Therapy Spaces Designed for Healing

""Started my therapy practice here, which ended up being perfect. The flexibility it provided for my hybrid set-up, during Covid too, was great. Staff is super friendly and helpful, location is great, and my clients always felt very welcome. Now moved on to having a full time office space down the street, but look back fondly at my time there""

— Tim van den Broek

""I love the set-up of OSI, and I appreciate the spaces that are available to provide private therapeutic services to clients. I started my private practice last year and needed a part-time office space to suit me and my clients' needs. This space is perfect! I also appreciate the community. Mumbi is an amazing leader, and all of the staff are wonderful. They are so helpful, kind, and professional. I feel blessed that I found this location in DC.""

— Simone H

"“I retired from my full time solo private practice as a psychologist but wanted to have office hours on a part time basis. OSI and I worked out an office service plan that fit my needs perfectly, at a very reasonable cost. I have been a very satisfied customer with their services and would recommend OSI to anyone needing part time or permanent office services.” "

— Joseph Quintano Ed. D. Psychologist

""OSI has been instrumental in growing my business from a few evening a week to a full time thriving practice. The front desk is approachable and helpful, always willing to help me when I need some administrative support. Mumbi, the office manager, is a joy. She has consistently been attentive to the needs of my practice and invested in helping me establish systems that keep my business working seamlessly. The variety of services OSI has offered me has been invaluable. The office suite is safe and secured at all times of the day, mail is delivered in a timely fashion, and my account is charged automatically on a monthly basis. Even when I am out of the office, I am notified when a package arrives for me. As a sole proprietor, I lack the luxury and assistance of an HR department, IT team, and an administrative specialist. Mumbi, Joseph, Jack, and the front desk have all stepped up at various times over the past two years to ensure I have an office space that works on behalf of me and the people I serve." "

— Christina Moynihan, MSW, LICSW

""OSI has been instrumental in building my psychology practice for nearly 10 years. I started with hourly office use; graduated to a shared office space; and for the past few years have my own private full-time office. The quality and array of services along with the flexibility of plans are invaluable.""

— Diane Kern, Ph.D. Licensed Psychologist

"As a clinical psychologist, I can say that OSI provides exactly what I need . They provide great locations, professional office suites, flexibility, dependability, good friendly professional service with individualized attention, and the best rates in Washington, DC. This is why I have been with them for over 20 years.”"

— Marcus M. Mottley, Ph.D. Executive Coach & Organizational Consultant