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

Dr. Ostap G Melnyk, MD

Individual provider Hematology & Oncology Physician · NPI 1205834702

Dr. Ostap G Melnyk, MD is a Hematology/Oncology in San Leandro, California. Graduated from University of Chicago, Pritzker School of Medicine in 1985, 41 years ago. Licensed in California.

Years since qualifying
41
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
CA
In the registry since
2005
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

13847 E 14th St Ste 217
San Leandro, CA 94578-2626
Phone: (510) 483-2555
Fax: (510) 483-1856
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 G66164 (CA)

Record details

NPI number1205834702
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 8, 2005
Last updated in NPPESMay 14, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 1985 (41 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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