SHERWIN STEPHEN HSU M.D.
NPI 1366679763
Internal Medicine in San Antonio, TX
About Sherwin Stephen Hsu M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHERWIN STEPHEN HSU M.D. (NPI 1366679763) is an individual internal medicine provider in San Antonio, Texas, licensed in Texas (P5081) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Sherwin Stephen Hsu M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Sherwin Hsu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Pomona, CA 91766
- Reassigned Medicare billing, California enrollment
- 1,939 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78229 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN ANTONIO, TX 78229
SAN ANTONIO, TX 78229
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 Sherwin Hsu's NPI number?
The NPI number for Sherwin Hsu is 1366679763. It was assigned to this individual provider in the NPPES registry on June 12, 2009.
Where is Sherwin Hsu located?
Sherwin Hsu practices at 7703 Floyd Curl Dr # Mc7982, San Antonio, TX 78229. The listed phone number is (210) 567-4815.
What is Sherwin Hsu's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Sherwin Hsu enrolled in Medicare?
Yes. Sherwin Hsu is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Sherwin Hsu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sherwin Hsu reassigns Medicare benefits to County Of Los Angeles (Pomona, CA). 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 Sherwin Hsu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Sherwin Hsu was last updated on December 20, 2013. 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.