Mark J Williamson DDS PLLC's EIN is 83-3081340.
Download the official 2025 Form 5500 (PDF) for Mark J Williamson DDS PLLC from the U.S. Department of Labor's EFAST2 system.
Download the official 2025 Form 5500 (PDF)Mark J Williamson DDS PLLC's plan includes profit-sharing, a 401(k) feature.