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Meet Our Staff


Christopher Jackson, MBA



Chris has just joined our team as President of The McGinley Clinic. He was proudly born and raised right here in Casper. Prior to joining us, Chris completed his master’s in business administration (MBA) from the University of Wyoming in 2019. Chris has 15 years of business management experience. He is dedicated to successful growth while focusing on helping patients and colleagues to create a positive environment and culture. Away from work, Chris is happily married with two daughters (girl dad) – his family is his #1. He is an avid sports fan and competitive golfer in his spare time.


Mindy Walden


Nurse Practitioner

Mindy has been a Casper resident for over half of her life. She has over 20 years of nursing experience and a passion for learning and advancing in the nursing field.


In her spare time, she loves spending time with her husband and two sons enjoying the outdoors: camping, skiing, boating, and traveling in and out of the state for soccer and hockey.


Mandy Rivera


Radiologic Technologist

Mandy has been a Wyoming resident for nearly 18 years and a Casper resident since 2015. Graduating from Casper College, she has been working in radiology for over five years, specializing in computed tomography and CT guided procedures.  


In her time outside of Healthcare, Mandy enjoys helping her husband, James, with real estate, raising and selling healthy food options to their community, hunting, gardening and spending time with family.


E. Megan Carlisle

Medical Assistant

Megan recently moved to Casper, WY from Northern Colorado. She has worked in the medical field for over 6 years in various roles. From home health aide, call center personnel, front desk receptionist to a medical assistant in family practice. She's also a current member of the US Air Force Reserves serving as an air transportation specialist. Previously served in Active Duty US Army for 3.5 years as a Patriot Missile Systems maintainer and operator. While in the US Army I was deployed for 9 months to Bahrain and served a year in South Korea. Outside of work I have a variety hobbies to include custom woodburning art, sewing, baking, hunting, fishing, and watching all sports but especially hockey GO AVS! And last but certainly not least spending time with my boyfriend and traveling to visit family.


Jenn Hawley


Patient Care Coordinator


Jenn has worked more than 20 years in patient care. She is a Casper native who graduated from the Casper College radiography program. Her learning continued as she went on to graduate from Providence Hospital in Detroit, MI from the diagnostic medical sonography program. 


Candy Leggett 


Imaging Director

Candy is a proud Wyoming native with close to 20 years of patient care and Radiology experience. She had previously worked with Dr. McGinley for several years helping with many of his different procedures offered and is very excited to be back working alongside him and the team.

Outside of work she has a wonderful husband and two beautiful little girls who keep her very active and busy.  The whole family loves anything outdoors but especially enjoys camping, fishing, and riding side by sides together exploring the many beautiful sights Wyoming has to offer.


Brandon Miller


Nurse Practitioner

Since Brandon was young, he has enjoyed helping others and being of service to his community. He achieved his undergraduate degrees here in Wyoming, including nursing degrees from Casper College and the University of Wyoming. He obtained his graduate nursing degree through Concordia University in Mequon, WI. 

Brandon was born and raised in Wyoming, which is he and his wife Lacy has chosen to raise their two wonderful and very active young children. They enjoy spending time together doing many of the outdoor activities that Wyoming has to offer including: hiking, biking, swimming, camping, traveling, and exploring.


Ranae Hagerman-Moore

Billing Supervisor

Ranae is a Missouri native that moved to Casper 11 years ago. She attended Colorado State University and graduated with a Bachelor’s degree in Accounting. Soon after, she transitioned to the medical sector. Her experience includes working in the Emergency Room at a level 1 Trauma Center and later moving into Registration Management. She has assumed many roles including scheduling, authorization and billing in both an administrative and management capacity.


Danielle Martensen


Radiologic Technologist


Danielle Martensen joined the McGinley Clinic in August 2022. She recently graduated with her Associates from the radiography program at Casper College in May 2022. Danielle will be working as a rad tech in our imaging department. Her previous experience includes several years of customer service and working with children.

She has spent most of her life in Casper. In her time away from work, she has 2 boys who keep her very busy. 


Seth Taylor, PA-C

Physician Assistant

Seth recently moved to Gillette, WY with his wife Aisha. He graduated from Marietta College with a Bachelor of Science in Health Sciences and the Marietta College Physician Assistant Program in Marietta, OH. He served in the US Army as a Combat Medic for the 10th Mountain Division in Fort Polk, LA. He deployed to Afghanistan, served as a company medic for West Point, and as a line medic for the CAV. In his spare time, he enjoys college football, hockey, motocross, fishing, hiking, and spending time with his wife, his dog and cat. He and his wife are looking forward to becoming a part of the great communities here in Wyoming. 


Breck Groskreutz, PA-C

Physician Assistant

Breck is a native of Kearney, NE and attended the University of Wyoming and received his Bachelor of Science in Physiology in 2017. He received his Master’s in Physician Assistant Studies from Des Moines University in 2020. Following graduation, Breck returned to Wyoming and has spent the past two years working in Gastroenterology.

When not working, Breck enjoys playing softball, hiking, camping, fishing, skiing, spending time with

his family and dog, watching college sports, and cheering on the Wyoming Cowboys.


Shelly Hays




Shelly is a proud resident of Casper, Wyoming. She comes to us after working as a scheduler for over 11 years for an OBGY office here in Casper. She recently decided to embark on a new adventure and joined the McGinley team. It's been an exciting transition for her as she has stepped into the world of numbers and accounting. 

When Shelly isn't working, you can find her spending quality time with her 7 grandchildren or riding bikes along the riverwalk with her husband and family.


Jen Pierce, MBA RT(R)

Gillette Office Manager

Jen is a Nebraska native that moved to Wyoming 29 years ago to work in Radiology. She has close to 15 years of patient care and Radiology experience as well at close to 15 years of Office Management experience.  She earned her MBA from the University of Mary while working full time in Radiology and Nuclear Medicine.  

Outside of work she has 3 grown children, a daughter and 2 sons. She also has 2 grandsons who keep her busy when she isn't working. 

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