NPPES file of Aug 9, 2026

Robia Byas, M.D.

Internal Medicine Physician · Chicago, IL

Robia Byas, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1093748758, issued on Jul 8, 2006. Check the license (Illinois 036-112176, 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
1093748758
Name
Robia Byas
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036-112176 IL
Self-reported in NPPES; status is on the state search
Practice location
9831 S Western Ave, Chicago, IL 60643
Phone
(773) 445-3500
Enumerated
Jul 8, 2006
Record last updated
May 17, 2022
Medicare enrollment
Enrolled (PECOS I20041209000791); accepts Medicare assignment
Medical or professional school
University College Of Medicine, 2001
Telehealth
Offers telehealth (CMS)
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 9831 S Western Ave

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

  1. Robert Anthony, PAPhysician Assistant1518049220
  2. Evelyn Bell, M.D.Family Medicine Physician1063526242
  3. Mylaun Blackwell, MDInternal Medicine Physician1841993102
  4. Richard Bone, M.D.Gastroenterology Physician1407887938
  5. Patrice Burch, MDFamily Medicine Physician1679508071
  6. Patricia Burke, M.D.Geriatric Medicine (Internal Medicine) Physician1518042787

Verify Robia Byas 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 036-112176
    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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3.2 times the Medicare Part D claims of the average internal medicine physician in 2024

10,034 Medicare Part D claims for 726 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 241 claims were for opioids.

  1. Robia Byas10,034
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium685 claims
  2. Amlodipine Besylate637 claims
  3. Losartan Potassium478 claims
  4. Metoprolol Succinate306 claims
  5. Gabapentin273 claims
  6. Lisinopril209 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. Advocate Health And Hospitals CorporationChicago, IL

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

2,867 internal medicine physician records list a practice address in Chicago

They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.

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 Robia Byas, M.D.'s NPI number?

Robia Byas, M.D.'s National Provider Identifier (NPI) is 1093748758, issued on Jul 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robia Byas, M.D. located?

The NPPES record lists a practice address at 9831 S Western Ave, Chicago, IL, 60643. Phone: (773) 445-3500. Providers update this record themselves, so call before visiting.

How can I verify Robia Byas, M.D.'s license?

NPPES lists Illinois license number 036-112176, 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 Robia Byas, M.D. prescribe under Medicare Part D?

In 2024, Robia Byas, M.D. had 10,034 Medicare Part D claims for 726 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.

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.