NPPES file of Aug 9, 2026

Penelope Hsu, MD

Pediatrics Physician · New York, NY

Penelope Hsu, MD is a pediatrics physician with a practice address in New York, New York, and NPI 1528150729, issued on Sep 28, 2006. Check the license (New York 222521, as entered in NPPES) on the NYS Education Department, Office of the Professions; 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
1528150729
Name
Penelope Hsu
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License numbers
222521 NY
A88553 CA
Self-reported in NPPES; status is on the state search
Practice location
125 Walker St FL 2, New York, NY 10013
Phone
(212) 226-3888
Enumerated
Sep 28, 2006
Record last updated
Jul 29, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(212) 334-6887
Medicaid IDs
00A885530 CA
03181500 NY
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 125 Walker St FL 2

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

  1. Alison Chan, DDSGeneral Practice Dentistry1831189885
  2. Angela Chan, MD, MPH, FAAPDevelopmental - Behavioral Pediatrics Physician1952559064
  3. Lai Ching Chan, RNRegistered Nurse1952783730
  4. Sunny Chan, DDSDentist1366709610
  5. Carolyn Chang, MDPediatrics Physician1427292879
  6. Lingmin Chen, RNRegistered Nurse1790291201

Verify Penelope Hsu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 222521
    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 New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average pediatrics physician in 2024

11 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Penelope Hsu11
  2. Specialty average375

Most prescribed

  1. Pantoprazole Sodium11 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: $175.74

3 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Penelope Hsu$175.74
  2. Specialty average$842.05

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

Penelope Hsu among 5,795 pediatrics physician records in New York

Penelope Hsu, MD is one of 5,795 pediatrics physician records with a practice address in New York. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 51% newer
  • In a Medicare fileYes · 36% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2019 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,005 pediatrics physician records list a practice address in New York

They are 1,005 of the 98,468 NPPES records with a practice address in New York, and 5,795 pediatrics physician records in New York.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Loretta Au, M.D.New York, NY 100131720077506
  2. Julia Chang-Lin, M.D.New York, NY 100131144219254
  3. Anita Hui, MDNew York, NY 100131740282300
  4. Josephine Kuo, M.D.New York, NY 100131659325207
  5. Cheuk Lau, M.D.New York, NY 100131508848441
  6. Elaine Lee, MDNew York, NY 100131841291473
  7. Lucy Leung-Eng, M.D.New York, NY 100131851348411
  8. Miu Ma, M.D.New York, NY 100131205890175

Common questions

What is Penelope Hsu, MD's NPI number?

Penelope Hsu, MD's National Provider Identifier (NPI) is 1528150729, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Penelope Hsu, MD located?

The NPPES record lists a practice address at 125 Walker St FL 2, New York, NY, 10013. Phone: (212) 226-3888. Providers update this record themselves, so call before visiting.

How can I verify Penelope Hsu, MD's license?

NPPES lists New York license number 222521, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Penelope Hsu, MD prescribe under Medicare Part D?

In 2024, Penelope Hsu, MD had 11 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.