9300 SE 91st Avenue, Suite 400, Happy Valley, OR 97086

Meet Our Team

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Dr. Joseph P Stapleton is an Interventional Pain Specialist who is board certified by the American Board of Pain Medicine in Pain Medicine and by the American Board of Anesthesiology in Anesthesia.  He has practiced medicine in Portland for over 38 years and is a member of the Spinal Intervention Society, North America Neuromodulation Society and American Society of Interventional Pain Practitioners.

Danilyn Allen, FNP is a nurse practitioner with a wide range of experience and a passion for helping patients in pain. She has a Master of Science degree in Nursing and is board certified by the American Academy of Nurse Practitioners.

David Klarberg, FNP is a nurse practitioner who demonstrates compassion and an understanding for patients who experience pain.  He practices a patient-centered approach for helping individuals develop an informed comprehensive pain management plan.  He has a Master of Science degree in Nursing and is board certified by the American Nurses Credentialing Center

Anup Varghese, FNP holds a Master’s Degree in Nursing and is Board-Certified by the American Nurses Credentialing Center. He has a passion for taking care of those suffering from pain. Pain interferes with the quality of life, and Anup believes in exploring treatment modalities with his patients. In his spare time, Anup enjoys exercising, watching sports, traveling, and spending time with his family.

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