membership
Voting in the 2025 AAMD Election will open on March 10. All Full CMD Members will be sent an email invitation with their ballot and voting instructions. The election will remain open through March 21 at 11:59 PM ET.
The positions up for election in 2025 are:
Only members who reside in Region I and Region II will vote for their Region Representative. We encourage all voting members to read each candidate biography and personal statements, prior to casting votes. To help prepare for the election, get to know the candidates by reading their biographies below.
Linnae Campbell, MSHA, MS, CMD, RT(R)(T), has experience with photon, proton, and research dosimetry. Linnae serves as Member-At-Large on the AAMD Board of Directors and a member of ASTRO’s Multi-Disciplinary Quality Assurance Committee. Linnae has presented her work at various conferences including for the American Association of Medical Dosimetrists (AAMD), American Society of Radiologic Technologists (ASRT), and the National Association for Proton Therapy (NAPT). Linnae became a published author in the Medical Dosimetry Journal special proton issue. She works as a dosimetrist at Northwestern Medicine’s dosimetry department specializing in protons, combination photon/proton treatments, and assists as a safety coach. Read Linnae's Position Statements
Sandra John-Baptiste, is an Assistant Professor/Associate Program Director in the School of Health Professions at MD Anderson Cancer Center. As a board-certified medical dosimetrist and radiation therapist with over 20 years of experience, she is passionate about advancing education in her field. Triple-certified (MDCB, CAMRT, ARRT), Sandra actively contributes to professional societies like JRCERT, ASRT, and AAMD, including co-chair roles on Continuing Education and Directed Journal Reading committees. Her focus on developing a national APRT program emphasizes interprofessional collaboration, ensuring the vital role of medical dosimetrists in advanced treatment planning and delivery. Read Sandra's Position Statements
Dr. Mahsa Dehghanpour is the Professor and Program Director for the Medical Dosimetry Program at UT MD Anderson Cancer Center. With 20 years in the field, research, presentations, publications, and significant services to the AAMD and other organizations, she contributed to
the advancement of the profession. She served over a decade with JRCERT, starting as a site visitor and progressing into the board chair. Mahsa is passionate about technologies that enhance medical dosimetry education and patient care. In recognition of her contributions, she received the 2021 AAMD Outstanding Achievement Award and named MD Anderson's 2020 Faculty Educator of the Year. Read Mahsa's Position Statements
Warren Jason Heilig is a Certified Medical Dosimetrist employed by Baptist Health in Paducah, Kentucky. Jason graduated from Southern Illinois University with a bachelor’s degree in 2002 and began his career as a Radiation Therapist. In 2013, Jason took on the role of Dosimetrist and graduated from Southern Illinois University with a master’s degree in 2015. This April, Jason will celebrate 22 years of service at Baptist Health. During that time, Jason was a co-founder and co-chair of the YOURFIGHT fund, established to help cancer patients facing hardships that hinder their ability to complete treatment. Read Jason's Position Statements
Kevin has dedicated his career to the medical field, starting in radiology in 1987 and becoming known as “Chester Manestar” from doing 6am portables! After radiology, he transitioned into radiation therapy, then advanced to dosimetry. Now the Lead Medical Dosimetrist at Northside Hospital, Kevin is committed to improving patient outcomes. He actively participates in the AAMD Directed Journal Reading and the Radiation Safety Committees and is a preceptor for dosimetry students. Kevin has presented topics at several internal dosimetry meetings as well as at the AAMD annual meeting regarding APBI external beam treatment planning. Outside of work, he enjoys family, hiking, and musical pursuits. Kevin is passionate about advancing dosimetry and patient care. Read Kevin's Position Statements
Akhil Tiwari is a Dosimetrist III at Memorial Sloan Kettering Cancer Center with over a decade of experience. He holds a Bachelor of Science in Medical Dosimetry from The University of Texas MD Anderson Cancer Center. Prior to MSKCC, he worked at top cancer centers including New York Presbyterian Hospital, affiliated with Cornell and Columbia, and the Hospital of the University of Pennsylvania. Akhil values education and served on the MDCB board for five years, including as secretary. He is a clinical preceptor for dosimetry students and is active in research, authoring several publications on radiation therapy. At MSKCC, he is involved in projects and initiatives to improve patients' access to timely care. Read Akil's Position Statements
Jennifer Davis brings over 20 years of experience in radiation oncology, with roles spanning therapist, dosimetrist, sales, and technology implementation. Known for fostering collaboration and staying current with industry advancements, she combines clinical expertise with a passion for education and innovation. Her diverse background provides a comprehensive understanding of radiation oncology, enabling impactful contributions to patient care and professional development.” Read Jennifer's Position Statements
Sarah McKee is a Senior Medical Dosimetrist, employed by OHC/US Oncology for 24 years. In that time, she has gained experience working with Pinnacle, RayStation, and Monaco TPS, as well as Mosaiq, Mobius, MIM and C-RAD. Before obtaining her CMD credentials, she worked as a Radiation Therapist as well as a Radiologic Technologist. She also volunteers at her local church and community art center, as well as with the AAMD in several capacities. Read Sarah's Position Statements
Jibin Thomas is a highly skilled and compassionate Certified Medical Dosimetrist with over 17 years of experience. He currently serves as a Senior Medical Dosimetrist at Northwell Health in New York. Jibin graduated from Stony Brook University’s Medical Dosimetry program and holds a master’s degree in medical physics from Hofstra University. In addition to clinical practice, Jibin is committed to mentoring and training the next generation of medical dosimetrists. He regularly contributes to professional development within the field. Jibin is an active volunteer for AAMD and currently serves as the Senior Co-Chair of the Annual Conference Committee. Read Jibin's Position Statements
James Friedman, MS, CMD, is a seasoned medical dosimetrist with over 10 years of experience in the field. Currently working at Kaiser Permanente in South San Francisco specializing in stereotactic radiosurgery (SRS) and external beam radiation therapy (EBRT) treatment planning. He previously served as co-chair of the Communications Committee for the AAMD, contributing to the advancement of the field. Passionate about community involvement, James enjoys giving back whenever possible. Outside of work, James enjoys racing outrigger canoes in the ocean, combining his love for the sport with his appreciation for teamwork and discipline. Read James' Position Statements
Jamie Baker completed a BS in Medical Dosimetry from UT MD Anderson in 2004. She then joined MD Anderson as a clinical medical dosimetrist and proudly earned her CMD. After completing an MEd in education, she transitioned to the role of Medical Dosimetry educator and completed a PhD. She participates in several professional societies as an active member, holds leadership roles, including four terms as co-chair of the AAMD Formal Education Committee, and attends state and national meetings as a contributing speaker. In her personal life, she enjoys running, spending time with family, and searching for the perfect vegan cupcake. Read Jamie Baker's Position Statements
