NPPES file of Aug 9, 2026

Christopher Walter Orenczak, DC

Chiropractor · Naperville, IL

Christopher Walter Orenczak, DC is a chiropractor with a practice address in Naperville, Illinois, and NPI 1992714216, issued on Aug 5, 2006. Check the license with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992714216
Name
Christopher Walter Orenczak
Credential
DC
Primary taxonomy
Chiropractor 111N00000X
Practice location
3607 Grassmere RD, Naperville, IL 60564
Phone
(360) 854-5551
Enumerated
Aug 5, 2006
Record last updated
Apr 2, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(630) 236-1339
Medicare enrollment
Enrolled (PECOS I20040513000651); accepts Medicare assignment
Medical or professional school
Palmer College Chiropractic - Davenport, 1999
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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Verify Christopher Walter Orenczak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck 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
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Christopher Walter Orenczak among 4,524 chiropractor records in Illinois

Christopher Walter Orenczak, DC is one of 4,524 chiropractor records with a practice address in Illinois. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 60% newer
  • In a Medicare fileNo · 17% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated1999 · median 2004 among the 1,912 with a school on file
  • Record last updated2008 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

141 chiropractor records list a practice address in Naperville

They are 141 of the 4,634 NPPES records with a practice address in Naperville, and 4,524 chiropractor records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 chiropractor records with the nearest ZIP codes

  1. William Buchar, D.C.Naperville, IL 605641790788792
  2. Andrew Czarniewski, DCNaperville, IL 605641013011493
  3. Kelly Czarniewski, DCNaperville, IL 605641437255767
  4. Michelle Dougherty, D.C.Naperville, IL 605641760543037
  5. Timothy Erickson, DCNaperville, IL 605641891788675
  6. Diane Ferris, D.C.Naperville, IL 605641356490262
  7. Mark Glynn, D.C.Naperville, IL 605641174655328
  8. Richard Hagmeyer, D.C.Naperville, IL 605641437206265

Common questions

What is Christopher Walter Orenczak, DC's NPI number?

Christopher Walter Orenczak, DC's National Provider Identifier (NPI) is 1992714216, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Walter Orenczak, DC located?

The NPPES record lists a practice address at 3607 Grassmere RD, Naperville, IL, 60564. Phone: (360) 854-5551. Providers update this record themselves, so call before visiting.

How can I verify Christopher Walter Orenczak, DC's license?

Search the Illinois board that licenses this profession; the NPPES record confirms identity 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. 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.