Dr. Su attended Second Military Medical School in Shanghai, P. R. China, and Wayne State University in Detroit, MI. He completed his residency training at the University of Illinois at Chicago and has been a provider for over 20 years.

Dr. Su sees patients 18+ at the Promise Healthcare - Neil location.

Dr. Su specializes in mood disorders, anxiety disorders, psychotic disorders, and substance use disorders. He is excited to help people regain control of their lives. 

He encourages patients to follow medical advice, keep appointments, take medications, and actively participate in their journey. He wants patients to know he is here to help whenever needed.

Dr. Su is very family-oriented. He is married with two adult children. In his free time, he enjoys shopping, exercising, and collecting stamps and coins. 

He likes to serve the community by supporting the Community Resource Center.

Tiffany completed her education at Walden University, and she is excited to begin her career with Promise Healthcare as a Psychiatric Nurse Practitioner.

Tiffany is a dedicated mental health professional who is committed to helping others improve their mental, emotional, physical, and spiritual well-being.

She strongly encourages her patients to prioritize their health by getting regular check-ups, exercising, and maintaining a healthy diet, while avoiding smoking and excessive alcohol consumption. Tiffany firmly believes that these choices can have a positive impact on overall health.

In her free time, Tiffany enjoys traveling and exploring nature. She is also passionate about supporting youth programs and believes that positive mentors are essential for the well-being for everyone!!

Jessica received her education from Richland Community College, Indiana Wesleyan, and Walden University. She has worked in healthcare for over fifteen years. 

Jessica sees patients 5 & up at the Promise Healthcare-Neil location.

Jessica is passionate about learning about each patient and providing personal, individualized, holistic care. Working together with the patient, Jessica believes they can collaboratively set treatment goals and support growth toward attaining improved mental health and greater quality of life.

During her free time, Jessica loves practicing yoga, reading, hiking, exploring museums, watching true crime documentaries, and playing with her kids. “We love going to visit the Most Magical Place on Earth.”

A fun fact about Jessica is that she went to Australia during her undergrad education for an International Scholars Program, where she learned about women's healthcare services and the universal healthcare program—and went skydiving!

Tiesha Taylor-Ducker is a board-certified Psychiatric-Mental Health Nurse Practitioner who completed her first master’s degree at Capella University for Nursing Leadership and Administration and completed her Post Master’s Degree at Walden University as a Psychiatric Mental Health Nurse Practitioner Tiesha obtained her undergraduate nursing degree at Indiana University Northwest. She provides care to patients across the lifespan, including children, adolescents, adults, and older adults. She is passionate about helping patients feel heard, understood, and supported. Tiesha believes that mental health care is most effective when it is collaborative, non-judgmental, and tailored to each individual’s goals and values. Tiesha values Promise Healthcare’s dedication to accessible, compassionate care and is especially committed to supporting individuals and families in underserved communities. Her approach focuses on building trust, promoting stability, and empowering patients throughout their mental-health journey. Outside of work, Tiesha enjoys spending time with her family, shopping, traveling, and cooking. A fun fact about her is that she is an identical twin, and her sister is also a Psychiatric-Mental Health Nurse Practitioner.