Happiness depends more on the inward disposition of mind than on outward circumstances.

- Benjamin Franklin

Our Maryland Psychiatric Staff

Bruce A. Kehr, M.D.

Bruce A. Kehr has served as Founder and President of Potomac Psychiatry since 1981.

Dr. Kehr is passionate about helping patients with anxiety, depression, obsessive compulsive disorder, life adjustment issues, and bipolar disorder. He treats adolescents, adults, and the elderly in psychotherapy, and with medication management when needed. Through his collective expertise and experience in business and psychiatry, he specializes in helping top business executives lead more balanced, symptom-free lives. He is also the author of Dr. Bruce’s Couch: Life Lessons at Potomac Psychiatry 

Washingtonian Magazine named Dr. Kehr as one of “Washington’s Top Doctors” in 2012 & 2014, after polling 7000 randomly selected physicians in the DC area, and asking them where they would send their family members for treatment. In 2013 Dr. Kehr was selected as a Top Geriatrician by the International Association of Healthcare Professionals and will appear in the renowned publication, The Leading Physicians of The World.  Dr. Kehr also serves on the Board of the Institute on Aging of the University of Pennsylvania, where he served as Chairman from 2006 to 2009, and was selected as one of the “100 Most Inspiring and Influential Leaders in the Life Sciences Industry,” by the readers and editors of PharmaVOICE in 2007. He was included in “Guide to America’s Top Psychiatrists,” 2008 Edition, published by the Consumers’ Research Council of America.

Dr. Kehr received training in psychotherapy at the Boston Psychoanalytic Institute, where he also completed his training psychoanalysis. A forensic consultant in neuropsychiatry and traumatic brain injury, Dr. Kehr is also the inventor of sixteen issued patents and five pending patents in the United States, Europe, Japan, and Canada, as well as issued and pending trademarks and service marks, in the field of medication adherence software, hardware and communications technologies.

Dr. Kehr is also a Senior Scholar, Department of Health Policy, at Jefferson Medical College. He has frequently lectured on the interface between executive coaching and psychiatry; the field of medication non-adherence, where he is recognized as an expert; and has lectured on neuropsychiatry aspects of traumatic brain injury. He received his BA from the University of Pennsylvania, followed by an MD from the Georgetown University School of Medicine. He is Board Certified by the American Board of Psychiatry and Neurology, and has been in practice since 1978.

(View complete curriculum vitae for Dr. Bruce Kehr)

Guillermo Portillo, M.D. 
Guillermo Portillo is a clinical psychiatrist who enjoys working with adults and teenagers age 14 and above, using a variety of psychotherapy techniques as well as medication management. Dr. Portillo believes that medication management works best in combination with psychotherapy. He is passionate about engaging the patient in a talk therapy approach that is integrative in nature-- drawing on interpersonal, cognitive-behavioral, and insight-oriented therapeutic modalities – to bring the best of each modality into the therapeutic relationship. He has extensive training in treating depression, bipolar disorder, anxiety disorders, post-traumatic stress disorder and addictions. His areas of special interest include emotional and identity development, multicultural issues, relationship difficulties and treating adults with coexisting medical problems. Dr. Portillo uses a biopsychosocial treatment approach; discovering and exploring the biological, psychological and social/environmental factors that have caused emotional distress; to formulate an accurate diagnosis and generate a treatment plan that is tailored to each individual patient. Additionally, Dr. Portillo is able to provide psychiatric care and consultation in both English and Spanish.
Dr. Portillo received his undergraduate degrees in Biology and Classics from Brown University. He went on to complete both his medical degree and psychiatry residency at Temple University. There, his psychotherapy training included long term instruction and supervision from multiple renowned psychiatrists at the Psychoanalytic Center of Philadelphia. He served as Chief Resident during this final year of psychiatric training and completed a forensic psychiatric fellowship at the University of Rochester.  Dr. Portillo currently has an academic appointment as an adjunct clinical faculty member at Temple University Hospital’s Department of Psychiatry and Behavioral Science where he has lectured on forensic and emergency psychiatry. He is Board Certified by the American Board of Psychiatry and Neurology in both Clinical Psychiatry and Forensic Psychiatry.
(View complete curriculum vitae for Guillermo Portillo, M.D.)

Walker Lyerly, IV, M.D.

Dr. Walker Lyerly, IV, Psychiatrist, Rockville MD

Walker Lyerly is a child, adolescent and adult psychiatrist who provides medication management and individual therapy to children, adolescents, and adults. He provides significant coordination of care with parents, pediatricians, and school counselors to optimize a child or adolescent’s treatment outcomes. Dr. Lyerly also provides medication management and psychotherapy services to adults.

As a gifted psychopharmacologist and psychotherapist, Dr. Lyerly blends these skills to treat patients ranging from those with simple adjustment problems to highly complex and challenging patients including those with rapid cycling bipolar disorder.

He received his undergraduate degree from Davidson College, where he graduated magna cum laude and Phi Beta Kappa, and his medical degree from Duke University Medical School. Dr. Lyerly is Board certified in Child, Adolescent and Adult Psychiatry, and has been in practice since1992.

 (View complete curriculum vitae for Dr. Walker Lyerly, IV)


Paul E. Glass, III, M.D., M.H.A

Paul Glass is an adult and geriatric psychiatrist who provides exceptional care in the areas of medication management and psychotherapy. Dr. Glass has extensive training in the treatment of a variety of psychiatric illnesses; including depression, anxiety, obsessive-compulsive disorder, post-traumatic stress disorder, ADHD, bipolar disorder, substance abuse, sexual addiction and anger management. 
He is a gifted psychotherapist and has completed a fellowship in psychoanalysis at the New York Psychoanalytic Institute. Dr. Glass has considerable psychopharmacologic experience treating adults and geriatric patients at a variety of settings throughout New York City. Additionally, Dr. Glass treats Obsessive Compulsive Disorder and other anxiety disorders such as Social Agoraphobia and Panic Disorder. In addition to medications, he offers the most effective form of therapy: exposure and response prevention therapy (ERT). He has a special interest in the evaluation and treatment of substance abuse disorders. His treatment approach is sophisticated and comprehensive, and he will work diligently to help you feel better. He is a highly compassionate doctor who puts his patients first, and he will do whatever it takes to help you reach your goals as quickly as possible.
He received his undergraduate degree from the University of Florida, where he graduated cum laude, and later went on to receive both his medical degree and a master’s degree in healthcare administration from the University of North Carolina at Chapel Hill. Dr. Glass received his psychiatry residency training at the top-ranked Mt Sinai School of Medicine in the heart of Manhattan. 
As evidence of his caring and compassionate approach to patients, Dr. Glass has worked extensively with the homeless in New York City, not only providing excellent care for their chronic mental illnesses, but also ensuring that they receive permanent housing and psychiatric treatment. Dr. Glass is not just a doctor; in his former life he worked as an emergency medical technician and as a manager of information systems in computer science. He was also a competitive cyclist in the greater Manhattan area while completing his residency.

(View complete curriculum vitae for Paul E. Glass, III, M.D., M.H.A.)


Barbara E. Kehr, LCSW 

Barbara E. Kehr, Psychotherapist, Rockville, MDBarbara E. Kehr is a psychotherapist who treats adults ranging in age from college students to senior citizens. She specializes in therapy with individuals and couples facing the challenges of infertility, and women suffering from post-partum depression. In addition Barbara treats mothers and daughters wishing to improve their relationships, and individuals and couples in marital crisis. She also treats people suffering from depression, anxiety, grief reactions, and job loss.

While specializing in the psychotherapy of loss, which includes death of a loved one, miscarriage, end of a close friendship, separation and divorce, and “empty nest syndrome;” Barbara also treats individuals faced with the challenge of becoming new parents, and balancing the demands of career and family life.

She received her undergraduate degree from Case Western Reserve University and graduate degree from Simmons School of Social Work, and has been in practice as a licensed clinical social worker since 1976.

(View complete curriculum vitae for Barbara E. Kehr, LCSW)


Laura H. Kushner, Ph.D. 

Laura Kushner is a clinical psychologist specializing in individual and group psychotherapy for adolescents, adults, and seniors. With an approach to therapy that is centered on developing a trusting, warm relationship with each of her clients, she is an expert at helping people with relationship problems, trauma, depression, anxiety, behavior problems, and ADHD. She is also interested in promoting healthy living habits, especially for those individuals and families trying to manage their eating habits and weight, including the evaluation and treatment of eating disorders.
Dr. Kushner has worked with people from a wide variety of backgrounds. She has extensive training in psychodynamic, interpersonal, cognitive behavioral (CBT), and humanistic modes of therapy. As a warm, enthusiastic and caring therapist, she brings hopeful, comforting, and empowering perspectives to any therapeutic issue, helping her clients create and maintain positive, fulfilling lives. She has worked in settings that have included private practice, college counseling centers, community mental health centers, and renowned research and teaching hospitals.
Because therapy is a process and not an endpoint, Laura seeks to fully understand her clients' reasons for seeking help. In this way, she treats her clients holistically and in context, as opposed to focusing solely on the troubling symptoms. As she and her clients progress through therapy together, she encourages her clients to explore how past experiences and interactions may contribute to the current problems. To do this, she guides her clients to uncover relevant patterns, feelings, and behaviors, fostering her clients' self-awareness in order to make more fulfilling and healthier choices.
Having grown up near D.C., Laura is familiar with the unique culture of the area, including the types of pressures that area residents are likely to encounter. She graduated Phi Beta Kappa from Johns Hopkins University with a B.A. in psychological and brain sciences and received her Ph.D. from American University in clinical psychology. Her interests include cooking international foods, travel, and running.
(View complete curriculum viate for Laura H. Kushner, Ph.D.)


Our offices are conveniently accessible from the following communities:

Maryland (MD):
Bethesda 20814 - Bethesda 20816 - Bethesda 20817 - Chevy Chase 20815 - Colesville 20904 - Cabin John 20815 - Glen Echo 20812 - Gaithersburg 20855 - Gaithersburg 20877- Gaithersburg 20878 - Gaithersburg 20879 - Garrett Park 20896 - Kensington 20895 - Montgomery Village 20886 - Olney 20830 - Olney 20832 - Potomac 20854 - Potomac 20859 - Rockville 20850 - Rockville 20852 - Rockville 20853 - Silver Spring 20903 - Silver Spring 20905 - Silver Spring 20906 - Silver Spring 20910 - Takoma Park 20912 - Wheaton 20902

Washington DC:
Crestwood 20011- North Capitol Hill 20002 - Cathedral Heights 20016 - American University Park 20016 - Columbia Heights 20010 - Mount Pleasant 20010 - Downtown 20036 - Dupont Circle 20009 - Logan Circle 20005- Adams Morgan 20009 - Chevy Chase 20015 - Georgetown 20007 - Cleveland Park 20008 - Foggy Bottom 20037 - Rock Creek Park - Woodley Park 20008 - Tenleytown 20016

Northern Virginia:
McLean 22101- McLean 22102 - McLean 22106 - Great Falls 22066 - Arlington 22201 - Arlington 22202 - Arlington 22203 - Arlington 22205 - Falls Church 22041 - Vienna 22181 - Alexandria 22314