NPPES file of Aug 9, 2026

Wallace Peter Chan, M.D.

Hematology & Oncology Physician · Greenvale, NY

Wallace Peter Chan, M.D. is a hematology & oncology physician with a practice address in Greenvale, New York, and NPI 1164624334, issued on Jun 1, 2007. Check the license (New York 244953, 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
1164624334
Name
Wallace Peter Chan
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
244953 NY
Self-reported in NPPES; status is on the state search
Practice location
2200 Northern Blvd, Greenvale, NY 11548
Phone
(516) 325-7500
Enumerated
Jun 1, 2007
Record last updated
May 3, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080102000403); accepts Medicare assignment
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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8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →

Also registered at 2200 Northern Blvd

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

  1. Marie Chen, MDSurgery Physician1568516961
  2. Jillian Danzi, NPFamily Nurse Practitioner1619442381
  3. Kaitlyn FrenchAdult Health Nurse Practitioner1972018166
  4. Hilary Greenblatt, NPPrimary Care Nurse Practitioner1942709043
  5. Mehak Gupta, DOStudent in an Organized Health Care Education/Training Program1235691932
  6. Wei Huang-Parise, DDSDentist1871649772

Verify Wallace Peter Chan 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 244953    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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53% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

414 Medicare Part D claims for 98 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims. 44 claims were for opioids.

  1. Wallace Chan414
  2. Specialty average877

Most prescribed

  1. Hydroxyurea45 claims
  2. Prednisone31 claims
  3. Tagrisso24 claims
  4. Dexamethasone19 claims
  5. Oxycodone Hcl16 claims
  6. Imatinib Mesylate15 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: $553.30

23 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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. Wallace Chan$553.30
  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. Chs Physician Partners PCGreenvale, NY

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

Wallace Peter Chan among 1,163 hematology & oncology physician records in New York

Wallace Peter Chan, 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 2007, is newer than 47% of them.

  • NPI issued2007 · 47% of these records are older, 44% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1999 · median 2002 among the 833 with a school on file
  • Record last updated2017 · 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).

2 hematology & oncology physician records list a practice address in Greenvale

They are 2 of the 171 NPPES records with a practice address in Greenvale, and 1,163 hematology & oncology physician records in New York.

All 1,163 in New York → Every provider in Greenvale → Hematology & Oncology Physician nationwide →

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

  1. Su Yun Chung, M.D.Greenvale, NY 115481538523642
  2. Debra Ferman, M.D.Glen Head, NY 115451881693216
  3. George Zervos, M.D.Glen Head, NY 115451487702544
  4. Pouyan Gohari, MDEast Meadow, NY 115541629210141
  5. Eileen Milano, MDGlen Cove, NY 115421295895365
  6. Reed Phillips, M.D.Glen Cove, NY 115421306975552
  7. Crina Vintila- Brebenel, MDGlen Cove, NY 115421467432633
  8. Jen Chin Wang, MDLong Beach, NY 115611205938115

Common questions

What is Wallace Peter Chan, M.D.'s NPI number?

Wallace Peter Chan, M.D.'s National Provider Identifier (NPI) is 1164624334, issued on Jun 1, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Wallace Peter Chan, M.D. located?

The NPPES record lists a practice address at 2200 Northern Blvd, Greenvale, NY, 11548. Phone: (516) 325-7500. Providers update this record themselves, so call before visiting.

How can I verify Wallace Peter Chan, M.D.'s license?

NPPES lists New York license number 244953, 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 Wallace Peter Chan, M.D. prescribe under Medicare Part D?

In 2024, Wallace Peter Chan, M.D. had 414 Medicare Part D claims for 98 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.