Whalio Doctors

NPI 1124022843

Mark George Janczewski, MDMPH

Practitioner Clinical Informatics Physician Alexandria, VA

Practice location

Address
425 S Payne St, Alexandria, VA 22314-5944
Phone
(703) 994-7637

Registered specialties (4)

Clinical Informatics Physician Primary
Allopathic & Osteopathic Physicians Taxonomy 2083C0008X Licence 0101041106 (VA)
Preventive Medicine/Occupational Environmental Medicine Physician
Allopathic & Osteopathic Physicians Taxonomy 2083P0500X Licence 0101041106 (VA)
Family Medicine Physician
Allopathic & Osteopathic Physicians Taxonomy 207Q00000X Licence 0101041106 (VA)
Aerospace Medicine Physician
Allopathic & Osteopathic Physicians Taxonomy 2083A0100X Licence 0101041106 (VA)

Registry record

NPI
1124022843
Entity type
Individual
Sex (as registered)
Male
NPI issued
9 Jun 2005
Record last updated
3 Sep 2025

Reproduced from NPPES, the federal provider registry. The date above is when the provider last updated their own entry, not when we fetched it - a record can be years old and still current in the registry.