A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
Learn more about Dr. Sarah Janssen:
View the full profile to get information on:
- What's important to you
View full profile
be the first!
Specialties & Research
Dr. Sarah Janssen, MD, PHD, MPH is board certified in Occupational Medicine.
Education & Awards
Dr. Janssen graduated from University of Illinois at Chicago.
Similar doctors nearby
- Additional Information
- Where does Dr. Sarah J. Janssen practice?
Dr. Sarah Janssen practices Occupational Medicine and Preventive Medicine/Occupational Environmental Medicine near San Francisco, CA.
See San Francisco Preventive Medicine Specialists.