APRN, PMHNP-BC
Meet Merrissa Wesley-Chapman
Merrissa is a board certified psychiatric mental health nurse practitioner. She cares for adults and seniors across Texas, and she believes every patient deserves to feel heard.
A whole person approach
Merrissa looks at the full picture: your mood, sleep, stress, relationships, health and goals. She pairs proven treatments with a plan made for you, and she explains each option in plain language so you can choose what feels right.
Her style is warm, open minded and empowering. The name of the practice says it well: your mind, your voice, your Oaysis. You have a say in every decision about your care.
Experience and training
Merrissa has 12 years of nursing experience, including acute care, and now focuses on psychiatric care for adults. She earned her Bachelor of Science in Nursing at Valparaiso University and her Master of Science in Nursing at Northern Kentucky University. She is a Chicago native.
Why she chose psychiatric care
I chose psychiatric care because I am passionate about helping destigmatize mental health and creating a space where people feel seen, heard, and supported. Throughout my career, I have cared for individuals facing mental health challenges, while also witnessing people close to me navigate their own mental health journeys. These experiences deepened my compassion and inspired me to make a meaningful difference in the lives of others through accessible, supportive, and compassionate mental health care.
Her approach
What care with Merrissa feels like
You are heard
Your first visit is a real conversation. Merrissa wants to understand your story, not just your symptoms.
You help decide
She explains your options, including medication, therapy and lifestyle changes, and you choose the plan together.
Your care adjusts
Follow up visits track how you are doing, so your plan can change as you do.
Ready when you are
Reaching out can feel like a big step. We will make the next ones simple.