HCMIS Team
A Mission Made Local
At Health Care Medical Infusion Specialties, our mission comes to life through the people who live and work in the communities we serve. From clinical leaders to frontline caregivers, our team is rooted in northern Michigan and united by a shared purpose—to ensure patients receive the care they need, close to home.
We are nurses, pharmacists, technicians, and care coordinators. We are neighbors and community members. And together, we are proud to deliver the kind of personalized, compassionate infusion care that only a truly local team can provide.
Our leadership team brings deep expertise in infusion therapy, operations, and clinical care. But it’s the strength of our entire team—working side by side each day—that makes the difference.
Kristi Walker, PhT
Chief Operating Officer
Kristi grew up in Florence, Mississippi where she graduated from Florence High School. She then attended Meridian Community College where she played softball. She received her Bachelor of Science Degree in Business Administration from Mississippi College. She has 15 years of marketing and business experience in the durable medical equipment industry and infusion pharmacy. She finds great satisfaction as a leader in the healthcare industry. Kristi is a Board Member and active in fundraising for the Cystic Fibrosis Foundation Mississippi Chapter and active in fundraising for MS Society Mississippi Chapter. Kristi and her husband Gus have two children, Taylor and Avery. She enjoys fishing, traveling, and spending time with friends and family.
Tonya Mayers-Sherman, FNP-C
Nurse Practitioner
Tonya graduated from Hinds Community College in 1999 with a licensed practical nurse certificate. In 2005, she graduated from Holmes Community College with an Associate Degree in Nursing. Tonya earned her Bachelor of Science in Nursing from the University of Southern Mississippi in 2007, where she graduated with honors. She later went on to earn her Master of Science in Nursing from Walden University in 2018, graduating with high honors. She is nationally certified by the American Academy of Nurse Practitioners and licensed to practice as a Family Nurse Practitioner in the state of Mississippi. Prior to joining the Health Care Medical Infusion Specialties team, she worked in a variety of specialties including trauma/surgery, vascular, inpatient rehabilitation, and venous vascular. Tonya is married with two daughters, Taylin and Tiarah. She enjoys shopping, traveling, and spending time with family and friends.
Christy Neely, PharmD
Director of Clinical Pharmacy and Pharmacist in Charge
Christy Neely earned her Bachelor of Pharmaceutical Sciences and then her Doctor of Pharmacy from the University of Mississippi School of Pharmacy in 2002. She has a diverse pharmacy background with over 20 years of experience including retail, hospital, specialty, and home infusion pharmacy. After a brief stint in retail, she spent the next 8 years in a hospital pharmacy using her clinical skills to manage sterile compounding of parenteral medications including antibiotic, pain management, inotrope, and total parenteral nutrition for adult and pediatric populations. She then found her passion in specialty home infusion. After working for a large corporate home infusion pharmacy for several years, she found her home at Health Care Medical Infusion Specialties. Over the last 8 years, she has led the pharmacy growth in her role as clinical manager and business administrator. She has personally become licensed to practice pharmacy in 17 states and is in the process of obtaining pharmacy permits for HCMIS in 50 states. She takes pride in ensuring that all her patients are treated with quality care and compassion. Christy is married with one daughter, Maggie. She enjoys spending her time working in the yard and going to Ole Miss football games.
Tonya Mayers-Sherman, FNP-C
Nurse Manager/Certified Registered Infusion Nurse
A native of Canton, Mississippi, Michelle is a graduate of Canton Academy. She earned her Associates Degree in Nursing from Holmes Community College. Michelle previously worked as a cardiac nurse. Since joining the Health Care Medical team five years ago as an infusion nurse, she has earned her designation as Certified Registered Infusion Nurse and is now our Nurse Manager. Being a nurse has been a rewarding career for her, because she is passionate about patient care and making a difference in healthcare. Michelle currently resides in Brandon with her husband, Jason. She enjoys spending time outdoors with friends and family, including her two sons, Grayson and Caleb.
One Team. One Mission.
We believe that local care teams drive better outcomes. With roots in the region and a commitment to those we serve, our entire team is invested in improving lives—one patient, one treatment, one connection at a time.