Local. Trusted. Affordable.
Medical Physics Consulting Since 1990.
Who We Are
Radiological Physics Associates (RPA) began in 1990 when three physicists set out to give hospitals and clinics in Tennessee a local, dependable alternative for medical physics consulting. Their vision was simple: to deliver advanced regulatory expertise that meets NRC, Joint Commission, and ACR requirements in a way that's easy to understand and genuinely cost-effective. With decades of commitment to local service and lasting relationships, that same approach continues to guide all we do.
Our Mission
At RPA, our mission is simple: to be the partner you can count on for radiation safety and compliance. We’re proud to remain local, physicist-owned, and focused solely on consulting — with no competing interests, just straightforward and affordable expertise you can trust.
Where We’re Going
Our vision is to keep earning your trust, time after time. We’re committed to growing in ways that help you most — whether that’s more precise guidance, stronger support, or ensuring you’re always ready for evolving regulations.
Meet Our Team
Get to know the people behind RPA. Our team brings deep expertise, local commitment, and a dedication to providing clear and honest consulting that helps you stay confidently compliant. We include highly qualified and certified professionals dedicated to your success.
Alexander (Alex) Woods, PhD
Modalities: CT, Mammography, Medical Imaging, RSOA, Ultrasound, Shielding, Dental, Educational, Industrial
Alex Woods, PhD, is a physicist and co-owner at RPA with decades of consulting experience. Alex is known for his broad expertise across multiple modalities and his ability to keep clients confidently compliant.
Amy Ford, BS
Modalities: Medical Imaging, Nuclear Medicine, PET, RSOA, Dental, Educational, Industrial
Amy Ford, BS, is RPA’s Operations Manager and a Consulting Physicist. With 10 years of experience as a state inspector, she leads RPA’s RSOA program and provides trusted regulatory guidance.
Andrew Lysik, BS, CNMT
Modalities: Medical Imaging, Nuclear Medicine, PET, RSO, Dental, Educational, Industrial
Andrew Lysik, BS, CNMT, is a physicist at RPA with experience ranging from Army combat medic to RSO. He has contributed to major projects, such as the development of intraoperative MRI, and today focuses on advancing medical imaging and patient safety.
Brock Lambert, BS, CNMT, Managing Partner
Modalities: Medical Imaging, Nuclear Medicine, PET, RSO, Dental, Industrial
Brock Lambert, BS, CNMT, is RPA’s Managing Partner and a Consulting Physicist with more than 20 years of experience. He leads RPA’s Nuclear Medicine and RSO programs and is known for making complex regulations easy for clients to understand.
James (Jim) Stoner, RT
Modalities: CT, Medical Imaging, MRI, Dental, Educational, Industrial
Jim Stoner, RT, is a Consulting Physicist, RPA owner, and Registered Inspector with more than 20 years of experience. He is recognized for helping clients achieve CT and MRI accreditation, as well as for providing prompt and personal service.
Sara Lin, MS
Modalities: CT, Mammography, Medical Imaging, MRI, Shielding, Ultrasound, Dental, Educational, Industrial
Sara Lin, MS, is a physicist at RPA with expertise in MR imaging, shielding, and women’s imaging. She is completing her ABR certification in 2026 and is known for her curiosity, creativity, and technical insight.
April Miles
Senior Physics Services Coordinator
April Miles is RPA’s Senior Physics Services Coordinator with more than 20 years of experience. She’s the liaison who ensures clients have everything they need—while also being a dedicated hockey mom and frequent traveler.
Nycole Meneese
Client Service and Billing Specialist
Nycole Meneese is RPA’s Client Service and Billing Specialist. She is focused on ensuring clients receive accurate and timely invoicing, reports and scheduling for new services. Nycole enjoys spending time with family and volunteering on weekends with youth groups.
Carrie Gasser, BS, CNMT
Modalities: Nuclear Medicine
Carrie Gasser, BS, CNMT, is a physicist at RPA with over 20 years of experience in Nuclear Medicine. She supports clients with testing, shielding, and compliance services.
Joel Fern, MS, DABR, Medical Physicist
Modalities: Mammography, Medical Imaging, Ultrasound, Industrial
Joel Fern, MS, is an ABR Board Certified Medical Physicist specializing in mammography and ultrasound. He helps clients stay inspection-ready and is known for his clear, supportive guidance.
Joseph (Richard) Boone, MS, DABR, Medical Physicist
Modalities: RSO
Joseph “Richard” Boone, MS, DABR, is a Medical Physicist with more than 35 years of experience in Radiation Therapy and RSO services. Known as Coach Boone, he’s also a longtime youth soccer and rugby coach in Tennessee.
Cynthia Goodman Mumma, MS, DABR, MRSE, Senior Diagnostic Medical Physicist
Modalities: CT, Mammography, Medical Imaging, MRI, MRSE, Nuclear Medicine, PET, RSO, Shielding, Ultrasound
Cynthia Goodman Mumma is an ABR Board Certified Diagnostic Medical Physicist and MRSE with deep experience supporting clinical teams at all levels and across multiple modalities with decision-making and compliance expertise.
Kinjal Patel, MHP, Physicist
Modalities: Medical Imaging, Nuclear Medicine, PET
Kinjal Patel, is a physicist who supports PET systems and nuclear medicine program compliance, as well as medical imaging compliance. She leans into her curiosity and experience to provide calm, steady service to a wide range of clients.
What Drives Us
At RPA, our values aren’t just words on a page—they guide every decision we make and define how we serve you as trusted radiation physics consultants.
Client Focus
Your success is our mission. We put collaboration and clear communication first, helping you navigate complex radiation safety and accreditation challenges with confidence.
Accessible Experts, Specialized Focus
Medical physics consulting isn’t one of many things we do—it’s the only thing we do. With no competing interests like equipment sales or add-on services, you get direct access to physicists who deliver clear, specialized guidance every time.
Relationships That Last
We believe the best work comes from genuine, long-term partnerships. With our low turnover and a local presence, you’ll see familiar faces who know your facility, your team, and your goals. That consistency builds trust—and makes us a true ally as requirements evolve.
Flexibility That Works for You
Regulations change. Accreditation standards shift. Organizations grow. We help you adapt quickly, maintaining quality and compliance while minimizing unnecessary stress.
Why We Love What We Do
At RPA, we’re passionate about turning complex compliance into clear, practical solutions your team can use every day.
We don’t just show up for inspections — we maintain ongoing dialogue with you, guiding you through evolving regulations, accreditation standards, and radiation safety practices. That means you can focus on patient care, knowing compliance is handled with confidence.
Experience the RPA Difference
Choosing RPA means choosing a long-term relationship with physicists who put your success first. We’re committed to affordable, transparent partnerships — and as a physicist-owned business, we answer only to you, not competing interests.
Medical physics consulting isn’t a sideline for us—it’s our sole focus. And because we’re local, you get consistent service from experts who know your facility, your community, and your needs.
Frequently Asked Questions
1. What makes RPA different from other medical physics consulting groups?
RPA is one of the only medical physics consulting groups in the Southeast that is physicist-owned and operated. We don’t sell equipment or services beyond consulting—our focus is on providing clear, affordable expertise in compliance, accreditation, and radiological physics testing.
2. What types of medical physics services do you provide?
We provide a full spectrum of medical physics services, including compliance testing across imaging modalities (CT, MRI, PET, Ultrasound, Mammography, Medical Imaging, and Nuclear Medicine), medical radiation shielding plans, Radiation Safety Officer (RSO/RSOA) support, MRSE support, and consulting on accreditation and regulatory requirements.
3. Do you only work with large hospitals, or can smaller practices benefit too?
Both! We serve medical facilities of all sizes within a five-hour radius of Nashville. From small dental clinics to major hospital systems, our team of radiation physics consultants tailors services to meet your needs, making compliance easier and more practical for any facility size.
4. How do RPA physicists support accreditation and compliance?
Our physicists guide clients through complex requirements set by the ACR, The Joint Commission, FDA, and state regulators. By providing expert medical physics services, we help you prepare for inspections, maintain accreditation, and stay compliant with evolving standards.
5. What is radiological physics, and why does it matter to my practice?
Radiological physics is the science of using physics principles to ensure the safe and effective use of radiation in medicine. It’s the foundation of everything we do—protecting patients, staff, and facilities while ensuring diagnostic imaging delivers high-quality results.
6. Do you provide radiation shielding plans?
Yes. Our team provides medical radiation shielding solutions for new facilities, renovations, and equipment upgrades. Proper shielding is critical for protecting staff and patients, and we ensure the plans for your facility meet or exceed regulatory requirements.
7. Why should I choose a local medical physics consultant instead of a national company?
Working with a local team means consistency. You’ll see familiar faces who are familiar with your facility and its needs. As one of the only medical physics consulting groups dedicated to serving the Southeast, RPA offers personalized service and ongoing relationships—something national providers often cannot match.