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Meet Our Faculty

Griffin Memorial Hospital


Clayton Morris, M.D.

GMH Medical Director, COCMHC Medical Director, GMH Residency Training Program Director
Professor of Psychiatry

Medical School: University of Oklahoma, College of Medicine
Residency: University of Oklahoma, Department of Psychiatry

Dr. Morris is the Medical Director and Residency Director at Griffin Memorial Hospital. He is also the Medical Director of Central Oklahoma Mental Health Center. He is also involved in opiate overdose prevention, a naloxone initiative. He completed the Oklahoma Society for Psychoanalytic Studies year of training in 2009 and also maintains a private therapy practice.

Stan Ardoin, M.D.

Chairman of Psychiatry Residency Training Program
Professor of Psychiatry

Medical School: University of Oklahoma College of Medicine
Residency: Griffin Memorial Hospital

Dr. Ardoin received his M.D. from OUHSC in 1990. He completed the Griffin Memorial Hospital Psychiatric Residency Program in 1994. He was board certified in psychiatry in 1995 and re-certified in 2005. Over the years since 1995, has held clinical and leadership roles at a number of state facilities. Currently, he provides clinical services at Griffin Memorial Hospital, Central Oklahoma Community Mental Health Center and is the acting chair of the GMH Residency Program. He also maintains a part-time private practice. Interests include Adult Psychiatry, Forensic Psychiatry, resident training and teaching. 

Muhammad Ishaq, M.D.

Associate Professor

Medical School: Punjab Medical College
Residency: Griffin Memorial Hospital

Dr. Ishaq is involved in training of the residents on the inpatient unit. In addition to providing clinical services at GMH, he also provides Consult & Liaison services at Norman Regional Hospital.

Najma Hamdani, M.D. MHA

Associate Professor

Education:

  • Rawalpindi Medical College, Rawalpindi, Pakistan, MBBS
  • OU College of Public Health, OKC, Oklahoma, Masters in Health Administration and Policy Analysis

Bio:

Dr. Hamdani completed her medical education in Pakistan and received her health administration masters from OU college of public health. Prior to her residency training at Griffin Memorial hospital, she worked at the Oklahoma State Department of Health as a regional immunization manager implementing a federal immunization program in Oklahoma. After completing her residency training at Griffin Memorial Hospital, she became the medical director at COCMHC in Norman Oklahoma for 3 years before pursuing her own private practice in Norman, Oklahoma. Over the past years, she has provided telepsychiatry services for Stillwater medical center until 2024 and telepsychiatry services Camino Real community health service in Texas for the substance abuse services, particularly the medication assisted treatment for opioid addiction. She is also providing services for the PACT team in Norman which operates under COCMHC.

Peer Reviewed Publications/Presentations:

  • How to Help Employees With ADHD Address the Challenges of Remote Work Leaders can use these strate- gies to help workers stay focused and productive in virtual work settings, whether they’ve been diagnosed with ADHD or not. Maria Hamdani, Najma Hamdani, and Maitraye Das June 22, 2023 (Hamdani et al.)
  • Hamdani, M.R. & Hamdani, N. Improving Job Experiences of Individuals with ASD. 2019 Academy of Management Annual Meeting in Boston, Massachusetts.
  • Hamdani, M.R. & Hamdani, N. Conflict Management at Work. 2018 60th Midwest Academy of Management Conference in St Louis, Missouri..
  • A 70-Year-Old with New-Onset Auditory and Visual Hallucination Najma Hamdani, MD, MHA; Afia Sadiq, MD; Merlyn Scoggin, MD, Psychiatric Annals. 2017;47(8):395-397
  • Hamadani M., Tfayli A., Sethi S., Awab A., Hamdani N.: “Granulocytic sarcoma manifesting as multiple skeletal lesions.” Am J Med Sci. 2005 September; 330(3):139-143.

 

Authored Publications:

  • “Next pandemic will be in mental health” Kevin MD - March 2020
  • “Stop telling doctors what to do” Kevin MD - November 2019
  • “Get rid of the guilt. You matter as a physician” Kevin MD - October 2019

 

Professional Affiliations:

  • Member American Diplomate Board of Psychiatry and Neurology (Sep 2016- Present)
  • Oklahoma State Medical Association (Sep 2020 - Present)

Eric Reynolds, M.D., J.D.

Associate Professor

Education:

  • Medical School: University of Oklahoma School of Community Medicine
  • Residency: Griffin Memorial Hospital

Bio:

Dr. Reynolds received his M.D. from the OU-SCM in 2020 followed by completion of a psychiatry residency at Griffin Memorial Hospital in 2024. Prior to entering into medicine, he completed his J.D. at the University of Tulsa College of Law in 2011 where he focused on immigration law and criminal defense. Dr. Reynolds is actively involved with the Academy of Consult-Liaison Psychiatry and often attends legislative advocacy events with the Oklahoma Psychiatric Physicians Association and the Oklahoma State Medical Association. He currently also works with Lifestance Health, a private psychiatric clinic in Moore, and volunteers monthly for Manos Juntas, a free primary care clinic in Oklahoma City.

Gloria Martz, DO

Associate Program Director for GMH Psychiatry Residency Program

Medical School: Oklahoma State University Center for Health Sciences
Residency: Griffin Memorial Hospital Residency Program

Dr. Martz completed her psychiatric residency training from Griffin Memorial Hospital in 2017. Since then, she has worked in outpatient community mental health and telemedicine. Her practice focuses on addiction treatment and severe mental illness. She is currently a psychiatrist for the COCMHC PACT team and maintains an outpatient telemedicine practice. She also serves as an associate program director for the GMH psychiatry residency program and enjoys teaching residents and medical students.

Children's Recovery Center


Nathan Davis, M.D.

Medical Director at Children's Recovery Center
Professor of Psychiatry

Medical School: University of Oklahoma College of Medicine
Residency: University of Oklahoma Department of Psychiatry
Child-Adolescent Fellowship at University of Oklahoma

Dr. Davis is the Director of the Crisis Services and Male Adolescent Residential Care Program. He is involved with training of the residents on the crisis adolescent unit.

Central Oklahoma Community Mental Health Center (COCMHC)


Donald W. Simpson II, MD, MBA

Associate Program Director for GMH Psychiatry Residency Program


Medical School: Medical University of the Americas
Business School: Davenport University
Residency: General Psychiatry: Griffin Memorial Hospital – Norman, OK
Fellowship: Child and Adolescent Psychiatry: Rush University – Chicago, IL

Dr. Simpson completed his General Psychiatry Residency at Griffin Memorial Hospital and his Child and Adolescent Psychiatry Fellowship at Rush University in Chicago, IL. He is dual board certified in General Psychiatry and Child and Adolescent Psychiatry by the American Board of Psychiatry and Neurology. He has been an Associate Program Director at Griffin Memorial Hospital since 2020. He currently works with Central Oklahoma Community Mental Health Center treating patients of all ages. He is the Child and Adolescent Psychiatry Outpatient PGY 3 supervisor and teaches a variety of didactics to residents of all training levels.  

Linta Abraham, MD

Medical School: Ross University, School of Medicine
Residency: Griffin Memorial Hospital

Dr. Abraham is originally from Seattle, Washington and moved to Oklahoma in 2011 to join the GMH Residency Program. After completion of Residency Program and ABPN certification in 2015, she chose to remain in Oklahoma, has worked for several agencies under ODMHSAS. She has experience working in the role of Medical Director, Psychiatrist for inpatient units & outpatient clinics in addition to supervising Residents & NPs. Her interest is in Adult Psychiatry, primarily PACT and offering continuity of care through the outpatient clinic.

Administration


Laura Verser

Residency Program Coordinator

Rett Norman

Residency Program Coordinator

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