SCHENECTADY, NY
March 25, 2004

Trac Medical Solutions, Inc. (TracMed), a subsidiary of Authentidate Holding Corp. (Nasdaq: ADAT), today announced that it has released its new electronic Home Health Care Form 485 (e-485) (Home Health Certification and Plan of Care) for beta testing on its CareCert™ electronic forms processing platform. The form is required for reimbursement by Medicare for patients requiring home nursing care.

The Form 485 is similar to a Certificate of Medical Necessity (CMN), for which TracMed has previously developed an e-CMN and electronic Written Order Solution, in that service providers must have a completed form signed by the prescribing physician in order to meet Medicare billing requirements. A recent Health Care Industry Update by the Centers for Medicare and Medicaid Services (CMS) estimates that the home health agency sector (HHA) accounts for approximately $30 billion in spending by more than 7,000 HHA locations. The Company estimates that more than 4 million people require home health care nursing services, with many requiring multiple Form 485's and Change Orders throughout their treatment.

TracMed believes that an e-485 will provide substantial costs savings as well as improved operating and billing efficiencies for the companies within the sector. TracMed intends to charge similar per transaction fees for the e-485 solution as it does for its e-CMN solution.

TracMed also announced that Advanced Home Care of High Point, NC, has begun processing Certificates of Medical Necessity and Written Orders electronically using the TracMed CareCert™ solution and that Advanced Home Care will be one of the initial beta testers of its new e-485 solution. Advanced Home Care processes approximately 54,000 CMN's and Written Orders each year.

"We are very excited not only to be one of the early adopters of e-CMN's but to also get the opportunity to assist in the development of and be the first user of the e-485," stated Joel Mills, President of Advanced Home Care. "This is a technology that has been long overdue and will improve the billing and collections process of the entire industry."

"As a leader within the industry, we are honored to have Advanced Home Care as a beta site for our e-485 solution as well as having them use the CareCert solution to process their CMN's and Written Orders," said Authentidate Chairman and CEO, John Botti. "Advanced Home Care is a well respected organization and we look forward to working with them with these solutions and future solutions that might be developed."

About Authentidate Holding Corp.

Authentidate Holding Corp. (AHC) is the holding company of five business units; DocStar, Authentidate International AG, Authentidate, Inc., DJS Marketing Group/Computer Professionals International and Trac Medical Solutions, Inc. DocStar sells proprietary document imaging software that includes the Authentidate technology. Authentidate and Authentidate AG provide the authentication of digital data through its proprietary and patent pending technology. Authentidate intends to establish itself as the authority on "content security" as it is a growing sector of the electronic network security infrastructure market. DJS delivers professional services centered around technology systems integration projects, staff augmentation, out-tasking, outsourcing services and resells computer related products. Trac Medical uses the Authentidate service in the medical supply business.

About Advanced Home Care

Advanced Home Care is a full-service, alternate site health care facility that is owned by The Moses Cone Health System, High Point Regional Health System, Novant Health (Presbyterian Healthcare, Forsyth Medical Center, Thomasville Medical Center), Mission St. Joseph's Health System, Thoms Rehabilitation Hospital, Haywood Regional Medical Center and WestCare Health System and University Health Systems of Eastern Carolina. Advanced Home Care has branch locations in Greensboro, High Point, Winston-Salem, Charlotte, Asheville, Sylva, Greenville, Rockingham and Pinehurst. Advanced Home Care is one of the largest Medicare/Medicaid certified home care organizations in North Carolina and offers a full spectrum of services.

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, 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.