NPPES file of Aug 9, 2026

Natalia D. Dejneka, MD

Emergency Medicine Physician · Chicago, IL

Natalia D. Dejneka, MD is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1225041452, issued on Aug 15, 2006. Check the license (Illinois 036083923, 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
1225041452
Name
Natalia D. Dejneka
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
036083923 IL
72092 WI
Self-reported in NPPES; status is on the state search
Practice location
8012 S Crandon Ave, Chicago, IL 60617
Phone
(773) 356-5331
Enumerated
Aug 15, 2006
Record last updated
May 16, 2025
Fax
(773) 768-8154
Medicare enrollment
Enrolled (PECOS I20181016003845); accepts Medicare assignment
Medical or professional school
Chicago College Of Medicine And Surgery, 1989
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 8012 S Crandon Ave

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

  1. Rosalia Alvarez, PHARMACY THECNICIANPharmacy Technician1649860784
  2. Thomas Bahk, MDEmergency Medicine Physician1710912365
  3. Leonardo Chato, M.D.Surgery Physician1700975505
  4. Raoul Davion, M.D.Obstetrics & Gynecology Physician1679596456
  5. Kiljung Kim, M.D.Anesthesiology Physician1801995113
  6. Lorna Laguna, M.D.Anesthesiology Physician1225116619

Verify Natalia D. Dejneka 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 036083923
    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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85% fewer Medicare Part D claims than the average emergency medicine physician in 2024

33 Medicare Part D claims for 28 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Natalia Dejneka33
  2. Specialty average226

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. Concord Company OF Tennessee PLLCRochester, IN

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

Natalia D. Dejneka among 3,291 emergency medicine physician records in Illinois

Natalia D. Dejneka, MD is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 68% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1989 · median 2012 among the 1,867 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,310 emergency medicine physician records list a practice address in Chicago

They are 1,310 of the 63,379 NPPES records with a practice address in Chicago, and 3,291 emergency medicine physician records in Illinois.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Thomas Bahk, MDChicago, IL 606171710912365
  2. Greta Bell, M.D.Chicago, IL 606171952384562
  3. Monica BeszkaChicago, IL 606171134418130
  4. Peter Draper, MDChicago, IL 606171750433132
  5. Ephriam Grimes, M.D.Chicago, IL 606171164736294
  6. Craig Hicks, M.D.Chicago, IL 606171932141165
  7. Sara Hock, M.DChicago, IL 606171780948968
  8. Kierre Honore, MDChicago, IL 606171942221890

Common questions

What is Natalia D. Dejneka, MD's NPI number?

Natalia D. Dejneka, MD's National Provider Identifier (NPI) is 1225041452, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Natalia D. Dejneka, MD located?

The NPPES record lists a practice address at 8012 S Crandon Ave, Chicago, IL, 60617. Phone: (773) 356-5331. Providers update this record themselves, so call before visiting.

How can I verify Natalia D. Dejneka, MD's license?

NPPES lists Illinois license number 036083923, 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 Natalia D. Dejneka, MD prescribe under Medicare Part D?

In 2024, Natalia D. Dejneka, MD had 33 Medicare Part D claims for 28 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.