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

John W. Ostrowski, MD

Individual provider Anesthesiology Physician · NPI 1790770956

John W. Ostrowski, MD is an Anesthesiology Physician in Wilmington, Delaware. Licensed in Delaware and New York. Registered with an NPI since 2005.

Licensed in
DE, NY
In the registry since
2005
Specialties on file
3
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

1600 Rockland Rd
Wilmington, DE 19803-3607
Phone: (302) 651-4000
Fax: (302) 651-5345
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence C10008937 (DE)
Anesthesiology Physician Taxonomy 207L00000X · Licence 196716 (NY)
Pediatric Anesthesiology Physician Taxonomy 207LP3000X · Licence C10008937 (DE)

Record details

NPI number1790770956
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 14, 2005
Last updated in NPPESSeptember 26, 2011
Mailing addressP.O. Box 191, Rockland, DE 19723-0191

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