NIGEL NAICHIEH HSU M.D.
NPI 1891053450
Orthopaedic Surgery in Baltimore, MD
About Nigel Naichieh Hsu M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NIGEL NAICHIEH HSU M.D. (NPI 1891053450) is an individual orthopaedic surgery provider in Baltimore, Maryland, licensed in Maryland (D85613) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Johns Hopkins University School Of Medicine (2012).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Nigel Naichieh Hsu M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Nigel Hsu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, District of Columbia enrollment
- 48 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 5
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDJohns Hopkins Howard County Medical Center
Acute Care Hospitals · Columbia, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21287 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BALTIMORE, MD 21287
BALTIMORE, MD 21287
BALTIMORE, MD 21287
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 Nigel Hsu's NPI number?
The NPI number for Nigel Hsu is 1891053450. It was assigned to this individual provider in the NPPES registry on May 1, 2012.
Where is Nigel Hsu located?
Nigel Hsu practices at 601 N Caroline St Jhoc #5215, Baltimore, MD 21287. The listed phone number is (516) 270-5197.
What is Nigel Hsu's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Nigel Hsu enrolled in Medicare?
Yes. Nigel Hsu is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Nigel Hsu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nigel Hsu reassigns Medicare benefits to 2 organizations: Johns Hopkins University (Baltimore, MD) and Johns Hopkins University (Baltimore, MD). 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 Nigel Hsu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Nigel Hsu affiliated with any hospitals?
According to CMS data, Nigel Hsu is affiliated with Johns Hopkins Hospital, The and Johns Hopkins Howard County Medical Center.
When was this NPI record last updated?
The NPPES record for Nigel Hsu was last updated on September 14, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Nigel Naichieh Hsu, M.D. · NPI 1891053450
Orthopaedic Surgery physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since May 1, 2012.
## Identity
- **NPI:** 1891053450 (Entity type: Individual)
- **Enumerated:** May 1, 2012
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** D85613 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 601 N CAROLINE ST, JHOC #5215, Baltimore, MD 21287-0882
- **Phone:** (516) 270-5197
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Johns Hopkins University (NPI 1295731966, Baltimore, MD); Johns Hopkins University (NPI 1013913789, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 2012
## Record status
- **NPPES last updated:** September 14, 2021
- **Other identifiers:** Other D85613 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1891053450) · Data from the CMS NPPES public registry.