NPPES file of Aug 9, 2026

Antonio Barrios, M.D.

Internal Medicine Physician · Oak Park, IL

Antonio Barrios, M.D. is an internal medicine physician with a practice address in Oak Park, Illinois, and NPI 1609220276, issued on Apr 20, 2016. Check the license (Illinois 036148970, 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
1609220276
Name
Antonio Barrios
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036148970 IL
Self-reported in NPPES; status is on the state search
Practice location
3 Erie CT Ste L700, Oak Park, IL 60302
Phone
(708) 763-1222
Enumerated
Apr 20, 2016
Record last updated
Dec 5, 2022
Fax
(708) 763-1471
Medicare enrollment
Enrolled (PECOS I20190627000682); accepts Medicare assignment
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 3 Erie CT Ste L700

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

  1. Mohammed Ahmed, DOHospitalist Physician1932691672
  2. Thomas Albert, D.C., M.D.Internal Medicine Physician1457465098
  3. Sankha Banerjee, MDHospitalist Physician1265939169
  4. Scott Leikin, D.O.Critical Care Medicine (Internal Medicine) Physician1588079479
  5. Afshan Mohiuddin, MDInternal Medicine Physician1477808053
  6. Michael SadekInternal Medicine Physician1003445222

Verify Antonio Barrios 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 036148970    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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89% fewer Medicare Part D claims than the average internal medicine physician in 2024

358 Medicare Part D claims for 177 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 32 claims were for opioids.

  1. Antonio Barrios358
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium21 claims
  2. Pantoprazole Sodium21 claims
  3. Amoxicillin-Clavulanate Potass20 claims
  4. Eliquis18 claims
  5. Tramadol Hcl16 claims
  6. Metoprolol Succinate15 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 2 group practices

  1. Rush Oak Park Physicians Group Adult MedicineOak Park, IL
  2. Rush University Medical GroupOak Park, IL

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

62 internal medicine physician records list a practice address in Oak Park

They are 62 of the 2,307 NPPES records with a practice address in Oak Park, and 7,238 internal medicine physician records in Illinois.

All 62 in Oak Park → All 7,238 in Illinois → Every provider in Oak Park →

Other internal medicine physician records in Illinois

  1. Peter Abadeer, D.O.Bloomington, IL1760469522
  2. Motaz Abas, MDPeoria, IL1215510201
  3. Elias Abate, M.D.Chicago, IL1336712199
  4. Maliha Abbas, D.O.Chicago, IL1174963920
  5. Zareena Abbas, MDChicago, IL1427078872
  6. Abu Abbasi, MDChicago, IL1083243877
  7. Ayesha Abbasi, MDChicago, IL1376216705
  8. Khalda Abbasi, MDNaperville, IL1487705240
  9. Elmer Abbo, MDBurr Ridge, IL1710048541
  10. Paul Abbo, M.D.River Forest, IL1083693378

Common questions

What is Antonio Barrios, M.D.'s NPI number?

Antonio Barrios, M.D.'s National Provider Identifier (NPI) is 1609220276, issued on Apr 20, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Antonio Barrios, M.D. located?

The NPPES record lists a practice address at 3 Erie CT Ste L700, Oak Park, IL, 60302. Phone: (708) 763-1222. Providers update this record themselves, so call before visiting.

How can I verify Antonio Barrios, M.D.'s license?

NPPES lists Illinois license number 036148970, 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 Antonio Barrios, M.D. prescribe under Medicare Part D?

In 2024, Antonio Barrios, M.D. had 358 Medicare Part D claims for 177 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.