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About Us

Who We Are

Tranquility Behavioral Health Clinic & TMS Center is family owned and operated by Dr. Henrietta Evans DNP, RN, PMHNP-BC, GNP-BC who has over 27 years of nursing and patient care experience.  Dr. Evans DNP has cared for patients in a variety of settings when they needed expert and competent nursing care. 

She has dedicated her life to helping individuals and families achieve happiness and wellness across the life span.  She understands how hard it is to make a decision to seek out psychiatric mental health services.  She believes in helping people holistically.  People often experience challenging life experiences that may be hard to deal with. 


Making the right decision to get help is an important one, which can also be a difficult one. There are times in life where ​situations or daily life responsibilities compromise one’s ability to manage things in ways we would like too.  We believe in helping clients’ cope and manage those life challenges and situations.  

As one of the Houston area’s most prominent resources for quality mental healthcare, Tranquility Behavioral Health specializes in a wide range of psychiatric mental health services to get patients feeling mentally healthier than ever before. And while we work hard to offer top-of-the-line treatments that help you feel better and get better, we also focus on preventative strategies to ensure you stay better longer.

What is a 


The Doctor of Nursing Practice (DNP) is an Advance Practice Registered Nurse who possesses the highest level of nursing expertise, clinical knowledge, and  leadership. 

What is a 


The  Psychiatric Mental Health Nurse Practitioner is a board certified Advanced Practice Registered Nurse that specializes in treating the mentally ill across the life-span.  PMHNP's prescribe medications and provide psychotherapy to their patients.

What is a 


A Gerontological Nurse Practitioner is a board certified Advanced Practice Registered Nurse that specializes in the care and treatment of older adults.

What is a 

Nurse Practitioner?

A Nurse Practitioner is an Advanced Practice Registered Nurse that is prepared at the Doctoral or Master's level.

Opening Hours

Our Locations

Contact Details

Monday - Thursday 8am - 5PM
Friday: 8am - 4pm
Saturday & Sunday: Closed

Kingwood Location:

201 Kingwood Medical Dr.

Ste A500

Kingwood, TX 77339

Katy Location

633 E. Fernhurst Rd

Ste. 201

Katy, TX 77450


Fax: 877-495-4112

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