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

Individual provider Medical Oncology Physician · NPI 1568411049

William Hikaru Matsui, MD is a Medical Oncology in Houston, Texas. Graduated from University of California, San Francisco School of Medicine in 1995, 31 years ago. Practices with Seton Family of Doctors, a 785-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
31
Trained at
University of California, San Francisco School of Medicine
Licensed in
TX
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

1515 Holcombe Blvd
Houston, TX 77030-4000
Phone: (713) 792-6161
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence R6828 (TX)

Record details

NPI number1568411049
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 10, 2006
Last updated in NPPESMay 13, 2026
Certification dateMay 13, 2026

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Seton Family Of Doctors — 785 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

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