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

Mark Stewart Chinowsky

Individual provider Hematology & Oncology Physician · NPI 1699260539

Mark Stewart Chinowsky is a Hematology & Oncology Physician in Rancho Palos Verdes, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2018
Specialties on file
2

Practice location Address checks out

3368 Crownview Dr
Rancho Palos Verdes, CA 90275-6418
Phone: (310) 833-1632
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G23133 (CA)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence G23133 (CA)

Record details

NPI number1699260539
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJune 23, 2018
Last updated in NPPESJune 23, 2018