NPPES file of Aug 9, 2026

Samuel William Onusko, MD

Physical Medicine & Rehabilitation Physician · Wheaton, IL

Samuel William Onusko, MD is a physical medicine & rehabilitation physician with a practice address in Wheaton, Illinois, and NPI 1639674245, issued on Mar 26, 2018. Check the license (Illinois 036175980, 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
1639674245
Name
Samuel William Onusko
Credential
MD
Primary taxonomy
Physical Medicine & Rehabilitation Physician 208100000X
License numbers
036175980 IL
35.147098 OH
Self-reported in NPPES; status is on the state search
Practice location
26W171 Roosevelt RD, Wheaton, IL 60187
Phone
(630) 909-7000
Enumerated
Mar 26, 2018
Record last updated
Sep 23, 2025
Fax
(630) 909-7002
Medicare enrollment
Enrolled (PECOS I20250804001138); accepts Medicare assignment
Medical or professional school
University Of Toledo College Of Medicine, 2018
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 26W171 Roosevelt RD

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

  1. Omar Ahmad, DOPhysical Medicine & Rehabilitation Physician1629836929
  2. Norman Aliga, MDPhysical Medicine & Rehabilitation Physician1548335524
  3. Diane Amstutz, PHD.Clinical Psychologist1215005905
  4. Kathleen Andeway, PTPhysical Therapist1275116030
  5. Jaclyn Berlino, MOT, OTR/LOccupational Therapist1073196267
  6. Beth Bosak, OTR/LOccupational Therapist1083297337

Verify Samuel William Onusko 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 036175980
    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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63% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024

272 Medicare Part D claims for 69 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Samuel Onusko272
  2. Specialty average727

Most prescribed

  1. Baclofen68 claims
  2. Botox32 claims
  3. Gabapentin20 claims
  4. Pregabalin17 claims
  5. Tizanidine Hcl14 claims
  6. Carbidopa-Levodopa13 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.

Industry payments in 2024: $754.29

60 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 3,895 providers of this specialty with any payment received $1,237.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Samuel Onusko$754.29
  2. Specialty average$1,237.86

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Central Dupage Physician GroupWheaton, IL

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

Samuel William Onusko among 707 physical medicine & rehabilitation physician records in Illinois

Samuel William Onusko, MD is one of 707 physical medicine & rehabilitation physician records with a practice address in Illinois. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 65% of them.

  • NPI issued2018 · 65% of these records are older, 30% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileYes · 47% of these records are
  • Graduated2018 · median 2008 among the 329 with a school on file
  • Record last updated2025 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 physical medicine & rehabilitation physician records list a practice address in Wheaton

They are 31 of the 2,468 NPPES records with a practice address in Wheaton, and 707 physical medicine & rehabilitation physician records in Illinois.

The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes

  1. Norman Aliga, MDWheaton, IL 601871548335524
  2. Steven Bou, M.D.Wheaton, IL 601871295022002
  3. Robin Cohen, MDWheaton, IL 601871952441057
  4. Dolly Devara, M.D.Wheaton, IL 601871912096108
  5. Nelson Escobar, MDWheaton, IL 601871568530616
  6. Mary Keen, M.D.Wheaton, IL 601871831267921
  7. Richard Krieger, MDWheaton, IL 601871528136561
  8. Satheesh Muppavarapu, MDWheaton, IL 601871467529545

Common questions

What is Samuel William Onusko, MD's NPI number?

Samuel William Onusko, MD's National Provider Identifier (NPI) is 1639674245, issued on Mar 26, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Samuel William Onusko, MD located?

The NPPES record lists a practice address at 26W171 Roosevelt RD, Wheaton, IL, 60187. Phone: (630) 909-7000. Providers update this record themselves, so call before visiting.

How can I verify Samuel William Onusko, MD's license?

NPPES lists Illinois license number 036175980, 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 Samuel William Onusko, MD prescribe under Medicare Part D?

In 2024, Samuel William Onusko, MD had 272 Medicare Part D claims for 69 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. 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.