Internal Medicine, Hematology & Oncology in VALENCIA, CA
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John L Barstis is a physician specializing in Internal Medicine, Hematology & Oncology, based in Valencia, CA.
Generated from public NPI Registry data only. Not independently verified — confirm credentials directly with the practice.
JOHN L BARSTIS specializes in Internal Medicine, Hematology & Oncology.
JOHN L BARSTIS practices in VALENCIA, CA.
JOHN L BARSTIS's NPI number is 1528093085.