Hopkins Access Line (HAL) 1-800-765-5447
(Continental United States)
410-955-9444
(Baltimore area and international calls) The Hopkins Access Line (HAL) is a referral service provided by Johns Hopkins Medicine. HAL's toll-free number - operational 24 hours a day, seven days a week - was created in response to the growing needs of physicians to reach Hopkins physicians quickly. HAL gives practicing physicians and faculty the opportunity to assist one another in the diagnosis and care of patients. > More about Johns Hopkins Services for Referring Physicians | 
