Healthcare compliance should be provable on paper before anyone asks. Andrew Jonathan Hillman is a healthcare compliance expert witness and senior paralegal based in Dallas, Texas. His operating years are closed: three decades running FDA regulated businesses, starting with Hillman Ventures, founded in 1995. His expert practice is open, retained through counsel on FDA biologics pathways (Section 351(a) versus 361 HCT/P), Medicare overpayment rules and federal enforcement patterns. He will not offer legal conclusions or opinions outside his field, and he is not an attorney. He writes The Hillman Letter on Substack and hosts The Hillman Letter Podcast on Spotify and Apple Podcasts.