DR. CHARLES CHIA-CHUEN HSU M.D., PH.D.
NPI 1033357991
Radiology - Radiation Oncology in Round Rock, TX
About Dr. Charles Chia-chuen Hsu M.d., Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHARLES CHIA-CHUEN HSU M.D., PH.D. (NPI 1033357991) is an individual radiation oncology provider in Round Rock, Texas, licensed in Texas (P6422) and active in the NPI registry since January 2009. He is enrolled in Medicare PECOS and is a graduate of Johns Hopkins University School Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Charles Chia-chuen Hsu M.d., Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Charles Hsu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tucson, AZ 85747
- Reassigned Medicare billing, Arizona enrollment
- 1,514 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 16
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78681 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROUND ROCK, TX 78681
ROUND ROCK, TX 78681
ROUND ROCK, TX 78681
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Charles Hsu's NPI number?
The NPI number for Charles Hsu is 1033357991. It was assigned to this individual provider in the NPPES registry on January 30, 2009.
Where is Charles Hsu located?
Charles Hsu practices at 2410 Round Rock Ave Ste 150, Round Rock, TX 78681. The listed phone number is (512) 341-8724.
What is Charles Hsu's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Charles Hsu enrolled in Medicare?
Yes. Charles Hsu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Charles Hsu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Hsu reassigns Medicare benefits to Banner-University Medical Group (Tucson, AZ). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Charles Hsu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Charles Hsu accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Oscar Health Plan, Inc. and UnitedHealthcare list Charles Hsu as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Charles Hsu was last updated on August 15, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.