NPPES file of Aug 9, 2026

Douglas Krefman, D.C.

Chiropractor · Chicago, IL

Douglas Krefman, D.C. is a chiropractor with a practice address in Chicago, Illinois, and NPI 1609243310, issued on Aug 28, 2015. Check the license (Illinois 038012867, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1609243310
Name
Douglas Krefman
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
038012867 IL
Self-reported in NPPES; status is on the state search
Practice location
922 W Diversey Pkwy, Chicago, IL 60614
Phone
(773) 529-0057
Enumerated
Aug 28, 2015
Record last updated
Aug 28, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150929003301); accepts Medicare assignment
Medical or professional school
National College Of Chiropractic, 2015
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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8 nearest chiropractor records → All 4,524 in Illinois → Look up another NPI →

Also registered at 922 W Diversey Pkwy

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

  1. Thomas Donahue, D.C.Chiropractor1780692988
  2. William Givens, LMTMassage Therapist1124758321
  3. Lauren Goode, LMTMassage Therapist1174910400
  4. Tristyn HasmerChiropractor1487415386
  5. Douglas Krebs, DCChiropractor1558487728
  6. Tiffany White, RD, LDNRegistered Dietitian1255899365

Verify Douglas Krefman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 038012867    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
Find 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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Bills Medicare through 2 group practices

  1. Chicago Spine And Sports, P.C.Chicago, IL
  2. Krefman Chiropractic And Rehabilitation LLCGlenview, IL

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

Douglas Krefman among 4,524 chiropractor records in Illinois

Douglas Krefman, D.C. 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. Its NPI, issued in 2015, is newer than 76% of them.

  • NPI issued2015 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 17% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2015 · median 2004 among the 1,912 with a school on file
  • Record last updated2015 · 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).

Chiropractor providers in Illinois

There are 4,524 chiropractor records in Illinois.

All 4,524 in Illinois → Every provider in Chicago → Chiropractor nationwide →

The 8 chiropractor records with the nearest ZIP codes

  1. Steven Arculeo, D.C.Chicago, IL 606141134164379
  2. Richard Arrandt, DCChicago, IL 606141710092143
  3. Mark Baker, DCChicago, IL 606141619088804
  4. Justin Boyce, D.C.Chicago, IL 606141447273214
  5. Ronda Butler, D.C.Chicago, IL 606141770552036
  6. Thomas Donahue, D.C.Chicago, IL 606141780692988
  7. Janet Gutrich, D.C.Chicago, IL 606141215957774
  8. Victoria Lvova, CHChicago, IL 606141649229576

Common questions

What is Douglas Krefman, D.C.'s NPI number?

Douglas Krefman, D.C.'s National Provider Identifier (NPI) is 1609243310, issued on Aug 28, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Douglas Krefman, D.C. located?

The NPPES record lists a practice address at 922 W Diversey Pkwy, Chicago, IL, 60614. Phone: (773) 529-0057. Providers update this record themselves, so call before visiting.

How can I verify Douglas Krefman, D.C.'s license?

NPPES lists Illinois license number 038012867, as entered by the provider. 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. 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.