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Who We Are

A Leader in GPU-Accelerated Complex Algorithm Implementation

Technology that Raises the Standard of Care

Voximetry is a Healthtech software company committed to advancing dosimetry-guided Radiopharmaceutical Therapy (DG-RPT). With Torch™, we aim to improve patient outcomes by moving beyond population based models and making it simpler for clinicians to develop patient-specific RPT treatment options.

Executive Leadership

Sue Wallace, PhD

Chief Executive Officer
Board Director

Sue has over 30 years managing medical device businesses in the fields of nuclear medicine and radiation oncology, including high profile executive roles at GE, Cardinal Health, Philips, and Accuray. She holds a Doctorate in radiopharmaceutical chemistry and is a Six Sigma Master Black Belt.

Joseph Grudzinski, PhD

Chief Innovation Officer
Board Director

Joe has over 15 years of experience developing radiopharmaceuticals at multiple drug companies and radiation dosimetry algorithms at Philips Radiation Oncology Systems. Joe remains active as Senior Scientist in the Department of Radiology at the University of Wisconsin-Madison.

Abhi Chakrabarti, PhD

Chief Operating Officer

Abhi has over 25 years driving Healthtech software product design and commercial growth of treatment planning applications, including executive roles at Philips Healthcare and Elekta. He holds a Doctorate in Electrical & Electronic Engineering and a PhD in Numerical Modelling of Semiconductors.

Paul Wickre

Chief Technology Officer
Board Director

Paul has over 20 years commercializing software including radiation treatment planning and quality assurance at Philips Radiation Oncology Systems and Standard Imaging. Mr. Wickre has been developing radiation treatment planning software for the past 13 years under strict FDA regulatory guidelines.


Bryan Bednarz, PhD

Chief Science Officer
Board Director

Bryan has over 15 years of experience in radiation transport methods, dosimetry and medical device development. Bryan is a tenured Associate Professor in the Department of Medical Physics at the University of Wisconsin-Madison.

Gregg Daversa

Vice President Professional Services Operations

Gregg has over 35 years of clinical, operational, compliance, project management, and sales leadership experience in imaging and medical physics radiology. He completed his education in medical imaging at Albany Medical Center and maintains certifications through ARRT in radiography, CT & MRI.

Andreas Schulte

International Business  Development 

Andreas has extensive experience in global business development including driving significant commercial growth in radiation oncology. Today he is specializing in market entry strategies supporting radiation oncology start-ups and clinical operators.

Jill Kaeder

Vice President
Regulatory & Quality

Jill has worked in medical device regulated global environments for over 25 years, including Software as a Medical Device and radiation therapy treatment planning systems. Jill excels in the creation and implementation of compliant QMS systems and has extensive experience in global regulatory management.


Andy Fuller

Product Leader

Andy has over 30 years managing Healthtech software and device product development from strategy to realization. His global experience with both Fortune 50 and start-ups includes deep domain expertise in radiation dosimetry and treatment planning. He is a Certified Product Owner in Agile with an advanced degree in electronics.

Key Advisor

Dr. Richard L Wahl

Chair of Scientific & Clinical Advisory Board

Dr. Wahl was among the first to precisely target internal radiation therapy to cancers. He has a successful track record of innovation from the pre-clinical stage to the clinical environment. His significant translational success includes 20 patents, 2 FDA approved cancer treatments and at least 3 FDA approved devices. Dr. Wahl is Director of the Mallinckrodt Institute of Radiology at Washington University School of Medicine, Head of the Department of Radiology, and a Professor of Radiation Oncology.


Torch® Dose Assessment Software to be Available for Siemens syngo.via Customers
Voximetry Partners with Flywheel to Assure Confidence in Data Management, Security and Privacy for Clinical Dosimetry Services
Voximetry Introduces Professional Dosimetry Services for the Clinic, a Paradigm Shift in Nuclear Medicine.
Voximetry Positions for Growth in Dosimetry Services for the Clinic with Appointment of VP to Lead Professional Services.