As a general rule, no, this is not allowable, for any employee (full-time, part-time, etc.). There are three exceptions where limited and tightly controlled participation may be approved, however, that involve an employee of a commercial interest serving in the role of a presenter. A provider must demonstrate intentionality in involving an industry employee (i.e. the reason the individual was chosen, given their conflict-of-interest), an the content s/he speaks on cannot be related to the products/services of his or her company. Effectively, content must be non-clinical, or about research so early in the discovery process there is no product yet developed.
More information can be found here.
