Physician Profile
Unclaimed ProfileAbout Dr. Matsui
Based in Houston, TX, William Hikaru Matsui, M.D. is listed in the NPI registry under medical oncology. William graduated from University of California, San Francisco School of Medicine in 1995. Medicare claims data shows William provided 61 services to 31 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (713) 792-6161
- Email not available
Practice Locations
1515 HOLCOMBE BLVD
Houston, TX 77030
Procedures Most Often Billed to Medicare
61 services · 31 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
61 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other medical oncology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 22 related providers in 3 groups
Other medical oncology specialists in Houston 6
Same specialty, same city.
Trained at University of California, San Francisco School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1995 at University of California, San Francisco School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Matsui's specialty?
Dr. Matsui is a medical oncology in Houston, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “MEDICAL ONCOLOGY”.
NPI registry
Where can I find Dr. Matsui?
Dr. Matsui is listed at 1515 HOLCOMBE BLVD, Houston, TX 77030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Matsui?
The number on file is (713) 792-6161. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Matsui?
Dr. Matsui's National Provider Identifier is 1568411049. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Matsui's medical education?
Dr. Matsui attended University of California, San Francisco School of Medicine, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Matsui have?
Dr. Matsui has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Matsui known for?
According to Medicare billing data, Dr. Matsui the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Matsui's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Matsui. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.