membership
Voting in the 2026 AAMD Election is open! All Full CMD Members were sent an email invitation on March 9 with their ballot and voting instructions. The email was sent from AAMD (via invitations@mail.electionbuddy.com) with the subject line: Vote Now: AAMD - 2026 Election. Please check your inbox (and spam) to participate in the online election. The election will remain open through March 27 at 11:59 PM ET.
If you did not receive your ballot email, please contact the AAMD Director of Membership, Whitney O'Donnell at wodonnell@medicaldosimetry.org.
The positions up for election in 2026 are:
Only members who reside in Region IV will vote for their Region Representative. To help prepare for the election, get to know the candidates by reading their biographies below.
Michelle Mundis Myers, MS, CMD, is the lead dosimetrist at Arkansas Proton Center. She earned her MS in Medical Physics from Georgia Institute of Technology and furthered her education by graduating from University of Maryland’s Dosimetry Program. Michelle has over a decade of diverse experience in radiation oncology, having filled roles as a Field Service Engineer and Medical Physics Assistant, prior to completing her CMD. She currently serves as Secretary of the Board for the American Association of Medical Dosimetrists (AAMD).
Michelle has a strong passion for educating others, having previously been a Clinical Coordinator and having served a two-year term as Co-Chair on the AAMD Formal Education Committee. She has presented at various AAMD meetings as well as at the Society for Radiation Oncology Administrators' annual meeting and later this year at the National Association of Proton Therapy conference, highlighting to sister societies the value of a dosimetrist and the importance of dosimetry education. Michelle promotes and highlights AAMD member benefits, serving several years on the Membership Engagement Committee. Michelle has also participated in updates of key documents, such as the Scope of Practice/Practice Standards and Curriculum Guidelines. She looks forward to continuing to serve the medical dosimetry profession.
With over 29 years of experience in the medical field, including radiation oncology, dosimetry and healthcare management and consulting, Adam Brown has previously served as President and Treasurer (his current role) for the AAMD. He also served as an AAMD Regional Representative and the Co-Chair for the AAMD Nominations and Volunteer Committee for many years. He has a strong clinical patient treatment background as a Radiation Therapist and a Dosimetrist, as well as a manager. In the consulting arena, he has experience coordinating and performing audits, training and leading billing and coding seminars. With a strong foundation in documentation and coding for both Part A and Part B reimbursement, Adam maintains a strong attention to detail and professionalism. His communication skills have proven beneficial for integrating training for physicians, clinical staff and business office personnel at both hospitals and free-standing cancer centers. In addition, he has experience leading customers to optimizing workflows, database merges, interoperability design and testing, and guidance on best practice standards. Adam has served as clinical lead for transformational projects that leverage advanced technology, combining clinical and technical expertise and deep knowledge of products while developing best practices for clinical operations that focus on patient outcomes and efficiencies in care.
Warren “Jason” Heilig, MS, CMD, RT(R)(T), has more than 20 years of experience in Radiation Oncology, beginning his career as a Radiation Therapist and later transitioning into Medical Dosimetry. He has spent nearly his entire professional career at Baptist Health in Paducah, Kentucky, working alongside physicians, physicists, therapists, and nursing staff to support patient care and team-based operations.
Working in a rural setting led Jason to focus on improving access to cancer treatment. He helped establish a charitable patient assistance fund designed to help patients overcome barriers to receiving treatment and served as its co-chair for 10 years. The fund continues to support patients more than 15 years later. He believes rural cancer programs benefit from strong professional representation and that rural healthcare perspectives deserve a clear voice in national conversations.
Jason also promotes recognition of the essential radiation oncology team and the role of the dosimetrist in safe, effective treatment delivery. He currently serves as Co-Chair of the AAMD Continuing Education Committee and is committed to practical education, collaboration, and steady professional service within the dosimetry community.
Trinh Nguyen graduated from the University of Oklahoma with a Master’s in Dosimetry in 2013 and has spent the past 13 years practicing as a Certified Medical Dosimetrist (CMD). She currently serves as the Photon Team Lead for Massachusetts General Hospital (MGH) and Cooley Dickinson Hospital. Prior to this role, she led the Photon Team at MGH for the Head and Neck, Gynecological, and Gastrointestinal services, where she supported complex treatment planning and coordinated clinical workflows. Trinh is committed to education and mentorship. She has trained and guided students from Suffolk University’s Medical Dosimetry program, as well as medical and physics residents from Harvard University. She has also mentored new and junior dosimetrists, helping them build confidence and clinical competency. As an advocate for her peers, Trinh contributed to establishing a hybrid work model— implemented even before the pandemic—and supported the adoption of a 10-hour, 4-day holiday work week to improve work-life balance. Beyond her clinical work, Trinh has actively contributed to the Medical Dosimetry profession through seven years of service with the AAMD Annual Conference Committee. She progressed through multiple leadership roles, ultimately serving as Senior Past Co-Chair, and helped curate educational conferences for more than 400 attendees each year.
Akhil Tiwari is a Dosimetrist III at Memorial Sloan Kettering Cancer Center with over a decade of experience in radiation therapy planning. He holds a Bachelor of Science in Medical Dosimetry from The University of Texas MD Anderson Cancer Center and has previously worked at leading cancer centers, including New York Presbyterian Hospital—affiliated with Cornell and Columbia—and the Hospital of the University of Pennsylvania. Akhil has a strong commitment to professional service, education, and advancement of the dosimetry field. He served on the MDCB for five years, including two years as secretary, contributing to exam development, certification standards, and maintenance of certification. He is currently serving as a Member at Large for the AAMD and would be honored to continue serving the membership with an additional term. In addition to his leadership roles, Akhil is a clinical preceptor for dosimetry students and is actively involved in research, with several publications in radiation therapy. At MSKCC, he also contributes to initiatives focused on improving patient access to timely, high-quality care.
Kyle started his career in radiation oncology as a radiation therapist in 2007. He graduated dosimetry school at Roswell Park in 2010 and has been working as a CMD since. He's worked for both ACR and APEX-accredited centers in Western New York and Northern California. Kyle has had the privilege of training new dosimetrists through JRCERT programs at Roswell Park and SIU. He is currently working as a staff dosimetrist at Roswell Park Comprehensive Cancer Center in Buffalo, NY. Kyle strongly believes in the mission statement of the AAMD, which focuses on patient care, safety, continuing education and advocacy. Kyle will strongly advocate for our profession while stressing the benefits and importance of membership with the AAMD.
Anthony Machuca is a Certified Medical Dosimetrist at the Mount Sinai Hospital in New York, where he contributes to both clinical excellence and professional development in the field. A graduate of Mount Sinai Center for Radiation Sciences Education at Stony Brook University’s Medical Dosimetry Program and a recipient of multiple academic awards.
Anthony is deeply committed to giving back, fostering collaboration, innovation, and education within the dosimetry community. Anthony brings a track record of engagement and leadership through his professional service on both the AAMD Student Subcommittee and the Career Services Committee. Within these roles he has aided in generating toolkits and resources to expand the reach of medical dosimetry. Clinically, he has led projects showcased at AAMD Annual Conferences, including research in 3D printing applications and educational tools for student training. Beyond these responsibilities, he organizes regional gatherings to bring together dosimetrists to help create a system of support for all in the profession. With a passion for connecting peers and uplifting member voices, Anthony is excited about the opportunity to serve as a Regional Representative. His experience in advocacy, his dedication to inclusive communication, and his ability to bridge the gap between students, professionals, and leadership make him well suited to represent and support his region with energy and purpose.
