NPPES file of Aug 9, 2026

Brett Patrick Nelson, MD

Family Medicine Physician · Berwyn, IL

Brett Patrick Nelson, MD is a family medicine physician with a practice address in Berwyn, Illinois, and NPI 1700415049, issued on Apr 8, 2020. Check the license (Illinois 125076826, 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
1700415049
Name
Brett Patrick Nelson
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
125076826 IL
Self-reported in NPPES; status is on the state search
Practice location
3249 Oak Park Ave, Berwyn, IL 60402
Phone
(708) 783-9100
Enumerated
Apr 8, 2020
Record last updated
Oct 27, 2023
Medicare enrollment
Enrolled (PECOS I20231030000924); accepts Medicare assignment
Medical or professional school
R Franklin University Of Med & Sci/Chicago Medical School, 2020
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 3249 Oak Park Ave

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

  1. Gholamali Afshang, MDDiagnostic Radiology Physician1316925522
  2. Sumayyah Ahmed, PA-CPhysician Assistant1851084206
  3. Michelle Akan, CRNACertified Registered Nurse Anesthetist1376808683
  4. Angela Alcarraz Bedrillana, MDInternal Medicine Physician1033813720
  5. Haris Aleem, MDHospitalist Physician1063409795
  6. John Alexis, M.D.Emergency Medicine Physician1689608713

Verify Brett Patrick Nelson 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 125076826
    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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4% fewer Medicare Part D claims than the average family medicine physician in 2024

3,385 Medicare Part D claims for 680 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 205 claims were for opioids.

  1. Brett Nelson3,385
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium195 claims
  2. Hydrocodone-Acetaminophen131 claims
  3. Amlodipine Besylate110 claims
  4. Lisinopril106 claims
  5. Levothyroxine Sodium87 claims
  6. Ipratropium Bromide82 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. Southern California Permanente Medical GroupClaremont, CA

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

Brett Patrick Nelson among 6,215 family medicine physician records in Illinois

Brett Patrick Nelson, MD 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 2020, is newer than 81% of them.

  • NPI issued2020 · 81% of these records are older, 16% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2020 · 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).

99 family medicine physician records list a practice address in Berwyn

They are 99 of the 1,031 NPPES records with a practice address in Berwyn, and 6,215 family medicine physician records in Illinois.

The 8 family medicine physician records with the nearest ZIP codes

  1. Catherine Anichini, MDBerwyn, IL 604021023040904
  2. Blanca Baldoceda, MDBerwyn, IL 604021871533703
  3. Sheila Berndt, M.D.Berwyn, IL 604021134122617
  4. Phillip Boch, D.O.Berwyn, IL 604021699767186
  5. Mrudula Desai, MDBerwyn, IL 604021063470029
  6. Nejat Destani, M.D.Berwyn, IL 604021295738771
  7. Michael Gershberg, M.D.Berwyn, IL 604021679576029
  8. Matthew Hsieh, M.D.Berwyn, IL 604021174526511

Common questions

What is Brett Patrick Nelson, MD's NPI number?

Brett Patrick Nelson, MD's National Provider Identifier (NPI) is 1700415049, issued on Apr 8, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Brett Patrick Nelson, MD located?

The NPPES record lists a practice address at 3249 Oak Park Ave, Berwyn, IL, 60402. Phone: (708) 783-9100. Providers update this record themselves, so call before visiting.

How can I verify Brett Patrick Nelson, MD's license?

NPPES lists Illinois license number 125076826, 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 Brett Patrick Nelson, MD prescribe under Medicare Part D?

In 2024, Brett Patrick Nelson, MD had 3,385 Medicare Part D claims for 680 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.

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.