North Pointe Psychiatry is a behavioral health clinic under the direction of Dr. Asad Islam. It is our goal to  provide thoughtful, competent, compassionate and  thorough psychiatric evaluation and continuing care in a confidential and respectful environment.

Both inpatient and outpatient treatment is available.              

Consultation is by appointment only. 

Our Team


Asad Islam M.D.


Dr. Islam is Board Certified by American Board of Psychiatry and Neurology with additional Certification and Training in Geriatric Psychiatry with 20+ years of experience. Dr Islam completed his Psychiatry Residency Training at Columbia University affiliated Harlem Hospital center, NY. He was appointed as Chief Resident on his finale year of training. After completion of adult residency Dr Islam completed Fellowship training in Geriatric Psychiatry at University od Medicine and Dentistry -Robert Wood Johnson University Hospital, NJ.  He is experienced in performing electro-convulsive treatment (ECT) for medication-resistant depression and psychosis. He is also certified for office-based Suboxone treatment for opiate dependency. 

Dr.Islam currently serves as Chief Medical Officer at Mayhill Hospital, Denton, TX since 2011. In past Dr Islam has served as a Program Director of adult outpatient services at University Behavioral Health at Denton, Texas and has worked at various psychiatric facilities in Texas, NJ and NY.

Dr.Islam is skilled in compassion care and has ability to heal a vast population of people that struggle with mental illness.


Anita Thomas, PMHNP-BC

Anita Thomas  joined North Pointe Psychiatry in 2014. She is a board certified Nurse Practioner at North Pointe Psychiatry and works at both Lewisville and Denton locations. Anita graduated from a Masters of Science program in Nursing specializing in Psychiatry from UTA college of Nursing, Arlington in 2014. She has been practicing for the last 5 yrs in outpatient Psychiatry and has almost 20 yrs of diverse experience as an RN. She is also certified for office based Suboxone treatment for opiate dependence disorder.  

Ms. Anita is a member of ANNA : American Nephrology  Nurses Association since 2008.


Bret M. Menassa, Ph.D, LPC

Bret M. Menassa  is a Licensed Professional Counselor,  psychotherapist, and board-approved clinical supervisor. Before  joining North Pointe Psychiatry, Bret was the Director of  Clinical Services at Mayhill Hospital in Denton, and a clinician in the department of Psychiatry at Texas Health Presbyterian   Hospital, Dallas. 

Bret has counseled adults, couples, families,  and adolescents facing difficulties with depression, anxiety, substance abuse, eating disorders, and other mental and  emotional health issues affecting relationships, work, and  family. Bret received both his Master’s and his Doctoral degrees  in counseling at the University of North Texas, and has been an  adjunct professor of counseling at both UNT and SMU since 2006.  Bret believes that emotional well-being is a lifelong process of  personal growth, and is confident that counseling can help people live fuller, more satisfying lives. 


Marian Fabyan, MSN, APRN, PMHNP-BC

Marian Fabyan joined North Pointe Psychiatry in 2014. She is a Board Certified Nurse Practitioner at North Pointe Psychiatry, Denton. She graduated from a Master’s Program at UTA College of Nursing, Arlington, Texas in 2014 specializing in Psychiatry/Mental Health. She has 5 years’ experience as a Practicing Mental Nurse Practitioner and 15+ years of diverse experience as a Registered Nurse.

Patients consult with her on daily basis for initial assessments, follow up visits to monitor progress and where necessary, make changes to patient’s treatment medication. She is also certified for office-based Suboxone treatment for opiate dependency.


G. Earl Dorber, MA, LPC

G. Earl Dorber, is a Licensed Professional Counselor and psychotherapist. Before joining North Pointe Psychiatry, Earl was the Outpatient  Therapist at Mayhill Behavioral Hospital in Denton. He has also  served as a member of the Metrocare Rapid Assessment & Prevention Team, dedicated to counseling those with prior  incarceration or hospitalization due to mental illness and/or  substance abuse with the goal of preventing relapse.

A graduate  of Amberton University with a masters degree in Counseling, Earl  has provided treatment to adults, couples, and families presenting with symptoms of depression, anxiety, anger, substance abuse (dual diagnosis), relationship problems, self-esteem, employment stressors and other issues. Earl served   post-graduate internships at Timberlawn Psychiatric Hospital  (Dual Diagnosis Unit), as well as Dallas Child and Family Guidance Center. Earl believes in establishing the counseling  relationship with a Person Centered approach of congruence, empathy and unconditional positive regard, while proclaiming to  be a “disciple” of Rational Emotive Behavioral Therapy.


Cristina (Tina) Newsom, MSN, PMHNP-BC

Cristina Newsom graduated from MSU with a Bachelor of Science in Nursing and Master of Science in Nursing (Psychiatric Mental Health Nurse Practioner). She has 7 years of psychiatric nursing experience. 

As a psychiatric RN, Tina worked in high acuity inpatient units and psychiatric emergency departments at JPS Health Network and Parkland Hospital for almost 6 years.  As a PMHNP,  her goals is to help people minimize the symptoms that keep them from living their lives with purpose, meaning and inner peace. 


Michael Seifu, Texas Nurse Practioner

Michael Seifu  joined North Point Psychiatry in December 2018. He completed his certification program in Texas from Midwestern State University (MSU). He currently work for another practice as a Family Nurse Practitioner (FNP) in a fast-paced emergency department and has been working as an FNP in various roles since 2014 after graduating from Texas A&M University, Corpus Christi. Using his graduate business degree (MBA) and nursing license,  he also worked in various healthcare leadership roles from 2005 to 2014 for several hospitals and healthcare organizations. Furthermore, he  functioned in the D/FW area for many years as a 911 paramedic in the early years of my clinical career. Michael has a diverse background in business, information technology, and clinical practice.  

As a hobby, Michael continue to read a lot on the topic of integration and collaboration of information technology and healthcare in the form of e-books (little time to read so I listen to my books). He love spending time with his son and family and continue to teach nurses and patients.


Rauvi Blackwell, MSN, PMHNP-BC

Rauvi Blackwell graduated from Midwestern State University in 2016 and earned Master of Science in Nursing - Family Psychiatric and Mental Health Nurse Practitioner. Rauvi is Board certified psychiatric mental health nurse practionar.

Rauvi Blackwell has 3+ year experience in both Inpatient and Outpatient settings. She also provide services at Mayhill Hospital Adult and Geriatric psychiatry units, Partial Hospital Program and Intensive Out Patient Program. She is experienced in treating adolescents and adults with various mood disorders including anxiety, depression, and attention deficient hyperactivity disorder. She practices in collaboration with physician to assess, diagnose, and treat psychiatric disorders. She enjoys spending time with her family and visiting new places in her spare time.