Our Team of Pychiatrists
Our growing team of psychiatrists, psychologists, and therapists offer a wide range of assessment and treatment services, including counseling/therapy(individual, family, marriage, and group), testing (psychological and neuropsychological), and medication management. Sterling Behavioral Health Services welcomes persons with diverse backgrounds and/or persons speaking Spanish and/or other languages.

Dr. David Band is the Medical Director and Owner of Sterling Behavioral Health Services. He grew up in suburban Philadelphia and received his undergraduate degree in Environmental Biology from the University of Pennsylvania in 1975. After working for one year, including a summer as a Park Ranger, he attended the George Washington University Medical School and graduated in 1980. His Flexible Medical Internship was completed in Boston in 1981, and his Psychiatric Residency at the National Institute of Mental Health - St. Elizabeths Hospital, in Washington, D.C., was completed in 1984. Dr. Band was commissioned as an officer in the U.S. Public Health Service in 1980 and served on active duty for over 20 years. During that time, he worked on the Navajo Reservation in a very rural traditional setting and then gained extensive inpatient and outpatient experience, both clinical and administrative, in an urban setting with patients diagnosed with a full range of psychiatric illnesses. During his last six years with the USPHS, Dr. Band ran a community-based treatment program in Washington, D.C. Upon leaving the USPHS, he spent 15 months as the Medical Director of an adolescent residential treatment hospital before co-founding Sterling Behavioral Health Services. Dr. Band specializes in treating children and adolescents, including angry and/or depressed teenagers. His areas of clinical expertise include ADHD, mood and anxiety disorders, school problems, obsessive-compulsive disorder, court-ordered psychiatric evaluations, and conduct and behavioral issues, including those associated with pervasive developmental disorders such as Autism and Asperger's Syndrome.
David Band, M.D.

Dr. Courtney Subudhi, DNP, CNM, FNP/PMHNP
You can’t pour from an empty cup. Taking care of your mental health is just as important as caring for your body, and I am here to help you feel your best.
I’m Dr. Courtney Subudhi, a psychiatric mental-health nurse practitioner. With nearly two decades in healthcare—including extensive experience as a certified nurse midwife, family nurse practitioner, and psychiatric-mental health nurse practitioner—I am passionate about improving access to mental health care for all.
I provide compassionate, individualized care to adolescents through adults, treating conditions such as anxiety, depression, trauma, and mood disorders, and I specialize in perinatal mental health. My career has been shaped by the privilege of working alongside families, where I strive to create a safe, non-judgmental space where your voice is heard. My holistic approach blends complementary medicine, medications, lifestyle changes, and collaboration with your healthcare team to support your overall well-being.
As a triple board-certified clinician with a Doctor of Nursing Practice and faculty appointments teaching future nurse practitioners, I am dedicated to empowering you with knowledge and options so you can be an active participant in your care. Together, we can build a plan that supports your mental and physical health at every stage of life.

Julie Valdes is a psychiatric nurse practitioner who is passionate about psychiatry and has been involved in mental health for over 10 years. She is well equipped and uses evidenced-based treatment for patients with mental health issues across their lifespan. Her priority is to focus on your mental health and wellbeing where you feel heard and understood.
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She treats patients as young as 6
Julie Valdes, ARNP-PMHNP

Eden Shumbulo, PMHNP
Eden is a Psychiatric Mental Health Nurse Practitioner-board certified, who has a great interest in holistic healthcare. She believes that body, mind, and the spirit all work together for one’s overall health, and mental health plays a big role in the process.
Eden has a Bachelor’s of Nursing from Shenandoah University, a Masters in Family Nurse Practitioner from Samuel Merritt University, and a Masters in Psychiatric Mental Health Nurse Practitioner from Walden University. As a nurse as well as a healthcare provider
Eden has worked in different settings, and different demographics, including pediatric and geriatric populations, which has given her a multitude of experience in delivering comprehensive care. Eden believes in open communication, honesty, and accountability with her clients, and is empowered to break the stigma towards mental health/healthcare in our community.
When it comes to what Eden believes is the best recipe for success and upward movement in mental health, she values a holistic and well-rounded approach as such: educating, guiding, and assisting patients within her expertise. As a prescriber, Eden strongly believes and values both medication and psychotherapy working in collaboration for the best mental healthcare of clients. She is constantly seeking the best evidenced care guidelines and implements in care providence.
Eden enjoys being outside in nature, hiking, water sports, and playing with nieces and nephews as her favorite leisure time activities.