Leadership Team

Mr. Kolb has more than 20 years of leadership experience in the business side of healthcare. Robb has served as a transformational leader in all his management experiences, producing customer and employee satisfaction cultures. He is a graduate of Anderson University with a BBA and an MBA.

Anthony Adelson, MD - Radiologist/Diagnostic and Interventional Radiology - Dr. Adelson is a Board Certified Radiologist by The American Board of Radiology in Diagnostic Radiology. He also holds a Certificate of Added Qualification in Interventional Radiology. Dr. Adelson is also MQSA certified and performs on-site breast biopsies. His academic background includes Associate Professor, Section Head Interventional Radiology, Fellowship Director Interventional Radiology, Radiology Resident Teacher of the Year Award, and several publications in peer-reviewed journals.

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Mrs. Humphries oversees daily operations and customer service including client, referral and patient communication ensuring we maintain our culture of radiology with personality. Melanie’s team coordinates communication daily between our radiologists and our clients' referral physicians. She oversees credentialing, licensure and physicians continuing education coordination.

Darrin champions NRAD's customer growth, retention, profitability, marketing, and promotion. Darrin's self-motivation, consultive approach, gifted networking, and integrity have developed longstanding relationships with radiology groups, imaging centers, multispecialty clinics, hospitals, and industry professionals for over 15 years. Darrin passionately advocates for his team, and his ethos is "competence, collegiality, and community, and everyone always deserves kindness and respect."

In 2005, Darrin entered the radiology field after being introduced to diagnostic imaging technology as his father was battling a rare form of cancer. He chose to apply his knowledge of business development, customer retention, and marketing in the Radiology industry. Before entering the radiology industry, Darrin was the president and partner of a thriving staffing and HR company. There, the organization increased its market share and expanded into several new communities. In addition to the business development and marketing responsibilities, Darrin managed sales, account manager, and customer support teams. As a result, the organization recognized many years with 20-30% growth in ARR.

Darrin is married; he and his wife live in greater Nashville, TN. They have a daughter, son, two dogs, and a grand dog. He enjoys; bicycling, music, pickleball, scuba diving, hiking, and MSU Football. His golf game is ugly, but he's working on it!

You can schedule a meeting with Darrin if your practice/facility is changing or adding teleradiology support.

Mr. Ambrose has over 5 years of experience in the IT field and administrates company IT systems while supporting clients and designing NRAD’s future IT architecture. He also oversees the information technology strategy and develops goals for the IT department.

Caleb joined NRAD in December 2019 and served as Operations Manager for two years before stepping into his current role in April 2022. In his current role, Caleb oversees Physician recruitment, RADPEER, and other projects that pertain to our Physician staff. Caleb also assists NRAD Operations in developing and implementing processes designed to meet a customer's unique needs. Caleb has a previous hospital and clinical experience working in Perioperative Services and Pathology. Caleb enjoys golfing, playing music, and time with family when he's not working.

Ms. Belk assists in the management of the physician service and reporting at NRAD. Her team ensures complete patient information and imaging history is prepared and delivered to the appropriate physician specialist. The effective physician liaison role her team plays is an integral part of the timely delivery of high quality radiology and cardiology final reports.

Lydia Chastain has over five years of experience overseeing finance in the healthcare environment, joining NRAD’s finance team in 2017. She earned an undergraduate degree in business administration and a master’s in organizational leadership from Anderson University. Lydia is passionate about maintaining excellent relationships with internal and external stakeholders, including vendors, clients, and employees. She utilizes a servant leadership model and believes that her purpose in the organization is to serve and empower her staff, maintain timely vendor payments, and ensure the organization’s finances are managed to position NRAD for health, growth, and the ability to serve our communities. Lydia is married to her high school sweetheart and is a devoted mother to one daughter. In addition, she enjoys spending time cooking, gardening, and hiking with her family.

Doris's passion for patient care began when she worked in the Children's Emergency Center at an extensive hospital system's local Level I Trauma Center. She later made a career change that better suited her growing family and joined NRAD as an Operations Specialist in 2020.

She brought her experience in bedside emergency medicine and acute care as she worked with the radiologists after hours to provide timely results to customers and appropriately communicate positive findings. As Doris excelled in her role, she expanded her knowledge of emergency medicine to include radiology. Doris has long felt a calling to be in healthcare. Shortly after joining NRAD, she was pleased to work within her calling and immediately fell in love with the company's culture.

Doris was promoted to Operations Manager in 2022. She oversees a team that supports customers and radiologists to provide excellent service in study turnaround times, addendums, diagnostic services, positive finding communication, and more. She embraces and exhibits the servant leadership model that many larger organizations have lacked in her experience.

Doris resides in the Upstate of South Carolina with her husband, children, two golden retrievers, and two cats. In her spare time, Doris enjoys hosting, cooking, cinema, music, college football, and spending time outdoors with friends and family.