NATHANIEL NING HSU MD
NPI 1235420282
Anesthesiology in Philadelphia, PA
About Nathaniel Ning Hsu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHANIEL NING HSU MD (NPI 1235420282) is an individual anesthesiology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD454315) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS and is a graduate of Other (2011).
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 and accepts Medicare assignment
Nathaniel Ning Hsu Md 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 Reassignments
2Medicare enrollment records show Nathaniel Hsu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19104
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,488 clinicians in this Medicare group
Gresham, OR 97030
- Reassigned Medicare billing, Oregon and Washington enrollments
- Medicare enrollment name: Kaiser Foundation Health Plan Of The Northwest
- Also billed through NPI 1609171081 (Washington)
- 3,207 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.
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
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 Nathaniel Hsu's NPI number?
The NPI number for Nathaniel Hsu is 1235420282. It was assigned to this individual provider in the NPPES registry on April 26, 2011.
Where is Nathaniel Hsu located?
Nathaniel Hsu practices at 3400 Spruce St 6 Dulles, Philadelphia, PA 19104. The listed phone number is (215) 662-7310.
What is Nathaniel Hsu's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Nathaniel Hsu enrolled in Medicare?
Yes. Nathaniel 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 organizations bill Medicare for Nathaniel Hsu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathaniel Hsu reassigns Medicare benefits to 2 organizations: University Of Penn-Medical Group (Philadelphia, PA) and Sapphire At Gresham Rehab, LLC (Gresham, OR). Each 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 Nathaniel 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 Nathaniel Hsu was last updated on April 22, 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.
# Nathaniel Ning Hsu, MD · NPI 1235420282
Anesthesiology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since April 26, 2011.
## Identity
- **NPI:** 1235420282 (Entity type: Individual)
- **Enumerated:** April 26, 2011
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD454315 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 SPRUCE ST, 6 DULLES, Philadelphia, PA 19104-4206
- **Phone:** (215) 662-7310
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): University Of Penn-Medical Group (NPI 1073902169, Philadelphia, PA); Sapphire At Gresham Rehab, LLC (NPI 1033740899, Gresham, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** April 22, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1235420282) · Data from the CMS NPPES public registry.