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

Dr. William Joseph Jawien, MD

Individual provider Hematology & Oncology Physician · NPI 1417904020

Dr. William Joseph Jawien, MD is a Medical Oncology in Fresno, California. Graduated from Loyola University of Chicago, Stritch School of Medicine in 1991, 35 years ago. Practices with California Cancer Associates for Research and Excellence Inc, a 65-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
35
Trained at
Loyola University of Chicago, Stritch School of Medicine
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

7130 N Millbrook Ave
Fresno, CA 93720-3347
Phone: (559) 326-1222
Fax: (559) 326-1225
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1125 E Spruce Ave Ste 103, Fresno, CA 93720-3387 — (559) 878-4510

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence G74904 (CA)

Record details

NPI number1417904020
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 28, 2006
Last updated in NPPESOctober 9, 2025
Certification dateOctober 9, 2025

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice California Cancer Associates For Research And Excellence Inc — 65 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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