Partnership Combines Electronic Healthcare Transaction Processing With
   Electronic Prescribing Software, Adding Greater Speed and Accuracy to
                           Physicians' Practices

    PARSIPPANY, N.J., June 16 /PRNewswire/ -- MD On-Line, Inc., a leading
technology company focused on providing innovative products for electronic
healthcare transactions between providers and payers, has forged an
alliance with InstantDx, whose OnCallData(TM) electronic prescribing
software allows doctors to send and refill prescriptions in pharmacies
across the country. MD On-Line, Inc. will market, promote and sell this new
integrated service as a cost- and time-saving solution for medical
professionals and office administrators.
    According to Bill Bartzak, President and CEO of MD On-Line, "OnCallData
is a perfect complement to our core business, and represents another way
for us to help medical professionals operate their businesses more
efficiently and effectively." He added, "The tens of thousands of medical
professionals who today are using our core services already recognize the
cost and time benefits of the system, and we expect that they will quickly
see the added benefits of extending their electronic processes to include
prescription writing."
    InstantDx's OnCallData system allows doctors to electronically send
prescriptions and refills in seconds to over 72,000 pharmacies across the
country. OnCallData integrates seamlessly into most doctors' practice
management systems, enabling doctors to securely write electronic
prescriptions using personal computers, PDAs or other Internet-connected
devices. Before the patient even steps into the pharmacy, the OnCallData
software automatically checks insurance eligibility, formulary
restrictions, drug interactions and more.
    Dr. Allan Weinstein, Chairman and CEO of InstantDx, said, "Both MD
On-Line and InstantDx allow doctors and medical staff to do more of what
they do best -- care for patients." He added, "Activities that used to take
2-6 hours a day can now be accomplished in a fraction of that time, with a
higher degree of accuracy, security and instant approval. Not only is this
good for the doctor, it is of significant benefit to patients."
    This innovative partnership between these two privately-owned companies
advances America's trend toward electronic medical recordkeeping and offers
more online services for healthcare professionals and administrators. MD
On- Line and InstantDx will continue to be the leaders in developing
technologies that add greater efficiencies, safety and savings to patient
care.
    About MD On-Line, Inc
    Founded in 1995, MD On-Line, Inc. is a healthcare technology company
focused on "Transacting the Business of Healthcare". The company provides
solutions fostering connectivity between healthcare payers and providers to
facilitate transactions and reduce related costs. Privately-held, the
company processes in excess of two million electronic transactions per
month, and is the preferred solution provider for some of the largest
medical insurance companies in the country. With offices in New Jersey and
California, MD On- Line has been named to the Inc. 500 list of the fastest
growing companies in America, and has twice been included on the Deloitte &
Touche Fast 500 and New Jersey Technology Fast 50 list of companies. More
information is available at http://www.mdon-line.com
    About InstantDx, LLC
    InstantDx, LLC, located in Gaithersburg, MD., is a pioneer in
e-prescribing, launching the first true electronic connection to pharmacies
(Giant Pharmacies) and the first regional e-prescribing initiative (in
Rhode Island with Lifespan hospitals and physicians). InstantDx integrates
its product OnCallData into multiple physician practice management systems
(POMIS) and electronic medical records (EMRs), including Misys Healthcare,
Per-Se Technologies/NDCHealth's Medisoft, Lytec, and Concept, Companion
Technologies, and others (representing over 265,000 physicians in the
United States). For more information, go to http://www.InstantDx.com.