NPPES file of Aug 9, 2026

John C. Deysine, M.D.

Surgical Oncology Physician · Brooklyn, NY

John C. Deysine, M.D. is a surgical oncology physician with a practice address in Brooklyn, New York, and NPI 1881607216, issued on Aug 15, 2006. Check the license (New York 181541, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881607216
Name
John C. Deysine
Credential
M.D.
Primary taxonomy
Surgical Oncology Physician 2086X0206X
License number
181541 NY
Self-reported in NPPES; status is on the state search
Practice location
2219 Ocean Ave, Brooklyn, NY 11229
Phone
(516) 569-0696
Enumerated
Aug 15, 2006
Record last updated
Mar 10, 2023
Fax
(516) 569-3677
Medicare enrollment
Enrolled (PECOS I20090821000329); 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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Verify John C. Deysine 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 181541
    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

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51% fewer Medicare Part D claims than the average surgical oncology physician in 2024

43 Medicare Part D claims for 12 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D.

  1. John Deysine43
  2. Specialty average87

Most prescribed

  1. Anastrozole17 claims
  2. Exemestane11 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 practice group's MIPS final score for 2023 (Medicare payment program): 90.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score87.1
  2. Costout of 100 · 30%56.1
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Brooklyn Radiation Oncology PCBrooklyn, NY

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

John C. Deysine among 209 surgical oncology physician records in New York

John C. Deysine, M.D. is one of 209 surgical oncology physician records with a practice address in New York. 74% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 66% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1987 · median 2004 among the 136 with a school on file
  • Record last updated2023 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Oncology Physician providers in New York

There are 209 surgical oncology physician records in New York.

The 8 surgical oncology physician records with the nearest ZIP codes

  1. Rachel SargentBrooklyn, NY 112201043741986
  2. Michael Wayne, D.O.Brooklyn, NY 112151942367750
  3. Antonio Masi, M.D.Brooklyn, NY 112121245619725
  4. Juan Correa, MDBrooklyn, NY 112091134355753
  5. David Heimann, MDBrooklyn, NY 112091114071479
  6. Siarhei Melnikau, MDBrooklyn, NY 112091871977298
  7. Tresara Bell, M.D.Brooklyn, NY 112031457416521
  8. Nageswara Mandava, MDFlushing, NY 113551275534711

Common questions

What is John C. Deysine, M.D.'s NPI number?

John C. Deysine, M.D.'s National Provider Identifier (NPI) is 1881607216, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John C. Deysine, M.D. located?

The NPPES record lists a practice address at 2219 Ocean Ave, Brooklyn, NY, 11229. Phone: (516) 569-0696. Providers update this record themselves, so call before visiting.

How can I verify John C. Deysine, M.D.'s license?

NPPES lists New York license number 181541, 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 John C. Deysine, M.D. prescribe under Medicare Part D?

In 2024, John C. Deysine, M.D. had 43 Medicare Part D claims for 12 beneficiaries; the average among surgical oncology physician prescribers was 87. Part D covers Medicare prescriptions only.

What is John C. Deysine, M.D.'s MIPS final score?

The 2023 MIPS final score is 90.4 of 100, reported for the practice group. 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.