Authentidate Announces eOrder Module For Inscrybe^TM Healthcare - American Homepatient First Customer To Use New Service Offering

Authentidate Expands its Presence in the Homecare Industry

BERKELEY HEIGHTS, N.J.
April 23, 2007

Authentidate Holding Corp. (Nasdaq: ADAT), a worldwide provider of secure enterprise workflow management applications, today announced the addition of the eOrder application to its current suite of modules available on the Inscrybe Healthcare platform. The introduction of the eOrder module and its adoption by American HomePatient reinforces Authentidate's vision for Inscrybe, of a highly scalable suite of integrated capabilities facilitating trusted transactions for the healthcare industry.

The Inscrybe eOrder module offers a robust array of benefits for homecare providers, including the ability to better service the referring physicians. With eOrder, physician offices can place orders with homecare providers and complete associated paperwork simply and securely using a web-based online order catalog. Physician offices that choose to place orders via phone or fax can receive order acknowledgments from the homecare provider either online or by fax according to their preference.

For the provider - whether an order is placed online, by fax or over the phone - Inscrybe's state-of-the-art workflow automation technology streamlines the entire order handling process to allow for centralized management on a single dashboard. This allows a provider to better respond to the needs of a referred patient at lower operating costs, by eliminating processing errors and inefficiencies related to paper-based processes. In addition, by integrating seamlessly with other Inscrybe modules providers can further reduce the total cycle time from order to reimbursement while enhancing compliance with regulatory procedures.

Doug Gouy, Senior Vice President of Revenue Management at American HomePatient stated, "We are delighted that Authentidate is bringing this important and much needed application to our market. Many of our major physician offices have been requesting an easier, faster, and more secure way to process medical orders. We believe the eOrder module will resolve a major front-office challenge for homecare companies. In addition, the eOrder module is fully integrated on the Inscrybe Platform, which has already helped our Company to reduce costs and improve productivity, and has allowed us to serve our customers better."

"We are very pleased with the success American HomePatient has experienced using Inscrybe eCMN, and look forward to expanding our relationship with them as they adopt our new eOrder module," stated Suren Pai, President and Chief Executive Officer of Authentidate. "We are delighted when our customers come back to us to help address an important business challenge. It validates the value of our applications to our customers, and helps us stay on the leading edge of market-driven innovation." He added, "We remain committed to positively impact our customers' bottom line, and to continue to bring to market innovative and practical solutions that help address their business needs."

For more information on Inscrybe Healthcare, call 1-877-467-2792 or visit http://www.inscrybe.com/.

About Authentidate Holding Corp.

Authentidate Holding Corp. is a worldwide provider of secure enterprise workflow management applications that incorporate its proprietary and patent pending content authentication technology in the form of the United States Postal Service® Electronic Postmark® and electronic signing solutions. Authentidate also provides secure document management solutions, and enterprise network security products and services.

The company operates its software and services businesses in three segments: the Security Software Solutions segment (including Authentidate, Inc., Trac Medical Solutions, Inc. and Authentidate International AG), the Document Management Solutions segment (Docstar Division) and the Systems Integration segment (DJS). For more information, visit the company's website at http://www.authentidate.com/.

About American HomePatient, Inc.

American HomePatient, Inc. is one of the nation's largest home health care providers with 250 centers in 34 states. Its product and service offerings include respiratory services, infusion therapy, parenteral and enteral nutrition, and medical equipment for patients in their home. American HomePatient, Inc.'s common stock is currently traded in the over-the-counter market or, on application by broker-dealers, in the NASD's Electronic Bulletin Board under the symbol AHOM or AHOM.OB.

For more information about American HomePatient, Inc. please see: http://ahom.com/.

This press release contains forward-looking statements within the meaning of section 27A of the Securities Act of 1933 and section 21E of the Securities Act of 1934. When used in this release, the words "believe," "anticipate," "think," "intend," "plan," "will be," "expect," and similar expressions identify such forward-looking statements. Such statements regarding future events and/or the future financial performance of the Company are subject to certain risks and uncertainties, which could cause actual events or the actual future results of the Company to differ materially from any forward-looking statement. Such risks and uncertainties include, among other things, the availability of any needed financing, the Company's ability to implement its business plan for various applications of its technologies, related decisions by the USPS, the impact of competition, the management of growth, and the other risks and uncertainties that may be detailed from time to time in the Company's reports filed with the Securities and Exchange Commission. In light of the significant risks and uncertainties inherent in the forward-looking statements included herein, the inclusion of such statements should not be regarded as a representation by the Company or any other person that the objectives and plans of the Company will be achieved.


Authentidate and Inscrybe are trademarks of Authentidate Holding Corp. in the United States and/or other countries. All other trade names are the property of their respective owners.