NPPES file of Aug 9, 2026

Kadirawelpillai Iswara, MD

Gastroenterology Physician · Brooklyn, NY

Kadirawelpillai Iswara, MD is a gastroenterology physician with a practice address in Brooklyn, New York, and NPI 1265506828, issued on Nov 17, 2006. Check the license (New York 115155, 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
1265506828
Name
Kadirawelpillai Iswara
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
115155 NY
Self-reported in NPPES; status is on the state search
Practice location
2511 Ocean Ave, Brooklyn, NY 11229
Phone
(718) 615-0400
Enumerated
Nov 17, 2006
Record last updated
Jul 8, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(718) 615-0874
Medicaid ID
00211647 NY
Medicare enrollment
Enrolled (PECOS I20080122000315); 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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Also registered at 2511 Ocean Ave

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

  1. Alexander Kolesnikov, MDInternal Medicine Physician1518106889
  2. Marina KupershteynOccupational Therapist1144544735
  3. Marina Zabezhanskaya, M.D.Dermatology Physician1134226665
  4. Helen Zasipkin, MS,RDRegistered Dietitian1295865764
  5. Aleksandr Zasypkin, MDInternal Medicine Physician1154384782
  6. Yakov Zilberman, D.C.Chiropractor1750307625

Verify Kadirawelpillai Iswara 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 115155
    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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2.1 times the Medicare Part D claims of the average gastroenterology physician in 2024

1,670 Medicare Part D claims for 582 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Kadirawelpillai Iswara1,670
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium370 claims
  2. Gavilyte-G169 claims
  3. Omeprazole97 claims
  4. Famotidine91 claims
  5. Sod Sulf-Potass Sulf-Mag Sulf78 claims
  6. Linzess75 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): 84 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 score81.4
  2. Costout of 100 · 30%63.2
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Industry payments in 2024: $23,967.31

134 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kadirawelpillai Iswara$23,967
  2. Specialty average$5,016

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Gastrointestinal Care OF Long Island PLLCBrooklyn, NY
  2. Maimonides Medical Center Mmc Gastroenterology FppBrooklyn, NY

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

Kadirawelpillai Iswara among 1,797 gastroenterology physician records in New York

Kadirawelpillai Iswara, MD is one of 1,797 gastroenterology physician records with a practice address in New York. 88% 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 15% of them.

  • NPI issued2006 · 15% of these records are older, 44% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1968 · median 1999 among the 1,378 with a school on file
  • Record last updated2008 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in New York

There are 1,797 gastroenterology physician records in New York.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Joseph Durzieh, M.D.Brooklyn, NY 112291942271010
  2. Jeffrey Gamss, MDBrooklyn, NY 112291780793943
  3. Gary Gettenberg, M.D.Brooklyn, NY 112291194795476
  4. Inna Gordin, M.D.Brooklyn, NY 112291093866386
  5. Stephen Haddad, M.D.Brooklyn, NY 112291801844964
  6. Oleg Katcher, MDBrooklyn, NY 112291598701468
  7. Alvin Leb, MDBrooklyn, NY 112291356358220
  8. Yuriy PertsovskyBrooklyn, NY 112291326085168

Common questions

What is Kadirawelpillai Iswara, MD's NPI number?

Kadirawelpillai Iswara, MD's National Provider Identifier (NPI) is 1265506828, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kadirawelpillai Iswara, MD located?

The NPPES record lists a practice address at 2511 Ocean Ave, Brooklyn, NY, 11229. Phone: (718) 615-0400. Providers update this record themselves, so call before visiting.

How can I verify Kadirawelpillai Iswara, MD's license?

NPPES lists New York license number 115155, 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 Kadirawelpillai Iswara, MD prescribe under Medicare Part D?

In 2024, Kadirawelpillai Iswara, MD had 1,670 Medicare Part D claims for 582 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Kadirawelpillai Iswara, MD's MIPS final score?

The 2023 MIPS final score is 84 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.