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

John L Barstis, MD

Individual provider Hematology & Oncology Physician · NPI 1528093085

John L Barstis, MD is a Hematology & Oncology Physician in Valencia, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

23929 McBean Pkwy Bldg F Ste 215
Valencia, CA 91355-4466
Phone: (661) 255-5350
Fax: (661) 255-9907
Show map & directions

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

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence G39366 (CA)

Record details

NPI number1528093085
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 12, 2006
Last updated in NPPESMay 26, 2010
Mailing address5767 W Century Blvd, Suite 200, Los Angeles, CA 90045-5632

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