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Dr. Asher Imam, D.O., F.A.A.N., is an experienced neurologist and neurophysiologist, specializing in neurology, clinical neurophysiology, vascular neurology, and sleep medicine. He is also the president and founder of Southlake Neurology & Neurophysiology Clinic in Southlake, Texas. 

At Southlake Neurology & Neurophysiology Clinic, Dr. Imam focuses on the diagnosis and treatment of acute and chronic neurological disorders, including epilepsy, multiple sclerosis, sleep disorders, and chronic headaches. He also served as the director of Baylor-Grapevine Comprehensive Epilepsy and Sleep Disorders Center in Grapevine, Texas. There, Dr. Imam treated patients with sleep and epileptic disorders while maintaining the integrity of the program by educating staff technicians and their certifications. He also served as a director of neurosciences at Baylor Scott and White Medical Center in Grapevine, Texas for 9 years where he started the stroke program. Dr. Imam also started the first stroke certified (Joint Commission) in Tarrant County at Medical Center of Arlington. He has been recognized as a Top Doctor by Fort Worth magazine and has received several awards for his compassionate approach to care and his dedication to patient satisfaction. Dr. Imam is a clinical adjunct professor of neurosciences at both TCU School of Sleep Medicine and UNT Health Science Center. 

Certifications:

• Diplomate in the specialty of Neurology

• Diplomate in the subspecialty of Clinical Neurophysiology

• Diplomate in the subspecialty of Vascular Neurology

• Diplomate in the subspecialty of Sleep Medicine

Education:

• Fellowship in Clinical Neurophysiology (neuromuscular disorders and epilepsy) from

• Medical College of Georgia; Augusta, Georgia

• Residency in neurology from Medical College of Georgia; Augusta, Georgia

• Internal medicine internship from Medical College of Georgia; Augusta, Georgia

• Doctor of Osteopathic Medicine from University of North Texas health science Center at Fort Worth, Texas

• Bachelor of Science in Electrical Engineering from Lamar University Beaumont, Texas

Years of experience:

•Over 20 years of both inpatient and outpatient experience treating a wide variety of neurological disorders.

•Awarded Fellowship of American Academy of Neurology (FAAN) in 2022.

Previous leadership positions:

• Director of Baylor-Grapevine Comprehensive Epilepsy and Sleep Disorders Center

• Director of Baylor-Grapevine Stroke Center of Excellence

• Director of Stroke Program at Medical Center of Arlington

Awards:

• Best of Readers’ Choice 2025
  
  
• Living Magazine’s Best of North Texas 2020 and 2021
  
  
• Top neurologist 2019
  
  
• Best of Physicians and Surgeons for 11 years in Southlake, Texas 2018
  
  
• America’s most honored profession 2018
  
  
• Patients’ choice award (Vitals) 2018
  
  
• Top Docs Texas Monthly 2015, 2018, 2019, 2020, 2021, and 2022
  
  
• Super Docs (Tarrant County Addition) March 2014
  
  
• People’s choice award for patient satisfaction (top 1% in patient satisfaction in the nation, July 2011)
  
  
• Physician of the month, July 2011, Baylor Medical Center
  
  
• Featured on ABC, CBS and NBC prime-time news
  
  
• Top Docs of Fort Worth Texas, 2009
  
  
• Alpha Epsilon Delta and Phi Beta Pi Honor societies
  
  
• AMA / MSS Outstanding membership recruitment award
  
  
• AMA / MSS Outstanding Student Sponsored Activity/ Service
  
  
• President, American Medical Association/ MSS UNTHSC chapter
  
  
• Delegate, American Medical Association/ MSS
  
  
• Delegate, Texas Medical Association/ MSS
  
  
• Student Rep, Tarrant County Medical Society
  
  
• Who’s who in Science and Engineering
  
  
• Who’s who in Professionals and Executives

 

Dr. Jacob is a board certified psychiatrist and a Dallas native who provides compassionate, individualized and holistic care for her patients. She completed medical school at the University of North Texas Health Science Center – Texas College of Osteopathic Medicine. For her residency, she trained in general psychiatry at the University of Texas Medical Branch in Galveston, TX, where she served as the chief resident in her final year. Dr. Jacob has experience treating patients with Major Depression, Bipolar Disorder, anxiety disorders, substance use and PTSD among other conditions. Her clinical interests include mood disorders, the interface between psychiatry & spirituality, and women’s mental health. She is also an assistant professor at TCU School of Medicine and an international speaker for a mental health charity organization.

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.

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.

Tyson Lippe, M.D. is a board-certified psychiatrist. He earned his Doctor of Medicine at the University of Texas Medical Branch in Galveston where he was a member of the Gold Humanism Honor Society. Dr. Lippe then completed his psychiatry residency at the Medical University of South Carolina, where he received the J.J. Cleckley Clinical Excellence Award. In addition to his general training, he received specialized training in substance use disorders, dialectical behavior therapy (DBT), transcranial magnetic stimulation (TMS), and electroconvulsive therapy (ECT).

Welcome to SanCharles Behavioral Healthcare Services, LLC, based in Addison, Texas, where we provide outstanding telehealth-only behavioral health services. Our psychiatric mental health nurse practitioner, Sandra Nwanganga-Anusiem, DNP, PMHNP-BC, provides compassionate, nonjudgmental care for patients of all ages, including those in the LGBTQ+ community. 

Sandra uses research-backed approaches to ease symptoms of mental health challenges, offering her patients opportunities to feel their best and thrive during every stage of life.

SanCharles Behavioral Healthcare Services LLC treats attention-deficit/hyperactivity disorder (ADHD), bipolar disorder, depression, and anxiety disorders. We also care for patients with obsessive-compulsive disorder (OCD), post-traumatic stress disorder (PTSD), grief, personality disorders, including borderline personality disorder, and many other conditions.

Sandra offers counseling, medication management, lifestyle coaching, and a combination of treatments that restore mental health, well-being, and quality of life. She tailors treatment plans to patients' individualized needs, allowing them to rediscover joy and flourish.

Schedule a virtual mental health evaluation at SanCharles Behavioral Healthcare Services LLC by calling the office or booking an appointment online today.

Ingrid Suazo, DrHA, MSN, APRN, PMHNP-BC, is a psychiatric mental health nurse practitioner. She completed her master’s degree in nursing at West Coast University in California. For her post-graduate studies, Ingrid pursued a psychiatric mental health nurse practitioner program at Regis College in Weston, Massachusetts. She completed her doctorate in healthcare administration at the Virginia University of Lynchburg. Ingrid has extensive experience working with severe mental health conditions.

Maria Doutherd is a board-certified Psychiatric Mental Health Nurse Practitioner with over 15 years of nursing experience. She earned her Master of Science in Nursing as a PMHNP from Walden University and brings a strong medical background to her psychiatric practice.

Maria provides comprehensive psychiatric evaluations and medication management for children, adolescents, and adults. She treats anxiety disorders, major depressive disorder, ADHD, bipolar disorder, schizophrenia, and autism spectrum disorders, and takes a thoughtful, evidence-based approach to diagnosis and treatment.

She is known for her compassionate, patient-centered style and believes in collaborative care and shared decision-making. Maria prioritizes education, open communication, and individualized treatment plans that align with each patient’s goals, values, and overall well-being.