Dr. William Chun-Ying Chen, MD
- Medicare services, 2024
- 2,934
- Medicare patients, 2024
- 230
- Part D claims, 2024
- 69
- MIPS score, 2024
- 93
- Hospital affiliations
- 3
- Practice address
- 27005 76th Ave, New Hyde Park, NY 11040
- Practice phone
- Call (516) 876-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Long Island Jewish Medical Center
New Hyde Park, New York
Find Dr. Chen's professional email, personal email and mobile number
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Dr. William Chun-Ying Chen is a radiation oncologist in New Hyde Park, New York
Dr. Chen practices at Long Island Jewish Medical Center in New Hyde Park, New York.
Dr. Chen's NPI, 1962602136, was assigned on July 24, 2007. Dr. Chen graduated from New York University Grossman School of Medicine in 2006. Dr. Chen holds New York license 268572-4.
- NPI
- 1962602136NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729218003
- NPI enumeration date
- July 24, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (516) 876-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Chun-Ying Chen practices at Long Island Jewish Medical Center in New Hyde Park, New York
Dr. Chen's primary practice is Long Island Jewish Medical Center, at 27005 76th Ave, New Hyde Park, NY 11040 in Nassau County. The practice phone is (516) 876-6000.
- Long Island Jewish Medical Center27005 76th Ave, New Hyde Park, NY 11040 · Nassau CountyPhone(516) 876-6000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William Chun-Ying Chen is affiliated with 5 sites of care and 1 medical group
Dr. Chen's primary practice is Long Island Jewish Medical Center in New Hyde Park, New York. Dr. Chen is also affiliated with Long Island Jewish Medical Center. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Chen to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Chun-Ying Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Long Island Jewish Medical Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Chun-Ying Chen is one of 385 radiation oncologists in New York
Radiation oncology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Chen is licensed in New York.
Specialties and state licenses
- Radiation oncology, New YorkPrimary
Radiation oncologists near Dr. Chen
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William Chun-Ying Chen billed Medicare for 2,934 services in 2024
CMS data shows 2,934 Medicare services from Dr. Chen across 22 procedure codes in 2024, for 230 Medicare patients. Medicare paid $217,412 for them. Every service was in an office.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 9212024: 1,29340%
- Other services
- 2023: 4352024: 1,258189%
- Office and hospital visits
- 2023: 3552024: 3838%
Dr. Chen compared with the New York median for radiation oncologists, 2024
- Dr. Chen
- New York median
- Medicare services
- 2,934vs 1,0542.8 times
- Medicare patients
- 230vs 16044% above
- Part D claims
- 31vs 3614% below
Medians across 368 radiation oncologists in New York with Dmand AI profiles that report each measure.
Dr. Chen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Chun-Ying Chen treated 230 Medicare patients in 2024, average age 75
CMS counts 230 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 98 patients. 75% of them have cancer, and 75% have high blood pressure. 13% are also on Medicaid. Their average risk score is 1.85, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 71, with 59% women.
Dr. Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chen's Medicare patients by sex, 2024
- Women14061%
- Men9039%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease43%
- Diabetes37%
- COPD32%
- Anxiety25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women59%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Chun-Ying Chen wrote 69 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 69 Medicare Part D claims for 30 patients. 81% of them were for generic drugs. CMS names the drug for 31 of them, across 1 drug with 11 or more claims each, at $492 in total drug cost. In 2017, CMS named 109 claims across 3 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic56 claims81%
- Brand-name13 claims19%
Dr. Chen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2024
- 2017
- 2024
- Claims for drugs CMS names
- 2017: 1092024: 3172%
Drugs named by CMS: 1 in 2024, 3 in 2017.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. William Chun-Ying Chen scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Chen for performance year 2024, reported through an alternative payment model (APM). Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chen's MIPS scores, performance year 2024
- 93of 100Final score
- 79.8of 100Quality
- 89of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. William Chun-Ying Chen received $4,858 in industry payments from 2016 to 2023
CMS Open Payments shows 129 general payments to Dr. Chen from 27 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 44% of the total. VisionRT, Inc. paid the most, $1,440.
General payments to Dr. Chen by program year, 2016 to 2023
General payments to Dr. Chen by kind, 2016 to 2023
- Food and beverage$2,14744%
- Compensation for serving as faculty or as a speaker for a medical education program$1,44030%
- Speaker and faculty fees$1,26026%
- Education$110%
Companies that paid Dr. Chen the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Chun-Ying Chen graduated from New York University Grossman School of Medicine
Dr. Chen graduated from New York University Grossman School of Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Chun-Ying Chen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William Chun-Ying Chen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William Chun-Ying Chen's NPI number?
Dr. William Chun-Ying Chen's NPI number is 1962602136. It was assigned on July 24, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. William Chun-Ying Chen?
Dr. William Chun-Ying Chen is a radiation oncologist in New Hyde Park, New York. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. William Chun-Ying Chen practice?
Dr. Chen practices at 27005 76th Ave, New Hyde Park, NY 11040. Dr. Chen's primary practice is Long Island Jewish Medical Center in New Hyde Park, New York. Dmand AI also links Dr. Chen to 2 hospitals and 1 group practice or clinic.
What is Dr. William Chun-Ying Chen's office phone number?
The practice phone on file for Dr. Chen is (516) 876-6000.
What is Dr. William Chun-Ying Chen's medical license number?
Dr. Chen holds New York license 268572-4.
Which hospitals is Dr. William Chun-Ying Chen affiliated with?
Dr. Chen is affiliated with Long Island Jewish Medical Center. Dmand AI links Dr. Chen to 2 more hospitals.
What medical group is Dr. William Chun-Ying Chen part of?
Dr. Chen is linked to Northwell Health Physician Partners Cardiology at Great Neck.
Does Dr. William Chun-Ying Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 2,934 services in 2024, and Dr. Chen accepts Medicare assignment.
Does Dr. William Chun-Ying Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chen as offering telehealth services.
What is Dr. William Chun-Ying Chen's MIPS score?
Dr. Chen's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. William Chun-Ying Chen see?
CMS counts 230 Medicare patients who saw Dr. Chen in 2024, with an average age of 75.
What services does Dr. William Chun-Ying Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were medicare service (G6002), radiation oncology (77427) and radiation oncology (77014).
Where did Dr. William Chun-Ying Chen go to medical school?
Dr. Chen graduated from New York University Grossman School of Medicine in 2006.
What drugs does Dr. William Chun-Ying Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Tamsulosin HCl.
Has Dr. William Chun-Ying Chen received payments from drug or device companies?
CMS Open Payments shows $4,858 in general payments to Dr. Chen from 27 companies from 2016 to 2023. The largest total came from VisionRT, Inc.
How long has Dr. William Chun-Ying Chen been practicing?
Dr. Chen graduated from medical school in 2006, 20 years ago.
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