NPPES file of Aug 9, 2026

Samuel Ryu, M.D.

Radiation Oncology Physician · Stony Brook, NY

Samuel Ryu, M.D. is a radiation oncology physician with a practice address in Stony Brook, New York, and NPI 1639239049, issued on Dec 8, 2006. Check the license (New York 206648, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639239049
Name
Samuel Ryu
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
206648 NY
4301061949 MI
Self-reported in NPPES; status is on the state search
Practice location
101 Nicolls RD, Stony Brook, NY 11794
Phone
(631) 444-7770
Enumerated
Dec 8, 2006
Record last updated
May 2, 2022
Medicaid ID
415031010 MI
Medicare enrollment
Enrolled (PECOS I20140618000393); accepts Medicare assignment
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 101 Nicolls RD

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

  1. Arshia Aalami Harandi, MD, MSStudent in an Organized Health Care Education/Training Program1033810627
  2. Sadia Abbasi, MDInternal Medicine Physician1740442698
  3. Alan Abboud, MDStudent in an Organized Health Care Education/Training Program1891498531
  4. Verona AbdelmesehStudent in an Organized Health Care Education/Training Program1558926022
  5. Rula Abdulrahman, M.D.Nephrology Physician1790180776
  6. Dua AbedeenStudent in an Organized Health Care Education/Training Program1457153934

Verify Samuel Ryu 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 206648
    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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The MIPS final score for 2023 (Medicare payment program): 98.5 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.

  1. Qualityout of 100 · 30% of the final score82.9
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Stony Brook Radiation Oncology, University Faculty Practice CorporatioStony Brook, NY

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

Samuel Ryu among 449 radiation oncology physician records in New York

Samuel Ryu, 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 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 53% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1982 · median 2005 among the 331 with a school on file
  • Record last updated2022 · 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.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Wyman Bethune, M.D.Stony Brook, NY 117941144268756
  2. Kartik Mani, M.D., PH.DStony Brook, NY 117941144586397
  3. Tae Park, M.D.Stony Brook, NY 117941932141942
  4. Alexander Slade, M.D., PH.D.Stony Brook, NY 117941093195281
  5. Alexander Stessin, M.D., PH.D.Stony Brook, NY 117941598992802
  6. Tamara Weiss, M.D.Stony Brook, NY 117941710920806
  7. Jieying Wu, MDStony Brook, NY 117941184252629
  8. Johnny Kao, M.D.West Islip, NY 117951639141476

Common questions

What is Samuel Ryu, M.D.'s NPI number?

Samuel Ryu, M.D.'s National Provider Identifier (NPI) is 1639239049, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Samuel Ryu, M.D. located?

The NPPES record lists a practice address at 101 Nicolls RD, Stony Brook, NY, 11794. Phone: (631) 444-7770. Providers update this record themselves, so call before visiting.

How can I verify Samuel Ryu, M.D.'s license?

NPPES lists New York license number 206648, 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.

What is Samuel Ryu, M.D.'s MIPS final score?

The 2023 MIPS final score is 98.5 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.