Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Johannes L Zakrzewski, MD

Individual provider Pediatric Hematology & Oncology Physician · NPI 1558678615

Dr. Johannes L Zakrzewski, MD is a Pediatric Hematology & Oncology Physician in Hackensack, New Jersey. Works from 2 locations. Licensed in New Jersey.

Licensed in
NJ
In the registry since
2010
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

30 Prospect Ave
Hackensack, NJ 07601-1915
Phone: (201) 880-3420
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 30 Prospect Ave, Hackensack, NJ 07601-1915 — (201) 880-3420

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence 25MA10439100 (NJ)

Record details

NPI number1558678615
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 9, 2010
Last updated in NPPESNovember 20, 2019

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