Our Providers

W. Ronald Gaertner, M.D.,L.F.A.P.A.,A.B.A.M.
Dr. Gaertner

Dr. Gaertner formed Gaertner Psychiatric PC in 2013 to provide outpatient services to the Fredericksburg, VA and Richmond, VA areas. He also provides inpatient services at Mary Washington Hospital in Fredericksburg, VA.  In addition to his outpatient practice, he has been the Medical Director at Snowden at Fredericksburg and Behavioral Health Services Medical Director for Mary Washington Hospital since 2007.  Previously while in private practice in Richmond, VA and he served as the Behavioral Health Services Regional System Director for Bon Secours Richmond Health System and the Medical Director for Outpatient Substance Abuse for VCU Health Systems, MCV Physicians in Richmond.  He is also the Medical Director of Substance Abuse Services for FCCR Rehabilitation Services in Richmond.

Dr. Gaertner completed his medical degree at Louisiana State School of Medicine and his psychiatric residency at Ochsner Clinic in New Orleans, LA.  He also completed a fellowship in the study of autistic disorders.  Dr. Gaertner is board certified in both psychiatry and addictionology.  


Rajalla Prewitt, M.D.

prewitt pic

Dr. Prewitt is a Board Certified Adult, Child and Adolescent Psychiatrist with 13 years of experience in various clinical settings including inpatient mental health units, outpatient treatment and consultation liaison. She received her medical degree from the Ohio State University of Medicine and Adult residency training at the University of Cincinnati as well as fellowship training in Child and Adolescent Psychiatry at Children’s Hospital of Cincinnati, where she served as chief fellow. She began her professional career with the Center For Family Guidance in New Jersey and held various administrative positions as the Women’s Medical Director, Adolescent Medical Director at Friends Hospital as wells as the Medical Director of Behavioral Health At South Jersey Health Care. She currently serves as a Staff Psychiatrist at Mary Washington Hospital and provides outpatient medication management treatment for Adults, Children and Adolescents at Gaertner Psychiatric. She enjoys spending time with her family, hiking and training for the next half marathon.


Partam Manalai, M.D.

Dr ManalaiDr. Manalai completed his psychiatric residency training in a unique program, Saint Elizabeths Hospital Psychiatry Residency Training Program; heavily influenced by psychodynamic therapeutic approaches. It is argued that today’s “medication only” model of psychiatry may be more efficient but this efficiency comes at the cost of underestimating the complex and multifaceted psychodynamic underpinning mechanisms of psychiatric phenomena. Dr. Manalai advocates for integrating psychotropic medications with psychotherapy, the combination of the two modalities (psychotherapy and psychotropic medications) is more beneficial to individuals suffering from a wide ranges of psychiatric disorders than either one of these modalities alone. Dr. Manalai’s philosophy is to reduce the time that patients suffer by employing all evidence-based measures that accelerate patients’ recovery. Dr. Manalai is board certified in general psychiatry and addiction medicine. Dr. Manalai’s research interests include understanding public psychiatric systems to improve quality of life especially for those living with severe mental illnesses. He is also interested in cognition, suicidology, and developing new biomedical technologies designed for patient-centered individualized treatments, improving diagnostic accuracy, and predicting better outcome of psychiatric disorders.  Dr. Manalai sees patients at Mary Washington Hospital (Snowden).

Pamela R. Faulkner, R.N.C.S.,A.N.P., B.C.
pampicPamela R. Faulkner, RNCS, ANP, BC was employed at the VCU Medical Center as an RN, nurse manager, clinical nurse specialist, and adult nurse practitioner for 23 years before leaving for private practice in psychiatry.  She became interested in brain function and mental illness during her years working in the Neuroscience ICU, Neurosurgery floor, and the Brain Injury Rehabilitation unit.  In 1987 Pam achieved her master’s degree in Adult Psychiatric-Mental Health nursing from the Virginia Commonwealth University. Later she obtained a post-master’s certificate as an adult nurse practitioner.  She has worked as a nurse practitioner in Psychiatry for 9 years with an emphasis on women’s issues and healthy living.  She enjoys helping individuals with a variety of challenges including depression, anxiety, adult autism disorder, bipolar disorder, and ADD/ADHD.

In her spare time, she is a member of the Sportsbackers’ Marathon Training Team and Richmond Road Runners.  She loves to garden and birdwatch in her backyard. She is married and has one adult son. Pam especially enjoys her three cats and hound dog, Willow.


Elizabeth Wheatley, D.N.P.,F.N.P.-C., P.M.H.N.P.-B.C .

Eliz Wheatley picElizabeth has over 38 years experience in healthcare. Her Bachelor’s degree is from Florida State University. She has a Masters in Human Relations from Liberty University with both a Masters in Nursing and Post Masters certificate from University of Virginia. She is board certified as a Family Nurse Practitioner through the American Association of Nurse Practitioners (AANP) and Family Psychiatric/Mental Health Nurse Practitioner through American Nurses Credentialing Center (ANCC). Her Doctor of Nursing Practice is from University of South Alabama with a doctoral project entitled: Assessment for Post-traumatic Stress Disorder (PTSD): Diagnosis, Interventions, and Length of Stay Quality Improvement Initiative.

Dr. Wheatley has nurse practitioner practice experience in family practice as well as psychiatric care. Her mental health practice includes an interest in individual experience and impact of trauma as well as church education regarding trauma impact and support. Elizabeth’s practice philosophy is a partnership with patients from a holistic perspective. This includes medical, psychosocial, and spiritual elements as needed by individual patients.

Professional memberships include: Sigma Theta Tau, Beta Kappa Chapter; American Association of Nurse Practitioners; Virginia Council of Nurse Practitioners; and International Society for Traumatic Stress Studies.

Outside her NP responsibilities, Elizabeth enjoys time with her family, gardening, fishing, and assorted creative activities.


Christopher Wheatley,  P.M.H.N.P.-B.C.


Christopher Wheatley, PMHNP-BC is a Psychiatric Nurse Practitioner specializing in services for children, adolescents and adults. He discovered his passion for helping those with psychiatric conditions early in his career while working at the Northern Virginia Mental Health Institute in 2009.  Since then, he has worked extensively with individuals in both outpatient and inpatient settings and has taught topics related to mental health at Georgetown University, where is he adjunct faculty. He has most recently focused on the care of children and adolescents with psychiatric disorders and believes strongly that the foundation of good care is based in the relationship between the patient and healthcare provider.

Christopher was raised in Northern Virginia, where he now lives with his family. He completed his undergraduate studies at Old Dominion University and graduate studies at the University of Virginia. He enjoys travelling, hiking and cycling in his spare time.


Sue Duke, M.S.N.,A.N.P.


Sue is an Adult Nurse Practitioner with over 30 years of psychiatric experience.  Upon receiving her Bachelor’s Degree in Nursing from VCU and her RN certification, she cared for patients in a variety of psychiatric inpatient and outpatient settings before obtaining her Master’s Degree in Nursing from James Madison University in 2009.   As a nurse practitioner in a Richmond psychiatric office for five years, she independently managed a range of mental health conditions, including mood, anxiety and psychotic disorders.   She most recently worked on the inpatient psychiatric unit at Virginia Commonwealth University Medical Center, specializing in acute schizophrenia management.  Sue’s primary interests include mood, anxiety and psychotic disorders.  She uses a holistic approach to integrate behavioral and medical health treatment concerns.  Sue enjoys camping, hiking, kayaking and reading historical biographies as well as spending time with her two granddogs, Ellie and Nacho.  Sue will be seeing outpatients in the Richmond office.


Vicki McKay, N.P.

VICKI MCKAY 9-4-2015

Victoria McKay graduated from nursing school in 1982 and was awarded her master’s degree from Catholic University in 1989 with majors in Nursing Education and Pediatrics. She has been a pediatric nurse practitioner for 25 years. She graduated from Rush University in 2008 with a post-masters certification as a family psychiatric nurse practitioner and has practiced exclusively in psychiatry since then. In 2009 she received a second post masters degree as a Clinical Nurse Specialist in psychiatry.

Ms. McKay has experience in the diagnosis and medication management of children,adolescents and adults needing evaluation and treatment for mental health concerns. Ms. McKay only sees patients at Mary Washington Hospital (Snowden).


Crystal Miller-Williams, N.P.


Guerlyne Henson, N.P.     

Guerlyne Henson is a Family nurse practitioner who specializes in general inpatient and outpatient setting. She is from Queens, NY, completed her undergrad in Charlotte, N.C at Queens University then went to Walden University in Minneapolis, MN where she graduated as a Family Nurse Practioner. As a nurse practitioner in Richmond, VA she works with the Veteran population managing chronic disease-processes and manages a variety of psychiatric inpatients at Snowden facility performing H&P and consults for concern of certain diagnosis patient may have in psychiatric facility. Guerlyne is a lifelong learner and is always eager to learn new information while incorporating a holistic approach to integrate behavioral and medical health management. Guerlyne is married with 4 kids (22, 13, 10, and 9), when she is not working, she enjoys listening to her audio book while exercising then goes home and watch a good lifetime movie, SYFY and Netflix binge.