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I am a dual certified Nurse Practitioner. Board-certified as a PMHNP (psychiatric mental health) and FNP (family practice). Alumni of Purdue Global University and Rocky Mountain University. I have worked in multiple settings such as Retail Clinic, Psychiatry, home health, neurology, bariatrics/bariatric surgery, medical weight-loss and currently providing care to patients in multiple states mainly focussing on Psychiatric care such as depression, anxiety, bipolar disorder, schizophrenia, ADHD, and binge eating disorders. I am currently licensed as a prescriber in the state of AZ, CO, IL, NV, WI, and HI with a focus in psychiatry and family practice. Avid athlete participating in multiple ironmans, spartan and CrossFit events.

Dr. Cohen is widely regarded as a leader in pain rehabilitation and has won several “Best Doctor in Pain Management” awards. He earned his medical degree from the University of Louisville School of Medicine and completed his internship and residency at the University of Texas Southwestern Medical Center and Parkland Memorial Hospital. In addition to treating patients, he is also an Assistant Professor at the University of Texas at Arlington, and he regularly publishes his research and studies in scholarly journals. Dr. Cohen is a Dallas resident who enjoys spending time outdoors and with his family when he is not working.

Dr. Cohen is widely regarded as a leader in pain rehabilitation and has won several “Best Doctor in Pain Management” awards. He earned his medical degree from the University of Louisville School of Medicine and completed his internship and residency at the University of Texas Southwestern Medical Center and Parkland Memorial Hospital. In addition to treating patients, he is also an Assistant Professor at the University of Texas at Arlington, and he regularly publishes his research and studies in scholarly journals. Dr. Cohen is a Dallas resident who enjoys spending time outdoors and with his family when he is not working.

Diana Mummert is a psychiatrist caring for patients in North Fort Worth and Keller, Texas. Dr. Mummert moved to North Texas from Romania upon completion of medical school to conduct research at UT Southwestern. She then completed her Residency in Psychiatry at John Peter Smith (JPS) Hospital.  Dr. Mummert worked as a general psychiatrist in community and inpatient settings. 

Dr. Mummert is skilled at treating a wide range of mental health concerns, including ADD and ADHD, anger issues, anxiety, Bipolar Disorder, depression, mood disorders, OCD, personality disorders, sleep disorders, and medication management. She cares for both adults and adolescent patients.

Dr. Mummert knows that struggles with mental health can affect anyone and cause significant impairment to even the most common daily tasks. She strives to provide compassionate, comprehensive care with the goal of restoring her patients to the state of mind and level of functioning they desire. Dr. Mummert utilizes an integrative approach where she assesses her patient’s psychological, emotional, medical, and environmental contributors to problems and addresses these factors using both psychotherapy and medication management. Dr. Mummert has training and broad experience in psychopharmacology to treat psychological and emotional problems with medication.

When not treating patients, Dr. Mummert enjoys playing tennis, reading books, and traveling with her family.

Elliot Azoulay is a Board-Certified Psychiatric Mental Health Nurse Practitioner specializing in comprehensive psychiatric and psychological optimization. A graduate of Walden University with a Master’s in Psychiatric Nursing, Elliot brings a deeply collaborative, evidence-based approach to medication management and supportive therapy. He treats individuals across the lifespan—children, adolescents, adults, and seniors—with a focus on navigating complex challenges including ADHD, anxiety, depression, bipolar disorders, and PTSD/trauma. Elliot blends a warm, holistic framework with clinical precision to help patients move beyond 'survival mode' into a state of optimized mental wellness. He approaches every client with deep humility and compassion, prioritizing active listening to ensure each patient feels heard, respected, and empowered as an active partner in their own treatment journey. His goal is to cultivate a warm, supportive, and nonjudgmental environment where we build a safe, personalized path toward clarity, peace, and meaningful growth."

Chima Asikaiwe, MD, is a board-certified psychiatrist with subspecialty training in geriatric psychiatry at Greathope Psychiatry and Behavioral Health Services. He provides all his patients in Garland, Texas, with holistic and whole-person care.

Dr. Asikaiwe has over 15 years of experience caring for patients with psychiatric and psychological disorders. He helps patients manage depression, schizophrenia, anxiety, bipolar, mood, sleep, and other psychiatric conditions.

Dr. Asikaiwe also treats children with psychiatric disorders, including ADHD, depression, anxiety, and autism. Psychotherapy treatment is available when necessary.

At the initial visit, his clients are greeted with a warm welcome, thus initiating the process for the patient and provider to establish rapport and understanding gradually. Dr. Asikaiwe works with a team of therapists, counselors, and psychologists to provide comprehensive care.

When Dr. Asikaiwe’s patients are healthy and stable, patients and their families are happy. He aims to keep patients healthy, stable, functional, and productive. He works closely with the patient's family to provide support and education to understand the condition and participate in the care and support for their loved one.

Greathope Psychiatry and Behavioral Health Services are open Monday through Friday 9 am - 4:30 pm and Saturdays 9 am - 1 pm. Located in a quiet, private office setting with handicap accessible parking, Dr. Asikaiwe’s patients’ comfort and privacy are the highest priority.

He is pleased to provide the people of Garland and surrounding areas with an inviting and therapeutic atmosphere. He welcomes all patients into the practice and looks forward to caring for them.

Cecilia Chanda, DNP, PMHNP, is a dedicated and board-certified nurse practitioner at Greathope Psychiatry and Behavioral Health Services in Garland, Texas. A natural-born leader, Cecilia motivates healthcare teams to provide patients with outstanding care.

Education is important to Cecilia. She began her studies at Prince George Community College (PGCC) in Largo, Maryland, obtaining her Associate’s Degree in Nursing.

Next, she completed the Practical Nursing Program at the American Institute of Professional Studies (AIPS) in Washington, D.C., and in 2021 Cecilia achieved her Master’s in Nursing as a Nurse Practitioner at Walden University in Minneapolis, Minnesota.

As a licensed registered nurse, Cecilia has worked at Good Samaritan Nursing Center in Baltimore, Maryland, HCR Manor Care in Roseville, Maryland, and Christian Care in Mesquite, Texas. She gained experience as a PMHNP at SPC Senior PsychCare (SPC Health) in Houston, Texas, and Greathope Psychiatry and Behavioral Health Services.  

She’s held numerous contracts, including an enterprise staffing contract with Dallas Regional Medical Center in Mesquite, Texas, and a travel nurse contract at Texas Health Presbyterian Plano Emergency Room (Presby Plano Emergency Room) in Plano.

In addition to being a Registered Nurse Licensed in Texas, Cecilia holds numerous certifications, including ENPC Certificate, ACLS Certificate, CPR, BLS Certificate, IV Certified, and NIHSS Certificate.

She is particularly interested in ADHD, Bipolar Disorder, Depression, Personality Disorders, Major Depressive Disorder (MDD), medication management, and addictions management.

Cecilia welcomes all patients into the practice and looks forward to providing them with high-quality personalized care.