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Online Programs for Applied Learning

The Johns Hopkins Bloomberg School of Public Health offers fully online, part-time master’s degree and certificate programs, designed for working professionals. Our Online Programs for Applied Learning (OPAL) focus on emergent industry sectors that have a resounding need for highly skilled professionals.

Master of Applied Science Programs

Certificate Programs

Key Benefits of Online Programs for Applied Learning (OPAL)

The OPAL portfolio of degree and certificate programs are appealing to professionals with backgrounds in a broad range of public health and health-related fields. For detailed admissions requirements for each program, including any minimum length of work experience, please visit our OPAL Admissions page.

Hear from Our Alumni




Live Virtual Open House events were held for our programs in March 2020 and fall 2019. Please click the links below to view recordings of these sessions:

    Please contact us at if you have any questions about these events.


Public Health in Action

In May 2016, the JHSPH convocation speaker was Dr. Mona Hanna-Attisha, a pediatrician in Flint, MI who was at the center of the lead water contamination investigation. In her speech, she discussed the importance of effectively utilizing research and analytical tools, to address public health questions and crises. You can watch a portion of her speech by clicking the image below.


Get In Touch

We're happy to help as you plan this important phase of your education. Request more information or call us at 844-379-1319 to speak with an admissions officer. You can also reach us via email at


OPAL Program Office

Director, Online Programs for Applied Learning 
Elizabeth Topper Golub, PhD, MEd, MPH
Responsible for the management and oversight of all OPAL academic programs.

Academic Program Manager
Christina Potter, MBA
Oversees operations of academic programs in OPAL. Liaison between students, faculty, and administrative offices.

Academic Program Coordinator
Natalya Clark
Provides administrative support to OPAL students and faculty.

  • Hours: 8:30 a.m. to 5:00 p.m. ET, Monday through Friday
  • Email:
  • Phone: (443) 287-3082


If you are ready to apply to one of the OPAL MAS or Certificate programs now, click here!