NPPES file of Aug 9, 2026

Nigel Naichieh Hsu, M.D.

Orthopaedic Surgery Physician · Baltimore, MD

Nigel Naichieh Hsu, M.D. is an orthopaedic surgery physician with a practice address in Baltimore, Maryland, and NPI 1891053450, issued on May 1, 2012. Check the license (Maryland D85613, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891053450
Name
Nigel Naichieh Hsu
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
D85613 MD
Self-reported in NPPES; status is on the state search
Practice location
601 N Caroline St, Baltimore, MD 21287
Phone
(516) 270-5197
Enumerated
May 1, 2012
Record last updated
Sep 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20181004001832); may accept Medicare assignment
Medical or professional school
Johns Hopkins University School Of Medicine, 2012
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 601 N Caroline St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amir Abdelmalik, MDDiagnostic Radiology Physician1093967390
  2. Anthony AlbaneseStudent in an Organized Health Care Education/Training Program1538016159
  3. Mohab AlexanderNuclear Imaging & Therapy Physician1629114640
  4. Salman Aljarallah, MBBS, FRCPCStudent in an Organized Health Care Education/Training Program1174032270
  5. Jessica Alper, CRNPFamily Nurse Practitioner1669910535
  6. Mohammed Alrakan, M.B.B.SPlastic Surgery Physician1326465709

Verify Nigel Naichieh Hsu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D85613
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

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64% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

124 Medicare Part D claims for 32 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 25 claims were for opioids.

  1. Nigel Hsu124
  2. Specialty average346

Most prescribed

  1. Oxycodone Hcl24 claims
  2. Ondansetron Odt20 claims
  3. Gabapentin19 claims
  4. Ibuprofen18 claims
  5. Hydroxyzine Pamoate13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $3,033.69

14 payments; by number, the most common kind was food and beverage; the largest payer was Arthrex, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nigel Hsu$3,034
  2. Specialty average$23,023

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Johns Hopkins UniversityColumbia, MD
  2. Johns Hopkins UniversityMiddle River, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nigel Naichieh Hsu among 457 orthopaedic surgery physician records in Maryland

Nigel Naichieh Hsu, M.D. is one of 457 orthopaedic surgery physician records with a practice address in Maryland. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 77% of them.

  • NPI issued2012 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2012 · median 2002 among the 299 with a school on file
  • Record last updated2021 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Maryland

There are 457 orthopaedic surgery physician records in Maryland.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Lyall Ashberg, M.D.Baltimore, MD 212871902854102
  2. Thomas Brushart, M.D.Baltimore, MD 212871407814981
  3. David Cohen, M.D.Baltimore, MD 212871861444770
  4. Jonathan ForsbergBaltimore, MD 212871154319739
  5. Frank Frassica, M.D.Baltimore, MD 212871689617227
  6. Khaled Kebaish, MDBaltimore, MD 212871487618302
  7. Rushyuan Lee, MDBaltimore, MD 212871336313733
  8. David Leu, MDBaltimore, MD 212871487791521

Common questions

What is Nigel Naichieh Hsu, M.D.'s NPI number?

Nigel Naichieh Hsu, M.D.'s National Provider Identifier (NPI) is 1891053450, issued on May 1, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Nigel Naichieh Hsu, M.D. located?

The NPPES record lists a practice address at 601 N Caroline St, Baltimore, MD, 21287. Phone: (516) 270-5197. Providers update this record themselves, so call before visiting.

How can I verify Nigel Naichieh Hsu, M.D.'s license?

NPPES lists Maryland license number D85613, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nigel Naichieh Hsu, M.D. prescribe under Medicare Part D?

In 2024, Nigel Naichieh Hsu, M.D. had 124 Medicare Part D claims for 32 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.