Our Staff

Hello! I was born and raised in Columbia, TN. Marquita received her Bachelor of Science in Nursing degree from Belmont University and her Master of Science in Nursing degree from Tennessee State University. I'm certified as a Family Nurse Practitioner by the American Association of Nurse Practitioners. I have worked in the field of pediatrics since 2007. I have a passion for helping patients live their best life possible (spiritually, mentally, and physically). Outside of work, I'm an active member of First Baptist Church. I enjoy bowling, traveling, watching football, and spending time with family.

Hello, my name is Dawn Romero, I am the practice manager for CPE. I have been in the medical field for over 25 years and counting.

I am originally from California, my family and I relocated to Tennessee 16 years ago. I love being around water, from kayaking, float the river, or just sitting peacefully on a beach. I love listening to live music, and spending time with my kids and grandkids.

I have 3 beautiful daughters and 2 beautiful, very active grandkids. To me, family is the most important thing in life. My passion is helping others succeed, leading and teaching them to utilize their personal gains and knowledge in helping others succeed, to help guide those who have lost their way find their own path.

I am excited to be part of the CPE family, helping families stay healthy

Hello, my name is Haily Peterson. I am a Certified Nursing Assistant for the Center for Pediatric Excellence. I lived in Cannon County for most of my life and I now reside in Murfreesboro. I have two kids. Haven (7) and Kason (5) and they are the joy of my life. I have been working in healthcare for over 8 years. I really enjoy working with children. I love kids because they are funny and they keep you on your toes. No day is the same. I enjoy playing sports, especially softball. I played softball and basketball for Cannon County High School. Go Lions!!! I also love to cook. I can make any dish, except for some baked goods. My favorite meal to cook is Roasted Chicken with Yukon potatoes and grilled asparagus. BTW, I hate Thanksgiving food (Dr. Johnson made me put this in here). I love having fun with my friends and their kids. We love going to the lake and enjoy attending music festivals. My goal is to eventually travel all around the United States to attend music festivals like the Burning Man Project, Two Step In, Austin City Limits, Cochella, and Rock the Bells Music Festival in NYC. My goal in the future is to continue my education in the nursing field, to eventually work with pediatric oncology patients.

Hello! My name is Addison Roller. I am the Front Desk Receptionist at CPE. I currently live in Smithville, TN which is about an hour away from Smyrna. I enjoy spending time with my family, going out in nature, and traveling. I love taking cruises to different countries to see how unique and different places all over the world can be. I recently graduated in 2022 and like most people right out of high school, I was not sure what I wanted to do. I always knew I wanted to work in healthcare like most of my family has but was still unsure. I started to apply to different jobs in healthcare and Thankfully I found Dr. Derek Johnson who was willing to take a chance on me and allow me to grow in the healthcare profession. I have learned a lot in the time we have been open and I am eager to learn more. I am grateful to have bosses that push me to succeed every day and help me along the way.

Hello all! Allow me to introduce myself, I am Zharea Walker affectionately known as, Nurse Z. I love to hang out with friends, shop, and most of all experience new things. I am from Humboldt, TN, Home of the West TN Strawberry Fest, and now reside in Murfreesboro, TN.

I was a CNA for 2 years and now successfully been a Licensed Practical Nurse for 4 years and been blessed to experience myriads of specialties ranging from Geriatrics, Pediatrics, Psych and Stepdown ICU. My passion for healthcare started at a very young age being that my mom is also a nurse. I love the feeling I get from being able to care for someone and help for the betterment of the community.

I look forward to caring for more patients here at The Center for Pediatric Excellence and I am elated to work with such a wonderful staff. I am not only excited to work here but also to learn and experience more in the pediatric community.

I look forward to meeting and interacting with you and your family!

Hi! My name is Diana Blanco Franco, I am the bilingual receptionist here at CPE.  I am responsible for handling the front desk, greeting visitors, answering telephones, taking messages, and other administrative support functions. This is my first year in the medical field. I love learning new things, challenging myself, I enjoy working with baby’s and kids, helping my community in any way I can, and I love to travel. 

I graduated from John Overton High School in 2020 when COVID hit. I knew I wanted to work in the medical field but was unsure of what field to go into. I am so happy that I found Dr. Johnson’s office, I have learned so much, and have a newfound passion for being an advocate for our patients. 

I am excited to continue to learn and be part of the CPE family.

Bio Coming Soon