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Meet Dr. Hemmy

About me:

I am a licensed clinical psychologist in the states of California, Maryland, and Ohio. I completed my dual doctorates in Clinical Psychology (PsyD) and Public Health, Preventive Care (DrPH) from Loma Linda University. I also have a masters degree in marriage and family therapy. After earning my degrees and completing my clinical internship at the Cincinnati VAMC, I received additional postdoctoral training at the Washington DC VAMC, where I later worked as an integrated health psychologist.  I have provided individual, couples, family, and group therapy since 2007. Whether you're facing challenges in your personal life, work, or relationship, I am here to support you. 


In addition to my clinical and administrative experiences, I am also a published scientist practitioner with extensive experience in providing national and local presentation in the areas of health psychology, substance use disorder, and veteran health. Selected publications are available for review and download.


In addition to this private practice, I also manage a large program that helps Veterans struggling with problematic substance use, chronic health conditions, and co-morbid mental health diagnoses. I also serve as the National Coordinator for the HIV and Liver Disease Psychology Postdoctoral Fellowship. If you are a veteran, I will provide information on how you can obtain mental health treatment through the VA. 

Selected Publications:

Hyatt, C. S., Sleep, C. E., Hemmy Asamsama, O., & Reger, M. A. (2023). Surveying VA mental

health service providers on experiences working with veterans with antagonistic clinical

presentations. Psychological Services. 10.1037/ser0000782. Advance online publication.

https://doi.org/10.1037/ser0000782


Haney, A., Byllesby, B., & Hemmy Asamsama, O. (2023). Emotion regulation and substance

use risk and protective factors in a veteran residential treatment. Substance Use &

Misuse. doi: 10.1080/10826084.2023.2196575


Hemmy Asamsama, O., Miller, S., Silvestri, M., Krondilou, K., & Bonanno, C. (2019). Impact of a tobacco and recreational nicotine-free policy on programmatic and patient-level outcomes within a residential substance use disorder treatment program. Journal of Substance Abuse Treatment, 109, 44-49. 


Hemmy Asamsama, O., Squires, L. E., Tessema, A, Hall, K., Williams, R., & Benator, B. (2017). HIV Nurse Navigation: Charting the course to improve retention in care and HIV virologic suppression. Journal of the International Association of providers of AIDS Care, 16(6) 603-607. doi: 10.1177/2325957417732835

Paper to be a part of the CDC's Compendium of Evidence-based HIV Behavioral Interventions 


Hemmy Asamsama, O.,Dickstein, B., & Chard, K. (2015). Do scores on the Beck Depression Inventory-II predict outcome in Cognitive Processing Therapy? Psychological Trauma: Theory, Research, Practice, and Policy. Advance online publication. http://dx.doi.org/10.1037/tra0000034


Hemmy Asamsama, O., Lee, J. W., Morton, K. R., & Tonstad, S. (2015). Bidirectional longitudinal study of type 2 diabetes and depression symptoms in Black and White church going adults.Journal of Diabetes & Metabolic Disorders, 14(25). doi: 10.1186/s40200-015-0150-5


Hemmy Asamsama, O., Lee, J. W., Morton, K. R., & Tonstad, S. (2014). Validity of type 2 diabetes self-reports among Black and White church going adults. International Journal of Health Sciences and Research, 4(12), 286-293. 


Hemmy Asamsama, O., Huang, L., Nelson, B., Chen, C., Huang, L., Kwon, & Kadoma, N. (2014). A multicountry study of cross-cultural differences in psychological wellness of adolescents. International Journal of School & Educational Psychology, 2(1), 64-70.doi: 10.1080/21683603.2013.855153 


Selected Additional Trainings:

Motivational Interviewing Workshop, August 2016

Motivational Interviewing with Jonathan L. Steinberg, PhD 

(MINT member), Spring 2014

Cognitive Processing Therapy (evidenced based trauma treatment) with Jennifer Lewis, PhD (National Trainer), 2013 – 2014. 

CPT certified provider

Gestalt Associates Training Los Angeles with 

Bob and Rita Resnick, PhDs, 2012 – 2013

Dialectical Behavior Therapy Symposium with 

Marsha Linehan, PhD, March 2011

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