Meet Our Team

When choosing whom to trust with your medical care, experience and compassion should be among the most important factors in your decision-making process. The team at Texas Infectious Disease Institute is among the most experienced in the Dallas area, having helped countless patients living with an infectious disease or condition. The friendly, professional staff expertly assists Dr. Lartchenko in delivering exceptional patient care coupled with compassion, confidentiality, and most importantly, results.


Shannon Armstead – Nurse Practitioner

Lauren Welch – Nurse Practitioner at Texas Infectious Disease Institute

Shannon loves working with the team at Texas Infectious Disease Institute. She earned a Master of Science from Texas Woman’s University Nursing Education program and holds a certificate from the TWU Adult/Gerontology Nurse Practitioner (AGNP) program.

Shannon has dedicated herself to disease prevention, health promotion and patient education. Her commitment to long term patient care makes her a great fit at Texas Infectious Disease Institute. Dr. Lartchenko and the rest of the team are proud of the exceptional level of care that team members like Shannon provide.

In her free time, Shannon enjoys traveling; experiencing new things with her family is one of her greatest joys. When she can’t travel Shannon loves spending the afternoon shopping. If you see Shannon in the office be sure to say hi!



Angela Redmon – Office Manager

Angela Redmon – Office Manager at Texas Infectious Disease InstituteAngela became Texas Infectious Disease Institute’s office manager in April 2016 and has never looked back. She is extremely compassionate with our patients and is grateful for the opportunity to work so closely with those in need.

Angela received her business administration degree from the University of North Texas in 2006. She has also earned certifications in Medical Assistance and as an EMT/Paramedic. In addition to conquering her degrees and certifications, she has spent the last 20 years raising her four boys.

When she isn’t at the office, Angela spends time cooking and trying new foods with her family. She loves to share the joy of food with her kids, husband and parents. Luckily for us, she brings just as much joy to her responsibilities at work, making our practice that much more warm and comfortable.