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General Information

All rotations are typically four weeks in length. This is to assure students receive an optimal neurosurgical experience, with one week spent in each of the following areas: Tumor, Spine, Vascular/Functional, Pediatrics, or potentially at the Johns Hopkins Bayview Medical Center.

The most popular months for sub-internships are June, July, August, and September. If you wish to rotate during these months, early application is strongly encouraged.

All applications must be received no later than 2 months prior to the start date of your sub-internship. Example: if your desired time frame for a sub-internship is October 1-October 31st, your application and supporting documents need to be completed and returned by August 1st.

Completion of a visiting subinternship is not required to match in our program. Many of our current residents did not complete a visiting elective rotation with us. Although we will give your application every consideration, completion of a visiting subinternship does not automatically lead to an interview.

Before Your Elective:

Students enrolled in U.S. medical schools must have an NPI number before beginning a rotation. Please follow this link to apply for an NPI number if you do not have one already:

Once at website, select the link: “If you are a Health Care Provider, the National Provider Identifier (NPI) is your standard unique identifier”

You do not need an NPI number at the time of application, but will need it to be approved for a rotation. Please provide your NPI number to the Medical Training Programs Coordinator as soon as you receive it. If you have any further questions, please contact Jamie Hoffeberger (, Department of Neurosurgery Medical Training Programs Coordinator.

On Your First Day:

On your first day at Johns Hopkins, you will need to:

  1. Report to the Registrar’s Office to register for your elective. The Registrar is located in the Miller Research Building, 733 N. Broadway, Suite 147.
    Non-US citizens must first check in with the Office of International Services (OIS) before registration can be completed. Please bring all required materials with you when you report to the OIS as well as a letter of good standing from your school. Follow this link for the list of documents required by the OIS. It is helpful for the OIS Check-in Form to be completed prior to reporting for check-in. Their office is located on the 2nd floor of Reed Hall, 1620 McElderry Street, Baltimore, MD. OIS hours or operation are Monday - Thursday 8:30am - 12:00pm and 1:00pm - 5:00pm. The office is not open to the public on Fridays.
  2. After registration, obtain a Johns Hopkins Identification Badge from the I.D. Office, Harvey/Nelson Building, Room 108.
  3. Report to Sheikh Zayed Tower, Room 6126 to meet with Jamie Hoffberger, Medical Training Programs Administrator for the Department of Neurosurgery to:
    a) complete emergency contact information form
    b) obtain a swipe card for access to the Neurosurgery library and scrubs machine
    c) complete Eclipsys Access Form
    d) obtain access for scrubs
    e) complete training for access to EPR (electronic patient record system)
    f ) complete JHED ID authentication process
    g) have photo taken
  4. Meet with Dr. Timothy Witham, Co-Director, Neurosurgery Residency Program

On Your Last Day:

On the last day of your rotation, you will need to:

  1. Return all scrubs to the scrubs machine. Unreturned scrubs could impact availability for subsequent rotators and sub-interns. You will be charged a fee for the cost of replacement for scrubs checked out in your name that are not returned.
  2. Return in your swipe card, pager and Hopkins ID badge to Stacie Grant.
  3. Provide your evaluation form to Jamie Hoffberger, the Medical Training Programs Coordinator.

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