Dr. Daniel F. O\'Neill, MD, MBA, AAHIVMs

Media Releases

Get to know Internist Dr. Daniel F. O’Neill, who serves patients in Portland, Oregon.

Dr. O’Neill is a board-certified internist providing general primary care to adults, with a special focus on HIV management, LGBTQ+ care, transgender health, and addiction medicine. He is in practice with One Medical in Portland, Oregon at the Pearl District Office. 

Dr. O’Neill uses a collaborative approach, working with patients through shared decision-making to achieve their health goals and to aim for the peak patient experience. He views the doctor-patient relationship as an opportunity for mutual learning and growth along the path to better health, guided by strong and up-to-date clinical evidence. He expects to learn from his patients and their unique life experiences. 

Pertaining to his educational background, Dr. O’Neill earned his medical degree from the George Washington University School of Medicine in 2013. Thereafter, he went on to complete his residency in internal medicine at both the George Washington University Hospital and Virginia Mason Medical Center in Seattle. Following a residency in 2016, he went on to practice for several years as a primary care physician and clinical lead at Neighborhood Health Center, a federally qualified community health center, serving several locations in the Portland area. He also holds a Master of Business Administration degree in biotechnology enterprise from the Indiana University Kelley School of Business.

Dr. O’Neill is nationally recognized as an American Academy of HIV Medicine Specialist (AAHIVS) and is board-certified in internal medicine by the American Board of Internal Medicine, a physician-led, non-profit, independent evaluation organization driven by doctors who want to achieve higher standards for better care in a rapidly changing world. He also has his X-waiver to prescribe buprenorphine for medication-assisted treatment of opioid use disorder. 

In addition, Dr. O’Neill is a National Health Service Corps Scholar, a 2011 Point Foundation Scholar, as well as a member of both the American College of Physicians and the World Professional Association for Transgender Health. Since 2000, he has been actively engaged in numerous HIV/AIDS organizations and has trained in multiple LGBTQ+ health private practices and clinics, such as Whitman-Walker Health in Washington, DC. He is currently on the Junior Board of Cascade AIDS Project, participates in AIDS LifeCycle, and volunteers for Portland Street Medicine. 

To stay healthy and happy, he enjoys cycling, running, camping, playing the piano, and spending time exploring Oregon with his partner, David.

Recommended Articles

• How is Bronchitis Treated?

  Bronchitis, the condition in which the bronchial tubes are inflamed, is classified into two main types – acute and chronic bronchitis. Acute bronchitis often goes away after one to two weeks, while chronic bronchitis may recur and remain for months on end. Viruses cause acute bronchitis, while...

• E. coli and Urinary Tract Infections

  What is a urinary tract infection?The main function of the urinary system is to get rid of waste, maintain the body’s water balance, and regulate electrolytes. Its function starts with the kidneys, the organ that filter blood to produce urine, which is composed of extra fluid and wastes. Before...

• What are the Types of Anemia and What Increases Risk?

  Blood is the lifeline of the body. It performs various functions, from defending against infections and viruses to transporting nutrients and oxygen to all parts of the body. The blood is made up of various components, i.e., red blood cells, white blood cells, plasma, and platelets. Each of these...

• What Are the Symptoms and Treatments for Bronchitis?

  Bronchitis, or the inflammation of the bronchial tubes, affects the amount of oxygen reaching the lungs. Inflammation of the lining of the bronchial tubes causes phlegm build up in the airways. Coughing spells and breathlessness are characteristics of this condition. Bronchitis is divided into two...

• What Are the Different Types of Croup?

  Croup is a viral infection of the upper respiratory tract which involves the larynx and trachea, both of which connect the mouth to the upper part of the lungs. This condition causes an obstruction in the airway, thus making it difficult to breathe. The most common characteristic of croup is a...

• Femoral Hernia: Get the Facts

  Our human bodies are a complex network of nerves, blood vessels, muscles, and visceral organs. While our skin is the outermost layer holding everything together, on the inside, it is a network of strong muscle fibers that hold all our internal organs in place. A hernia occurs when there is a weak...