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

Dr. William W. Wu, MD, PHD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1720370109

Dr. William W. Wu, MD, PHD is a Pathology in Ontario, California. Qualified in 2008, 18 years ago. Practices with Southern California Permanente Medical Group, an 11,242-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and New York.

Years since qualifying
18
Licensed in
CA, NY
In the registry since
2011
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

2295 S Vineyard Ave
Ontario, CA 91761-7925
Phone: (909) 724-3530
Fax: (909) 724-3535
Show map & directions

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

Additional practice locations (1)

  • 9961 Sierra Ave, Fontana, CA 92335-6720 — (909) 302-8488

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence A116068 (CA)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 267829 (NY)

Record details

NPI number1720370109
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedMay 4, 2011
Last updated in NPPESApril 14, 2022
Certification dateApril 14, 2022
Mailing address2295 S Vineyard Ave, Ontario, CA 91761-7925

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Also practisesHEMATOLOGY
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Southern California Permanente Medical Group — 11242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare