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

President & CEO

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).

Mike Behling, CFO

Mike Behling

Chief Financial Officer

  • Over 17 years of experience with overseeing day-to-day finance, accounting, payroll, treasury, tax, risk management, revenue cycle management and  employee benefits
  • Significant healthcare & technology company experience, including Healthcare Services (Imaging Advantage), Medical Device (Clinical Innovations) & Technology (Harris Broadcast )
  • Expert in identifying growth prospects and steering the long-term financial outlook for ONRAD

Kais Aldahshan, Sr. VP of IT

Kais Aldahshan

Sr. Vice President of IT

  • A seasoned Radiology clinician and a health IT expert with more than 20 years of experience in the industry
  • A subject matter expert in Medical Imaging process, optimization, EHR modernization
  • Served as an advisor to senior public healthcare officials around the world on e-health strategy and operations including the VA and DoD’s EHR modernization programs


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

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


Christian Ingui, M.D.

Associate CMO

  • Responsible for the clinical leadership to the ONRAD hospital-base division, ALLRADS
  • As Associate CMO for ONRAD, Dr. Ingui will develop and implement workflows that will allow our Physician Network to utilize our technology more effectively to meet their personal goals
  • Dr. Ingui has over 20 years of experience interpreting a broad mix of subspecialty exams

Jose Ospina, M.D., Ph.D.

Jose Ospina, M.D., Ph.D.

Associate CMO

  • Dr. Ospina has been providing outstanding quality patient outcomes for ONRAD since 2011
  • Together with Dr. Ingui, he will focus on unleashing the potential of ONRAD’s state-of-the-art technology to help maximize productivity levels across our entire Physician Network
  • Over 16 years of experience in the industry

ONRAD Medical Director Dr. Atul Patel, MD Teleradiology Radiologist

Atul Patel, MD

Associate CMO

  • Ensures excellence in patient care to the facilities we serve by overseeing our Mammography program
  • 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

Associate CMO & 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, VP of Sales

Robb Vaules

VP of Sales - Western US

  • 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

Mark Pierce, VP of Sales - East

Mark Pierce

VP of Sales - Eastern US

  • More than 25 years’ experience in the medical industry with a strong focus on Hospital Leadership, Business development and operations concerning imaging centers, ambulatory surgery centers and physician management
  • Previously served as the Global Head of Radiology for Siemens AG responsible for all aspects of managing hospital radiology departments as well as all Joint Venture partnerships worldwide
  • Mark can be reached at 951-476-3119 or mpierce@onradinc.com

Jerry Lee, ONRAD Vice President of Analytics

Jerry Lee

VP of Development & Analytics

  • Responsible for leveraging 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

Tammy Bresyn, ONRAD, HR Director

Tammy Bresyn

Sr. Director of HR

  • 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

Jessica Jimenez, Director of Operations

Jessica Jimenez

Sr. 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

Sr. 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

Ninfa Ramirez

Sr. 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.

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

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.