DEREK YU HSU M.D.
NPI 1952720013
General Practice in Los Angeles, CA
About Derek Yu Hsu M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DEREK YU HSU M.D. (NPI 1952720013) is an individual general practice provider in Los Angeles, California, licensed in California (A140476) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Derek Yu Hsu M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Derek Hsu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90038
- Reassigned Medicare billing, California enrollment
- 115 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.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90004
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 Derek Hsu's NPI number?
The NPI number for Derek Hsu is 1952720013. It was assigned to this individual provider in the NPPES registry on April 15, 2014.
Where is Derek Hsu located?
Derek Hsu practices at 338 N Western Ave, Los Angeles, CA 90004. The listed phone number is (805) 338-0524.
What is Derek Hsu's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Derek Hsu enrolled in Medicare?
Yes. Derek Hsu is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Derek Hsu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Derek Hsu reassigns Medicare benefits to Hollywood Urgent Care (Los Angeles, 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 Derek 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 Derek Hsu was last updated on July 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Derek Yu Hsu, M.D. · NPI 1952720013
General Practice physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 15, 2014.
## Identity
- **NPI:** 1952720013 (Entity type: Individual)
- **Enumerated:** April 15, 2014
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** A140476 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 338 N WESTERN AVE, Los Angeles, CA 90004-2602
- **Phone:** (805) 338-0524
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Hollywood Urgent Care (NPI 1356767867, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1952720013) · Data from the CMS NPPES public registry.