NPPES file of Aug 9, 2026

Donna J. Nielsen, M.D

Family Medicine Physician · Chicago, IL

Donna J. Nielsen, M.D is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1821007345, issued on Aug 5, 2006. Check the license (Illinois 36105514, 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
1821007345
Name
Donna J. Nielsen
Credential
M.D
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
36105514 IL
Self-reported in NPPES; status is on the state search
Practice location
3860 W Ogden Ave, Chicago, IL 60623
Phone
(872) 588-3000
Enumerated
Aug 5, 2006
Record last updated
Jun 9, 2023
Fax
(872) 588-3021
Medicare enrollment
Enrolled (PECOS I20090520000506); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1997
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 family medicine physician records → All 6,215 in Illinois → Look up another NPI →

Also registered at 3860 W Ogden Ave

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

  1. Jeneson Abraham, P.A.Medical Physician Assistant1013975218
  2. Luisa AdameCounselor1255968160
  3. Grace Ahn, DDSDentist1518166743
  4. Similolu Akintorin, MDFamily Medicine Physician1033790407
  5. Edward Akinyemi, MDFamily Medicine Physician1609525104
  6. Lars Armainsson, MDInternal Medicine Physician1336259514

Verify Donna J. Nielsen 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 36105514    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

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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74% fewer Medicare Part D claims than the average family medicine physician in 2024

934 Medicare Part D claims for 153 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 14 claims were for opioids.

  1. Donna Nielsen934
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium67 claims
  2. Hydrochlorothiazide44 claims
  3. Amlodipine Besylate40 claims
  4. Losartan Potassium30 claims
  5. Trazodone Hcl26 claims
  6. Levothyroxine Sodium25 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. Lawndale Christian Health CenterChicago, IL

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

Donna J. Nielsen among 6,215 family medicine physician records in Illinois

Donna J. Nielsen, M.D is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1997 · median 2006 among the 3,714 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,593 family medicine physician records list a practice address in Chicago

They are 1,593 of the 63,379 NPPES records with a practice address in Chicago, and 6,215 family medicine physician records in Illinois.

All 6,215 in Illinois → Every provider in Chicago → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Gabrielle Barber, M.D.Chicago, IL 606231770520959
  2. David Buchanan, M.D.Chicago, IL 606231689611865
  3. Wayne Detmer, M.D.Chicago, IL 606231972558880
  4. Jose Deurrutia, M.D.Chicago, IL 606231831136647
  5. Howard Ehrman, M.D., M.P.H.Chicago, IL 606231770540585
  6. Kara Greeley, M.D.Chicago, IL 606231013954296
  7. Sandra Hoogland, M.D.Chicago, IL 606231578518320
  8. John Houchins, MDChicago, IL 606231740211911

Common questions

What is Donna J. Nielsen, M.D's NPI number?

Donna J. Nielsen, M.D's National Provider Identifier (NPI) is 1821007345, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Donna J. Nielsen, M.D located?

The NPPES record lists a practice address at 3860 W Ogden Ave, Chicago, IL, 60623. Phone: (872) 588-3000. Providers update this record themselves, so call before visiting.

How can I verify Donna J. Nielsen, M.D's license?

NPPES lists Illinois license number 36105514, 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 Donna J. Nielsen, M.D prescribe under Medicare Part D?

In 2024, Donna J. Nielsen, M.D had 934 Medicare Part D claims for 153 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.