NPPES file of Aug 9, 2026

Elizabeth Chung, M.D.

Medical Oncology Physician · Libertyville, IL

Elizabeth Chung, M.D. is a medical oncology physician with a practice address in Libertyville, Illinois, and NPI 1184652158, issued on Jun 29, 2006. Check the license (Illinois 036.118235, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184652158
Name
Elizabeth Chung
Credential
M.D.
Primary taxonomy
Medical Oncology Physician 207RX0202X
License numbers
036.118235 IL
A90970 CA
Self-reported in NPPES; status is on the state search
Practice location
1800 Hollister Dr, Libertyville, IL 60048
Phone
(847) 367-6781
Enumerated
Jun 29, 2006
Record last updated
Apr 8, 2025
Medicare enrollment
Enrolled (PECOS I20100120000834); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 2003
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 1800 Hollister Dr

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

  1. Jeff Arnold, D.C.Chiropractor1295776748
  2. Elizabeth Baruffi, PA-CPhysician Assistant1477749430
  3. Michelle Bolano, D.P.T.Student in an Organized Health Care Education/Training Program1750580049
  4. Robert Breit, M.D.Neuroradiology Physician1922080399
  5. Reni Butler, M.D.Diagnostic Radiology Physician1609876770
  6. Michael Cochran, M.D.Medical Oncology Physician1427041599

Verify Elizabeth Chung 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 036.118235    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

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3% fewer Medicare Part D claims than the average medical oncology physician in 2024

685 Medicare Part D claims for 171 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 37 claims were for opioids.

  1. Elizabeth Chung685
  2. Specialty average703

Most prescribed

  1. Anastrozole145 claims
  2. Eliquis76 claims
  3. Tamoxifen Citrate42 claims
  4. Letrozole32 claims
  5. Prednisone27 claims
  6. Allopurinol21 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.

Bills Medicare through one group practice

  1. Advocate Health And Hospitals CorporationGurnee, IL

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

Medical Oncology Physician providers in Illinois

There are 182 medical oncology physician records in Illinois.

All 182 in Illinois → Every provider in Libertyville →

Other medical oncology physician records in Illinois

  1. Ahmad Abu-HashyehMoline, IL1326525114
  2. Matthew Adess, MDHighland Park, IL1629166442
  3. Misbahuddin Ahmed, MDLombard, IL1922117811
  4. Syed Ahmed, MDOak Brook, IL1689867541
  5. Eugene Ahn, M.D.Chicago, IL1093911307
  6. Mebea Aklilu, MDChicago, IL1376527739
  7. Alhareth Alsayed, M.DSterling, IL1447601059
  8. Manik Amin, MDChicago, IL1265689889
  9. Saad Arain, M.D.Evanston, IL1104212992
  10. Mohammad Atiq, M.D.Chicago, IL1851719967

Common questions

What is Elizabeth Chung, M.D.'s NPI number?

Elizabeth Chung, M.D.'s National Provider Identifier (NPI) is 1184652158, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Chung, M.D. located?

The NPPES record lists a practice address at 1800 Hollister Dr, Libertyville, IL, 60048. Phone: (847) 367-6781. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Chung, M.D.'s license?

NPPES lists Illinois license number 036.118235, 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 Elizabeth Chung, M.D. prescribe under Medicare Part D?

In 2024, Elizabeth Chung, M.D. had 685 Medicare Part D claims for 171 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.