NPPES file of Aug 9, 2026

Preeti K. Parhar, MD

Radiation Oncology Physician · Downers Grove, IL

Preeti K. Parhar, MD is a radiation oncology physician with a practice address in Downers Grove, Illinois, and NPI 1164680393, issued on May 23, 2008. Check the license (Illinois 036146821, as entered in NPPES) 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
1164680393
Name
Preeti K. Parhar
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
036146821 IL
Self-reported in NPPES; status is on the state search
Practice location
3815 Highland Ave, Downers Grove, IL 60515
Phone
(630) 275-2300
Enumerated
May 23, 2008
Record last updated
Dec 27, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180728000157); accepts Medicare assignment
Medical or professional school
New York University School Of Medicine, 2004
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 3815 Highland Ave

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

  1. Sadiqa Abbas, M.D.Interventional Pain Medicine Physician1528010634
  2. Nicole Ahrens, CRNACertified Registered Nurse Anesthetist1578154340
  3. Aristides Alexander, M.D.Emergency Medicine Physician1881009082
  4. Yorleni Ambrosio, RN, CNSNeonatal Intensive Care Registered Nurse1720465065
  5. Manisa Baker, APNAcute Care Clinical Nurse Specialist1023479508
  6. Michelle BankheadSurgical Assistant1568921039

Verify Preeti K. Parhar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036146821
    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 Illinois 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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78% more Medicare Part D claims than the average radiation oncology physician in 2024

238 Medicare Part D claims for 88 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 45 claims were for opioids.

  1. Preeti Parhar238
  2. Specialty average134

Most prescribed

  1. Hydrocodone-Acetaminophen30 claims
  2. Tamsulosin Hcl25 claims
  3. Gabapentin20 claims
  4. Sucralfate16 claims
  5. Lidocaine Hcl Viscous13 claims
  6. Dexamethasone12 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).

Bills Medicare through one group practice

  1. Radiation Oncology Consultants, LtdWarrenville, IL

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

Preeti K. Parhar among 277 radiation oncology physician records in Illinois

Preeti K. Parhar, MD is one of 277 radiation oncology physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 37% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2004 · median 2004 among the 184 with a school on file
  • Record last updated2021 · 49% 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 Illinois 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 Illinois

There are 277 radiation oncology physician records in Illinois.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. William Fischer, M.D.Hinsdale, IL 605211275791907
  2. William Hartsell, M.D.Hinsdale, IL 605211770574881
  3. Kapila Kalakota, M.D.Hinsdale, IL 605211841428281
  4. Chirag Modi, M.D.Hinsdale, IL 605211649701087
  5. Patrick Sweeney, M.D.Hinsdale, IL 605211316938384
  6. Sumita Bhatia, MDAurora, IL 605041548467459
  7. Sea Chen, M.D., PH.D.Aurora, IL 605041518113455
  8. Julia Choo, MDAurora, IL 605041114094042

Common questions

What is Preeti K. Parhar, MD's NPI number?

Preeti K. Parhar, MD's National Provider Identifier (NPI) is 1164680393, issued on May 23, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Preeti K. Parhar, MD located?

The NPPES record lists a practice address at 3815 Highland Ave, Downers Grove, IL, 60515. Phone: (630) 275-2300. Providers update this record themselves, so call before visiting.

How can I verify Preeti K. Parhar, MD's license?

NPPES lists Illinois license number 036146821, as entered by the provider. 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 Preeti K. Parhar, MD prescribe under Medicare Part D?

In 2024, Preeti K. Parhar, MD had 238 Medicare Part D claims for 88 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is Preeti K. Parhar, MD'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.