William Chun-Ying Chen, M.D.
Radiation Oncology Physician · Bay Shore, NY
William Chun-Ying Chen, M.D. is a radiation oncology physician with a practice address in Bay Shore, New York, and NPI 1962602136, issued on Jul 24, 2007. Check the license (New York 268572-4, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- William Chun-Ying Chen
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 268572-4 NY
Self-reported in NPPES; status is on the state search - Practice location
- 440 E Main St Ste C, Bay Shore, NY 11706
- Phone
- (855) 927-6622
- Enumerated
- Jul 24, 2007
- Record last updated
- Jul 27, 2023
- Fax
- (516) 470-8445
- Medicaid ID
- 03807430 NY
- Medicare enrollment
- Enrolled (PECOS I20140306000938); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 449 in New York → Look up another NPI →
Verify William Chun-Ying Chen 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 268572-4Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average radiation oncology physician in 2024
69 Medicare Part D claims for 30 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Tamsulosin Hcl31 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.
The MIPS final score for 2023 (Medicare payment program): 91.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- North Shore-Lij Medical PCBay Shore, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Chun-Ying Chen among 449 radiation oncology physician records in New York
William Chun-Ying Chen, 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
- Graduated2006 · median 2005 among the 331 with a school on file
- Record last updated2023 · 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 Bay Shore → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- John Ames, MDBay Shore, NY 117061952352072
- Mark Ashamalla, M.D.Far Rockaway, NY 116911336533249
- Daphna Gelblum, MDCommack, NY 117251215917604
- Joseph Cirrone, MDEast Setauket, NY 117331023013117
- Martin Silverstein, MDE Setauket, NY 117331952306391
- Jigna Jhaveri, M.D.Islandia, NY 117491699796896
- Eduard Kagan, MDIslandia, NY 117491679511257
- Andrew Pearlman, MDIslandia, NY 117491386733319
Common questions
What is William Chun-Ying Chen, M.D.'s NPI number?
William Chun-Ying Chen, M.D.'s National Provider Identifier (NPI) is 1962602136, issued on Jul 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Chun-Ying Chen, M.D. located?
The NPPES record lists a practice address at 440 E Main St Ste C, Bay Shore, NY, 11706. Phone: (855) 927-6622. Providers update this record themselves, so call before visiting.
How can I verify William Chun-Ying Chen, M.D.'s license?
NPPES lists New York license number 268572-4, 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 William Chun-Ying Chen, M.D. prescribe under Medicare Part D?
In 2024, William Chun-Ying Chen, M.D. had 69 Medicare Part D claims for 30 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is William Chun-Ying Chen, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.