NPPES file of Aug 9, 2026

John A. Kalapurakal, M.D.

Radiation Oncology Physician · Chicago, IL

John A. Kalapurakal, M.D. is a radiation oncology physician with a practice address in Chicago, Illinois, and NPI 1780659748, issued on Feb 22, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; 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
1780659748
Name
John A. Kalapurakal
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
Practice location
251 E Huron St, Chicago, IL 60611
Phone
(312) 926-2520
Enumerated
Feb 22, 2006
Record last updated
Jul 13, 2026
Fax
(312) 926-6524
Medicare enrollment
Enrolled (PECOS I20060608000160); 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 251 E Huron St

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

  1. Brian Abarbanel, MDPhysical Medicine & Rehabilitation Physician1124600291
  2. Mohamed Abazeed, MD, PHDRadiation Oncology Physician1205096609
  3. Allison AbbottCertified Registered Nurse Anesthetist1720446594
  4. Kathryn AbbottPsychiatry Physician1295537561
  5. Ramez Abdalla, M.B., B. CHNeuroradiology Physician1407410392
  6. Dena Abdelhameed, PHARM.D.Nuclear Pharmacist1073954301

Verify John A. Kalapurakal in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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 Illinois license search

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6.3 times the Medicare Part D claims of the average radiation oncology physician in 2024

840 Medicare Part D claims for 184 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.

  1. John Kalapurakal840
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl252 claims
  2. Bicalutamide163 claims
  3. Orgovyx137 claims
  4. Solifenacin Succinate70 claims
  5. Gabapentin56 claims
  6. Ciprofloxacin Hcl29 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): 94.1 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 score82.6
  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).

Industry payments in 2024: $28.78

1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Kalapurakal$28.78
  2. Specialty average$1,897.85

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

Bills Medicare through one group practice

  1. Northwestern Medical Faculty FoundationChicago, IL

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

Radiation Oncology Physician providers in Illinois

There are 277 radiation oncology physician records in Illinois.

Other radiation oncology physician records in Illinois

  1. Mohamed Abazeed, MD, PHDChicago, IL1205096609
  2. Christopher Abraham, MDSpringfield, IL1083900294
  3. Ross Abrams, M.D.Chicago, IL1356317564
  4. Iftekhar Ahmad, M.D.Rockford, IL1164641791
  5. Elke Aippersbach, M.D.,M.SC.,Oak Lawn, IL1285754895
  6. Adil Akthar, M.D.Warrenville, IL1598175531
  7. Neal Andruska, MD, PHDWarrenville, IL1972035798
  8. Sobiya Ansari, M.D.Chicago, IL1336554666
  9. Muzamil Arshad, MD/PHDChicago, IL1518429570
  10. Guhan Arumugam Shanmugasundaram, M.B.B.S.Chicago, IL1023800943

Common questions

What is John A. Kalapurakal, M.D.'s NPI number?

John A. Kalapurakal, M.D.'s National Provider Identifier (NPI) is 1780659748, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John A. Kalapurakal, M.D. located?

The NPPES record lists a practice address at 251 E Huron St, Chicago, IL, 60611. Phone: (312) 926-2520. Providers update this record themselves, so call before visiting.

How can I verify John A. Kalapurakal, M.D.'s license?

Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John A. Kalapurakal, M.D. prescribe under Medicare Part D?

In 2024, John A. Kalapurakal, M.D. had 840 Medicare Part D claims for 184 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is John A. Kalapurakal, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.1 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.