<PAGE>
                                                                    EXHIBIT 99.1


FOR IMMEDIATE RELEASE:                          Media Contact:
                                                --------------
                                                Mollie Elizabeth Condra
                                                HealthStream
                                                (615)-301-3237
                                                mollie.condra@healthstream.com


                HEALTHSTREAM REVIEWS STATUS OF AGREEMENT WITH HCA

NASHVILLE, TENNESSEE (SEPTEMBER 30, 2005) - HealthStream (NASDAQ: HSTM), a
leading provider of learning solutions for the healthcare industry, announced
today that its agreement with HCA Information Technology & Services, Inc., a
subsidiary of HCA, Inc. (NYSE: HCA) has automatically renewed for one year
following the expiration of the initial four-year term in accordance with terms
of the agreement. The automatic renewal provision specifies that either party
may terminate the agreement upon 45-days notice to the other party. Under the
agreement, HealthStream provides learning services to HCA. HealthStream and HCA
are continuing their discussions regarding a revised longer-term agreement.


ABOUT HEALTHSTREAM
HealthStream (NASDAQ: HSTM) is a leading provider of learning solutions for the
healthcare industry. Approximately 1.2 million healthcare professionals are
currently contracted to learn on the Internet-based HealthStream Learning
Center(TM), HealthStream's learning platform. The Company's learning products
and services are used by healthcare organizations to meet the full range of
their training needs, while concurrently supporting business objectives. Once
subscribed to the Healthcare Learning Center(TM), customers benefit from
increased compliance, reduced risks, and improved learning effectiveness. In
addition, HealthStream has pioneered a new collaboration with leading
pharmaceutical and medical device companies to assist them in product launch and
market education initiatives within the Company's nationwide network of hospital
customers. (www.healthstream.com)


This press release contains forward-looking statements that involve risks and
uncertainties regarding HealthStream. Investors are cautioned that such results
or events predicted in these statements may differ materially from actual future
events or results. This information has been, or in the future may be, included
in reliance on the "safe harbor" provisions of the Private Securities Litigation
Reform Act of 1995. These forward looking statements are subject to certain
risks and uncertainties, including the risk that the Company can give no
assurances that it will be able to reach agreement on the terms of a revised
longer-term agreement with HCA or that the existing agreement will not be
terminated prior to the expiration of the one-year renewal period and other
risks referenced from time to time in the Company's filings with the Securities
and Exchange Commission. Consequently, such forward-looking information should
not be regarded as a representation or warranty by the Company that such
projections will be realized.

                                      ####


