Leaders in Life Science Technology.

We are a vibrant company guided by leadership with deep industry experience, passion, and vision.

Meet the team that is transforming cancer treatment by expanding the accessibility of proton therapy and developing proton tomography.

Stephen Spotts ProTom CEO

Stephen Spotts

President and Chief Executive Officer

Mr. Spotts has served as ProTom International’s president and CEO, and as a member of the company’s board of directors since ProTom was founded.

Mr. Spotts’ commitment to increasing access to proton therapy technology is personal. Like many families, his family has been affected by cancer. Mr. Spotts believes proton therapy should be available to all patients who would benefit from it.

Prior to ProTom, Mr. Spotts held several global leadership positions, including roles at Pathology Partners, Inc. (formerly Miraca Life Sciences, now Inform Diagnostics); Genoptix, Inc.; Hospital Services Group for Mariner Post-Acute Network; Marriott Healthcare Services; and Valley Management Services. From 2007 through 2012, Mr. Spotts also served as a trustee of the Southwestern Seminary Foundation.

In addition to his roles at ProTom, Mr. Spotts currently serves on the board of directors of Oxford Immunotec (Nasdaq: OXFD), an international medical diagnostics company with innovative T-cell measurement technology.

Mr. Spotts received a B.A. in Business Administration from the University of Mississippi.

James Bennett

Executive Vice President, Finance and Chief Financial Officer, and Treasurer

Mr. Bennett has served as ProTom International’s executive vice president, finance, and chief financial officer, and treasurer since the company was founded.

Mr. Bennett is an experienced healthcare executive with over 37 years of financial and operational experience. He has held leadership roles in both publicly and privately held health care institutions, including Fortune 500 and start-up companies.

Additionally, Mr. Bennett has invested in, founded, and served as a board member to a number of healthcare entities and real estate development firms.

From 1979 until 1987, Mr. Bennett was a practicing CPA in the audit division of Ernst & Young.

In this role, he advised individual hospitals, hospital chains, and other healthcare entities on financial, organizational, reimbursement and tax matters.

Cheryl Smith

Vice President, Administration and Corporate Secretary

Ms. Smith has served as ProTom International’s vice president, administration, and corporate secretary since the company was founded.

Ms. Smith brings to ProTom 40 years’ experience in the healthcare, legal and manufacturing industries for both public and private companies.

She has held leadership positions at Catalyst Rx, a pharmacy benefits manager and subsidiary of Catalyst Health Solutions, Inc. (Nasdaq: CHSI); Pathology Partners, Inc. (formerly Miraca Life Sciences, now Inform Diagnostics); SemperCare, Inc.; Amtech Corporation (now TransCore, a unit of Roper Industries (NYSE: ROP)); and Horizon Health Corporation (Nasdaq: HORC).

Early in her career, Ms. Smith worked as a paralegal for the firms of Hughes & Luce and Johnson & Swanson, P.C.

Ms. Smith holds a B.A. in Business from the University of North Texas and a B.A. in Paralegal Studies from Southern Methodist University. Ms. Smith received her M.A. in Economics from the University of North Texas.

Lauri Reichert

Vice President, Finance/Accounting and Controller

Ms. Reichert has served as ProTom International’s vice president, finance/accounting and controller since the company was founded.

Ms. Reichert has close to 20 years of experience in finance.

Prior to joining ProTom, Ms. Reichert was the director of corporate planning & analysis at Excel Communications, a $1 billion telecommunications organization.

Here she developed the Financial Analysis department, drove the strategic planning process throughout the company, and introduced a company-wide cost justification process, which was used to streamline offerings and reduce costs.

Before Excel, she assisted with the merger of PrimeCo and Verizon, and held positions at Associates First Capital (now Citigroup).

Ms. Reichert is a certified public accountant and holds both bachelor and masters degrees in accounting from the University of North Texas.

Louis A. Wainwright

Group Vice President, Engineering

Mr. Wainwright has over 15 years of leadership experience in the development of new products based on innovative technologies in the medical device, security, and semiconductor industries.

Before joining ProTom, Mr. Wainwright served as senior director of imaging systems at Triple Ring Technologies, overseeing the business and technical performance of products in dental CT, cerebral imaging, and X-ray source development.

Prior to Triple Ring, Mr. Wainwright created the Innovation Laboratory at American Science and Engineering (AS&E) and lead the development of imaging technologies for explosive detection, smuggling prevention, and other security needs. Additionally, Mr. Wainwright leads the development of capital equipment for semiconductor manufacturing at Axcelis Technologies. He started his career as a plasma physicist for BD Technologies, developing thin film coatings for medical devices, such as blood collection tubes and syringes.

Mr. Wainwright holds B.S. and M.S. degrees in Engineering Physics from RPI and the University of Wisconsin-Madison, and an MBA from Babson University.

W. Davis Lee, Ph.D.

Vice President, Technology

Dr. W. Davis Lee joined ProTom International in 2016. In January 2017, Dr. Lee was named ProTom’s vice president, technology.

Dr. Lee has more than 20 years of experience conceptualizing innovative technologies and bringing them to market. Through his research and his leadership, he has transformed companies.

Prior to ProTom, Dr. Lee developed, built, and improved ion production and acceleration equipment, with tenures at both Applied Materials and Axcelis, makers of semiconductor ion implantation equipment. Before his work in the semiconductor industry, Dr. Lee worked on a large-scale plasma device for the separation and remediation of nuclear waste.

Dr. Lee is a senior member of IEEE, an author of over 100 patents and patent applications, and has authored more than 12 papers.

Dr. Lee holds a B.S. in both Physics and Mathematics from the University of Mary Washington, an M.S. in Applied Mathematics from Johns Hopkins, and a Ph.D. in Nuclear Science and Engineering from M.I.T.

Robert Herron

Robert Herron

Vice President, Informational Technology

Mr. Herron heads ProTom’s Information Technology department and leads the internal IT infrastructure and the IT infrastructure for Radiance 330. His innovative approach has placed ProTom in the enviable position of being able to rapidly provision all required systems and services to operate the Radiance 330.

At ProTom, Mr. Herron is also responsible for the company’s cybersecurity initiatives.

Mr. Herron has almost 30 years’ experience leading IT operations across multiple industries, including medical, education, and insurance.

Prior to ProTom, Mr. Herron worked at Pathology Partners, Inc. (formerly Miraca Life Sciences, now Inform Diagnostics) as vice president of information technology. Under his direction, IT was able to scale and provide services to internal and external clients during a four-year company expansion.

Susan Michaud, RT(T)

Vice President, Clinical Integration

Ms. Michaud is a nationally certified and registered radiation therapist with over 28 years’ experience in the radiation therapy field, including 25 years’ experience in proton therapy research, development, and clinical treatment delivery. Her areas of expertise include: proton equipment design, human factors analysis, hazard analysis documentation, proton therapy training, proton sales and clinical customer communications, proton business modeling, proton software interface design, integration of ancillary clinical equipment, proton facility design, outpatient / radiation oncology / particle radiation treatment center operations, and clinical radiation therapy treatment delivery to thousands of patients.

Prior to joining ProTom, Ms. Michaud worked with Lahey Clinic, Massachusetts General Hospital, ProCure Treatment Centers, Inc., and multiple private consulting contracts.

Ms. Michaud is the inventor and/or co-inventor on multiple proton-related patents.

Ms. Michaud obtained an A.S. in Radiation Therapy at Massachusetts College of Pharmacy & Allied Health / Harvard Joint Center for Radiation Therapy, and received a B.S. in Business Administration from Emmanuel College.

Daniel J. Raymond

Vice President, Engineering

Mr. Raymond became ProTom International’s vice president of engineering in 2015.

Mr. Raymond brings to ProTom extensive product knowledge, having worked on the engineering implementation and installation of two proton therapy systems, including one at Massachusetts General Hospital. He also brings with him 30 years of experience in capital equipment product development, large-scale control, and safety integration/automation projects, and project management for a number of industries.

He is the co-inventor of five pending patents for ProTom.

Mr. Raymond holds a B.S in Electrical Engineering from the University of Massachusetts – Lowell and an M.S. in Engineering Management from Tufts University.

Mark Amato

Vice President of Systems Engineering and Software

Mr. Amato has over ten years’ experience with particle accelerators, control systems, and high-speed, ultra-high reliability robotics. His hardware and software design, systems integration, verification and validation, and product ownership spearheaded the development, sales, and installation of over five hundred industrial particle accelerators in semiconductor production facilities across the world.
Mr. Amato’s attention to detail, customer focus, and understanding of product parameters drove a fifty-fold improvement in the reliability of a military robot, leading to its adoption within the U.S. Army Rapid Equipping Force, where it is currently being evaluated as a Product of Record (POR). He possesses a broad skill set of control systems, robotics, hardware/software/firmware development, high voltage/high power, systems integration, and product marketing.

Past employers include Applied Materials, CyPhy Works, Varian Semiconductor Equipment Associates, and Raytheon Integrated Defense Systems.

He obtained a Master of Engineering in Systems Engineering with a concentration in Engineering Management, and B.S. in Electrical and Computer Engineering from Cornell University.

Mike Fascetti

Director of Technical Project Management

Mr. Fascetti joined ProTom International in 2016 as the director of technical project management.

With over two decades as a project manager for high technology companies, Mr. Fascetti specializes in the integration of complex electromechanical equipment. He has led projects in the healthcare, energy storage, security, and semiconductor industries, with responsibilities including scope, schedule, and budget.

Before joining ProTom, Mr. Fascetti was the director of program management at Premium Power Corporation. Prior to that role, he held program management roles at both American Science & Engineering and Axcelis Technologies.

Mr. Fascetti holds a B.S. in Mechanical Engineering from Carnegie Mellon University, an M.S. in Applied Mechanics from the University of California – San Diego, and an M.S. in Manufacturing Systems Engineering from Stanford University. Mr. Fascetti is also a certified program management professional as recognized by the Project Management Institute.

John C. Elstad

Director and Corporate Counsel

Mr. Elstad has spent 15 years as a litigator in both Boston and New York. Prior to joining ProTom, Mr. Elstad worked at Verrill Dana, Murphy & King, and Brown Rudnick, gaining a broad range of experience from contracts and finance through corporate governance to multi-billion dollar fraudulent transfer actions. Through this work, Mr. Elstad successfully guided clients through challenging and diverse legal issues.

Before Mr. Elstad entered law, he was a director at the Ontario Ministry of the Environment.

One Saturday each month, Mr. Elstad runs a soup kitchen in Chelsea, Massachusetts.

Mr. Elstad holds multiple degrees — in law, engineering, and science. Mr. Elstad obtained a B.A. in Neurobiology from McGill University and an M.A.Sc. in Environmental Engineering from the University of Toronto. He earned his law degree at the University of Mississippi in 2002 (graduating first in class). He is a member of the American Bar Association and the Boston Bar Association.

Bret Goldberg

Director of Human Resources

Mr. Goldberg joined ProTom International in 2016 as director of human resources.

Mr. Goldberg has more than 20 years of human resources experience, primarily in the financial services and hospitality industries, for both public and private companies. Prior to joining ProTom, Mr. Goldberg worked for dynamic companies such as T.J. Maxx, Fidelity Investments, Citizen’s Bank, Dunkin Brands, Commonwealth Financial Network, Sonesta Hotels, and Eaton Vance. He was primarily an HR business partner, focused on staffing, performance management, employee relations, compensation, and culture. In addition, he has hired, managed and mentored various HR professionals.

Mr. Goldberg is a member of several HR groups, including NEHRA, SHRM, and AOEP, and is active in the community supporting the American Cancer Society, Crohn’s & Colitis Foundation, and Big Brother Big Sister.

Mr. Goldberg holds a B.S. in Business Administration from State University of New York at Buffalo.

Dan Potenza

Dan Potenza

Director of Service Engineering

Mr. Potenza joined ProTom in 2015 as the first member of the Service and Maintenance Team. He staffed the team with experienced personnel and implemented a comprehensive safety program. Dan led the team in support of the assembly and testing at MIT Bates Lab and the subsequent Massachusetts General Hospital installation.

Dan has over 35 years of experience in manufacturing operations, service and maintenance, with 25 years at Intel as a lithography equipment specialist. He supported numerous installation cycles, large-scale site construction and facility decommissioning. Dan gained extensive experience in emergency response leadership, safety management lean manufacturing and team supervision.

Dan is a graduate of both the US Naval Nuclear Power Program and Electronics Technician School. He served in the submarine force as a reactor operator and achieved certification as an engineering watch supervisor after extensive electrical and mechanical system training.