Walter Hyunmin Choi, M.D.
Radiation Oncology Physician · Flushing, NY
Walter Hyunmin Choi, M.D. is a radiation oncology physician with a practice address in Flushing, New York, and NPI 1871700500, issued on May 16, 2007. Check the license (New York 230850-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Walter Hyunmin Choi
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 230850-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 15806 Northern Blvd, Flushing, NY 11358
- Phone
- (718) 445-3700
- Enumerated
- May 16, 2007
- Record last updated
- Dec 13, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (718) 460-4051
- Medicaid ID
- 02906325 NY
- Medicare enrollment
- Enrolled (PECOS I20070917000652); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 2001
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 449 in New York → Look up another NPI →
Also registered at 15806 Northern Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edlira Foto, NPFamily Nurse Practitioner1720577265
- Mary Reed, MDHematology & Oncology Physician1043393523
Verify Walter Hyunmin Choi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 230850-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average radiation oncology physician in 2024
89 Medicare Part D claims for 46 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl28 claims
- Procto-Med Hc13 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: $194.70
2 payments; by number, the most common kind was food and beverage; the largest payer was Thd America, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- North Shore Hematology Oncology Associates PCEast Setauket, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Walter Hyunmin Choi among 449 radiation oncology physician records in New York
Walter Hyunmin Choi, M.D. is one of 449 radiation 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, 46% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2001 · median 2005 among the 331 with a school on file
- Record last updated2017 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in New York
There are 449 radiation oncology physician records in New York.
All 449 in New York → Every provider in Flushing → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Hyesook Chang, M.D.Flushing, NY 113551396768057
- Steven Dibiase, MDFlushing, NY 113551750332292
- Baoqing Li, M.D.Flushing, NY 113551316026511
- Isaiah Friedman, M.D.Flushing, NY 113541407170319
- Josephine Kang, M.D, PHDFlushing, NY 113541760654636
- Bong Song Kim, M.D.Flushing, NY 113541740223197
- Elisa Wu, M.D.Flushing, NY 113541689942005
- Vincent Yeung, M.D.Flushing, NY 113541487722104
Common questions
What is Walter Hyunmin Choi, M.D.'s NPI number?
Walter Hyunmin Choi, M.D.'s National Provider Identifier (NPI) is 1871700500, issued on May 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Walter Hyunmin Choi, M.D. located?
The NPPES record lists a practice address at 15806 Northern Blvd, Flushing, NY, 11358. Phone: (718) 445-3700. Providers update this record themselves, so call before visiting.
How can I verify Walter Hyunmin Choi, M.D.'s license?
NPPES lists New York license number 230850-1, 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 Walter Hyunmin Choi, M.D. prescribe under Medicare Part D?
In 2024, Walter Hyunmin Choi, M.D. had 89 Medicare Part D claims for 46 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.