Small Business Health Information Technology Financing Act of 2009 - Amends the Small Business Act to authorize the Administrator of the Small Business Administration (SBA) to guarantee up to 90% of the amount of a loan, up to specified loan amounts, to a small business health professional to be used for the acquisition and installation of health information technology for the professional's medical practice. Defines the term "health information technology" to mean computer hardware, software, and related technology that supports the meaningful electronic health record use requirements of title XVIII (Medicare) of the Social Security Act and is purchased by an eligible professional to aid in the provision of health care, including electronic medical records, but excludes information technology whose sole use is financial management, maintenance of inventory of basic supplies, or appointment scheduling.