NPPES file of Aug 9, 2026

Christopher Zallek

Neurology Physician · Peoria, IL

Christopher Zallek is a neurology physician with a practice address in Peoria, Illinois, and NPI 1548368822, issued on Sep 20, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548368822
Name
Christopher Zallek
Primary taxonomy
Neurology Physician 2084N0400X
Practice location
100 NE Randolph Ave, Peoria, IL 61606
Phone
(309) 624-8500
Enumerated
Sep 20, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(309) 655-8552
Medicare enrollment
Enrolled (PECOS I20100514000247); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 1992
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 100 NE Randolph Ave

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

  1. Mamta Arora, P.T.Physical Therapist1437166907
  2. Bethany Atterberry, P.T.Physical Therapist1174683130
  3. Amy BeckerSpeech-Language Pathologist1982857744
  4. Paul BennettPhysical Medicine & Rehabilitation Physician1780933770
  5. Julia Biernot, M.D.Neurology Physician1700034113
  6. Gregory BlumeNeurology Physician1326146994

Verify Christopher Zallek 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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92% fewer Medicare Part D claims than the average neurology physician in 2024

111 Medicare Part D claims for 40 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Christopher Zallek111
  2. Specialty average1,370

Most prescribed

  1. Prednisone26 claims
  2. Evrysdi11 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. Osf Multi-Specialty GroupPeoria, IL

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

Christopher Zallek among 952 neurology physician records in Illinois

Christopher Zallek is one of 952 neurology physician records with a practice address in Illinois. 79% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 68% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1992 · median 2006 among the 573 with a school on file
  • Record last updated2007 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Illinois

There are 952 neurology physician records in Illinois.

The 8 neurology physician records with the nearest ZIP codes

  1. Julia Biernot, M.D.Peoria, IL 616061700034113
  2. Gregory BlumePeoria, IL 616061326146994
  3. Dennis GarwackiPeoria, IL 616061417055922
  4. Shanta MattaiPeoria, IL 616061609974096
  5. Reuben Valenzuela, M.D.Peoria, IL 616061922328103
  6. Sarah ZallekPeoria, IL 616061467543942
  7. M. Fraser, M.D.Peoria, IL 616051093928566
  8. Joshua Chisholm, D.O.Peoria, IL 616031477903219

Common questions

What is Christopher Zallek's NPI number?

Christopher Zallek's National Provider Identifier (NPI) is 1548368822, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Zallek located?

The NPPES record lists a practice address at 100 NE Randolph Ave, Peoria, IL, 61606. Phone: (309) 624-8500. Providers update this record themselves, so call before visiting.

How can I verify Christopher Zallek'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 Christopher Zallek prescribe under Medicare Part D?

In 2024, Christopher Zallek had 111 Medicare Part D claims for 40 beneficiaries; the average among neurology physician prescribers was 1,370. 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.

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.