Our Team


MACHAON Medical Evaluations' management team includes seasoned professionals who have extensive experience with medical evaluations and business development.


James Moriarty, Founder and President


James Moriarty is the founder and president of MACHAON Medical Evaluations, Inc. His 25+ years in the medical evaluations industry includes leadership roles in marketing, sales, service and business development. James oversees all IME office operations and expansion of expert witnesses and IME healthcare professional rosters.


James holds a BS in Biology from The University of South Carolina Upstate, an EMT certificate from Spartanburg Technical College and a Masters degree in Health Administration from University of Washington.


Contact: James Moriarty

Johna Shepherd, VP Operations


Johna is responsible for office operations for MACHAON. In addition, she directs the national sales and marketing efforts. From her 20-year career in Real Estate and Hospitality management, Johna brings her extensive experience in Sales Leadership, Training and Coaching.


Among Johna's most recent successes, she was recently honored with a Global Sales and Leadership Award and Sales Leader of the year award from Marriott International. She resides in Sammamish, WA with her daughter.


Contact: Johna Shepherd

Antonia Spadoni, Scheduling Coordinator, and Physician Recruiter

Toni does Scheduling and Physician Recruitment. Her primary focus is finding the right expert for our clients and recruiting physicians.


Toni resides in SeaTac.


Toni obtained her Bachelor’s degree in Psychology and Criminal Justice from Washington State University. Go Cougs!

Isabella Schatzel, Scheduling Coordinator, and Records Supervisor


Isabella joined Machaon in May of 2019. She started as a Records Coordinator and is now a Scheduler and Records Supervisor.

Isabella resides in Maple Leaf with her husband and two puppies. She received her Bachelor of Science in Biochemistry from the University of Washington. Go Huskies!






Marta Assefa, Records Coordinator 

Bio coming soon

Contact: Marta Assefa