health care data every day

Analytics tools for any health plan user

Precision targeting for precision communications

Building a brand through trusted member relationships


To support survival and growth through 21st Century digital  communications strategy.

Mobile Optimized Portals
Data Security Specialists
Building a Trusted Member Relationship
Data Management & Outcomes Reporting

Our People

Robert S. Oscar

  • R.Ph
  • CEO/ President

Robert Oscar has more than 25 years of experience in healthcare. Throughout much of his career he has developed and implemented successful programs to effectively manage pharmacy benefit risk, including pioneering work in the Medicare HMO market.

Before founding RxEOB, Mr. Oscar worked in the medical information systems industry-designing, developing and implementing several different claims analysis tools.

Robert, a Registered Pharmacist licensed in Virginia, is a graduate of Ohio Northern University, and is certified in pharmacy-based immunization. Robert is active in several professional groups including the National Council on Prescription Drug Programs, and the Academy of Managed Care Pharmacy.

He is married, has two daughters, enjoys reading and volunteers with the Henrico County Medical Response Corps with a special interest in community immunization programs and infant mortality prevention.

Bryan York

  • CPA
  • Chief Operating Officer

Bryan York has more than 25 years of experience in pharmacy management and information systems, risk management and internal controls design. 

He is a certified public accountant licensed in the Commonwealth of Virginia and a longtime member of the National Council of Prescription Drug Programs (NCPDP).

Prior to joining RxEOB, Bryan served as a Financial Examiner for the Virginia State Corporation Commission.

He graduated Cum Laude with a Bachelor of Science degree in Business Administration from Virginia Commonwealth University and is a veteran of the United States Army.

Howard Darvin

  • M.D., FACS
  • Chief Medical Officer

Howard Darvin has spent 28 years in the clinical practice of vascular surgery in both academic and community settings. He attended Howard University and graduated from their 6 year B.S.-M.D. program in 1982.

He trained in general surgery at U.C.L.A. Medical Center in Los Angeles, California and at Mount Sinai Medical center in Cleveland, Ohio. His vascular Surgery training was at St. Anthony Medical Center in Columbus, Ohio.

Howard founded Vascular Solutions, a vascular surgery practice, built it into the largest private practice vascular surgical group in Northeast Ohio. Vascular Solutions merged with University Hospitals of Cleveland in 2006.

He has served as Assistant Clinical Professor of Surgery at Case Western Reserve University School of Medicine 2009-2016. He has served on the board of the Juvenile Diabetes Research Foundation. He has a special interest in arterial venous fistula creation and Carotid artery occlusive disease, as well as Type I diabetes and renal insufficiency.

Start to Contact with Us

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RxEOB is a health information technology firm that for 20 years has been helping health plans and PBMs engage their members to optimize the clinical and financial effectiveness of their programs through intelligent communications.

Contact Us


+1 804-643-1540

Email address:



2810 N Parham Rd, Suite 245

Richmond, VA, 23294