Leadership Team

The ONRAD team of radiologists, operations and management work together to provide the highest quality patient outcomes by applying their unique expertise, sophisticated technology and the organization’s values.

Our Leadership Team

We’re lucky to have a leadership team comprised of exceptionally skilled individuals. Our people bring several decades of healthcare experience in radiology, medical practices, technology solutions, and business administration to the table, and are actively finding new ways to evolve our organization’s services and provide even more value to our customers. Each are recognized leaders in the healthcare community and utilize their talents every day to drive innovation in the industry.

Dave Engert, ONRAD CEO

Dave Engert


Provides strategic leadership and oversees all organizational operations 

Over 25 Years of broad healthcare industry experience with an outstanding track record in leading and transforming healthcare IT and teleradiology companies including Nighthawk Radiology Holdings, Inc., McKesson, HBOC and Quality Care Solutions Inc. (QCSI).

Dr. Alix Vincent, ONRAD CMO

Alix Vincent, M.D.

Chief Medical Officer

  • A co-founder of ONRAD
  • A recognized CAQ certified expert with 28 years of experience interpreting Neuroradiology subspecialty exams
  • Responsible for Clinical Leadership to the Medical Director Board
  • Oversees physician staff and quality assurance programs to maintain a high standard of clinical care within our organization.

Jay Hebert, ONRAD CFO

Jay Hebert


  • Responsible for finance, accounting and revenue cycle management 
  • Over 10 years of experience in the Onsite Practice Management and Teleradiology industries including financial leadership roles with Nighthawk Radiology, Imaging Advantage and most recently Envision Physician Services.  


Samuel Salen, MD

QA Chairman

  • A co-founder of ONRAD
  • Over 35 years of experience in the industry
  • QA Chairman responsible for quality patient outcomes and administering peer review programs
  • A recognized leader amongst radiology groups at large tertiary care facilities and rural facilities.

ONRAD Medical Director Dr. Atul Patel, MD Teleradiology Radiologist

Atul Patel, MD

Regional Medical Director

  • Ensures excellence in patient care in the role of Medical Director or Supervising Physician to facilities we serve
  • Fellowship trained in Body Imaging and is an integral part of our mammography program
  • Over 19 years of experience in the industry

Farid Shafaie, M.D.

Farid Shafaie, MD

Regional Medical Director

  • Well known in the industry for his clinical excellence in diagnostic, musculoskeletal radiology and neuroradiology
  • Strong business acumen allows him to collaborate with hospital administration to introduce radiology solutions to the communities he serves
  • Over 22 years of experience in the industry

Robb Vaules, ONRAD Director of Sales

Robb Vaules

VP of Sales

  • Over 16 years of teleradiology sales, marketing & operations experience with some of the leading companies including vRad & NightHawk 
  • Began in advertising account and IT management in the internet and new technology projects for several major national advertisers
  • Robb can be reached at 951-476-3060 or rvaules@onradinc.com

Lisa Maulit, ONRAD, Director of Marketing

Lisa Maulit

Director of Marketing

  • Responsible for ensuring effective, branded marketing communications including the company website, print communications, trade show activities and advertising.
  • Over 16 years of business-to-business advertising experience with a focus on media planning, buying and performance tracking.  Worked with a variety of sectors including Healthcare, Technology and Telecommunications.

Jerry Lee, ONRAD Vice President of Analytics

Jerry Lee

VP of IT & Analytics

  • Responsible for all IT functions and development of our internal workflow systems.
  • Leverages Technology and Business Intelligence to streamline and improve business processes.
  • Extensive knowledge in Business Intelligence, Data Analytics, Reports Development, Database Modeling & Design, and Operations Management.

Jessica Jimenez, ONRAD Director of Operations

Jessica Jimenez

Director of Operations

  • Responsible for the direction and coordination of the Operations Department. She has been optimizing operational performance between our customers and physicians as well as our reading performance since the beginning of ONRAD.
  • Extremely organized with a keen attention to detail and the flexibility to work with all aspects of our business including Operations, Credentialing, Physician Relations, HIPAA Compliance and 24/7/365 Customer support.

Heather Pineda, ONRAD Director of Medical Staff Services

Heather Pineda

Director of Medical Staff Services

  • Responsible for the onboarding of our Physicians, the ongoing management of all state licensure, facility privileges, accreditation by The Joint Commission and has held a Leadership position in our company since its beginning.
  • Enthusiastic and tenacious with driving the onboarding workflow and in developing partnerships with our facilities to expedite the credentialing process for our growing roster of 60+ radiologists.

Ninfa Ramirez, ONRAD Director of Client Services, Automation and Implementation

Ninfa Ramirez

Director of Client Services, Automation and Implementation

  • Responsible for Customer Support, New Facility Implementations and ongoing development of our full automation workflow.
  • Exceptionally knowledgeable in all aspects of our business.  Since ONRAD’s beginning, Ninfa has easily navigated our customers through their daily challenges to ensure quality care for their patient community.

Tammy Bresyn, ONRAD, HR Director

Tammy Bresyn

HR Director

  • Guides and manages the overall provision of Human Resources services, policies, and programs for the entire company.
  • 30 Years of experience in managing payroll activities, 401K and PEO negotiations and the development of HR practices and objectives that ensure an employee-oriented, high-performance culture.

Our Radiologists

ONRAD’s radiologists are a select team of high quality physicians with a wide variety of subspecialty expertise. Our teleradiologists trained at some of the most prestigious medical programs in the country, and many of them hold teaching positions at nationally recognized schools. All our radiologists reside in the US and are available for services 24/7. As part of our continuous commitment to quality, all ONRAD radiologists remain active in the radiology community, holding memberships in a number of associations including the American College of Radiology, American Medical Association, American Roentgen Ray Society, American Society of Emergency Radiology, American Society of Neuroradiology, Radiological Society of North America, Society of Breast Imaging, Society of Cardiovascular and Interventional Radiology, and the Society of Pediatric Radiology.