Search › Virginia › Clinical Informatics Physician
Mark Janczewski, MD, MPH
NPI 1124022843 · on the registry since 2005 · sole proprietor
Practice
- Address
- 425 S Payne St
Alexandria, VA 22314 - Phone
- (703) 994-7637
Additional practice sites
- 410 Government Ave Ste 1, Valparaiso, FL
Registry record
- Primary taxonomy
- Clinical Informatics Physician
2083C0008X
- Also registered as
- Preventive Medicine/Occupational Environmental Medicine Physician
Family Medicine Physician
Aerospace Medicine Physician - Licence states on file
- VA
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2025-09-03
Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Virginia