NPPES file of Aug 9, 2026

Bobby Chi-Hung Liaw, M.D.

Hematology & Oncology Physician · New York, NY

Bobby Chi-Hung Liaw, M.D. is a hematology & oncology physician with a practice address in New York, New York, and NPI 1851528731, issued on Jun 17, 2009. Check the license (New York 264741, 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
1851528731
Name
Bobby Chi-Hung Liaw
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
264741 NY
Self-reported in NPPES; status is on the state search
Practice location
325 W 15TH St, New York, NY 10011
Phone
(212) 604-6010
Enumerated
Jun 17, 2009
Record last updated
Oct 12, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150826000667); accepts Medicare assignment
Medical or professional school
State University Of New York Downstate Medical Center, 2009
Telehealth
Offers telehealth (CMS)
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 325 W 15TH St

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

  1. Michelle Abraham, LCSWClinical Social Worker1053959775
  2. Mollie Aidasani, NPWomen's Health Nurse Practitioner1467704296
  3. Christian Archer, MDHospice and Palliative Medicine (Family Medicine) Physician1548882707
  4. Arezo Aziz, DNP, FNP-BCFamily Nurse Practitioner1538841689
  5. Tayyaba Bashir, M.D.Hematology & Oncology Physician1528261351
  6. Anthony Berson, M.D.Specialist1881691301

Verify Bobby Chi-Hung Liaw 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 264741
    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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2.5 times the Medicare Part D claims of the average hematology & oncology physician in 2024

2,209 Medicare Part D claims for 256 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 81 claims were for opioids.

  1. Bobby Liaw2,209
  2. Specialty average877

Most prescribed

  1. Prednisone554 claims
  2. Abiraterone Acetate539 claims
  3. Xtandi185 claims
  4. Orgovyx125 claims
  5. Erleada89 claims
  6. Tamsulosin Hcl73 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: $469.91

12 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Bobby Liaw$469.91
  2. Specialty average$7,481.41

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

Bills Medicare through one group practice

  1. Icahn School OF Medicine AT Mount SinaiNew York, NY

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

Bobby Chi-Hung Liaw among 1,163 hematology & oncology physician records in New York

Bobby Chi-Hung Liaw, M.D. is one of 1,163 hematology & oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 62% of them.

  • NPI issued2009 · 62% of these records are older, 34% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2009 · median 2002 among the 833 with a school on file
  • Record last updated2015 · 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 207RH0003X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in New York

There are 1,163 hematology & oncology physician records in New York.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Tayyaba Bashir, M.D.New York, NY 100111528261351
  2. Neal Friedberg, M.D.New York, NY 100111639415995
  3. Ira Halperin, MDNew York, NY 100111437245321
  4. Paula Klein, M.D.New York, NY 100111568450781
  5. Shambavi Richard, M.D.,New York, NY 100111750323994
  6. Theresa Shao, MDNew York, NY 100111134399306
  7. Richard Hirschman, M.D.New York, NY 100101669524674
  8. Arthur Radin, M.D.New York, NY 100101396839510

Common questions

What is Bobby Chi-Hung Liaw, M.D.'s NPI number?

Bobby Chi-Hung Liaw, M.D.'s National Provider Identifier (NPI) is 1851528731, issued on Jun 17, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Bobby Chi-Hung Liaw, M.D. located?

The NPPES record lists a practice address at 325 W 15TH St, New York, NY, 10011. Phone: (212) 604-6010. Providers update this record themselves, so call before visiting.

How can I verify Bobby Chi-Hung Liaw, M.D.'s license?

NPPES lists New York license number 264741, 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 Bobby Chi-Hung Liaw, M.D. prescribe under Medicare Part D?

In 2024, Bobby Chi-Hung Liaw, M.D. had 2,209 Medicare Part D claims for 256 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.