NPPES file of Aug 9, 2026

Sunil G. Mathews, M.D.

Emergency Medicine Physician · Naperville, IL

Sunil G. Mathews, M.D. is an emergency medicine physician with a practice address in Naperville, Illinois, and NPI 1821147125, issued on Jan 9, 2007. Check the license (Illinois 036-087446, 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
1821147125
Name
Sunil G. Mathews
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
036-087446 IL
Self-reported in NPPES; status is on the state search
Practice location
801 S Washington St, Naperville, IL 60540
Phone
(630) 527-3358
Enumerated
Jan 9, 2007
Record last updated
Nov 28, 2025
Fax
(630) 527-5018
Medicare enrollment
Enrolled (PECOS I20110113000975); 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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8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →

Also registered at 801 S Washington St

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

  1. Sean Adams, M.D.Anesthesiology Physician1598713661
  2. Saroosh Ahmed, MDEmergency Medicine Physician1639335078
  3. Faisal Akbari, M.DHospitalist Physician1740598705
  4. Catherine AlerNurse Practitioner1134584964
  5. Irfan Ali, DOHospitalist Physician1306427760
  6. Sivani Aluru, MDObstetrics & Gynecology Physician1275156325

Verify Sunil G. Mathews 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 036-087446    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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70% more Medicare Part D claims than the average emergency medicine physician in 2024

384 Medicare Part D claims for 249 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 48 claims were for opioids.

  1. Sunil Mathews384
  2. Specialty average226

Most prescribed

  1. Cephalexin43 claims
  2. Hydrocodone-Acetaminophen38 claims
  3. Ondansetron Odt32 claims
  4. Prednisone22 claims
  5. Pantoprazole Sodium20 claims
  6. Sulfamethoxazole-Trimethoprim18 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: $253.46

11 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sunil Mathews$253.46
  2. Specialty average$953.79

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

One hospital affiliation

  1. Edward HospitalNaperville, IL · Acute Care Hospitals3 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Sunil G. Mathews among 3,291 emergency medicine physician records in Illinois

Sunil G. Mathews, M.D. is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 32% of them.

  • NPI issued2007 · 32% of these records are older, 61% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1991 · median 2012 among the 1,867 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

59 emergency medicine physician records list a practice address in Naperville

They are 59 of the 4,634 NPPES records with a practice address in Naperville, and 3,291 emergency medicine physician records in Illinois.

All 3,291 in Illinois → Every provider in Naperville → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Mark Batts, MDNaperville, IL 605401619921228
  2. Kevin Collins, M.D.Naperville, IL 605401558345934
  3. Rick Gimbel, M.D.Naperville, IL 605401215012380
  4. Bassam Kawadry, MDNaperville, IL 605401790717502
  5. John Lee, M.D.Naperville, IL 605401932279965
  6. Megan McAllister, M.D.Naperville, IL 605401437191855
  7. Guy Miller, D.O.Naperville, IL 605401700866167
  8. Linda Mueller, MDNaperville, IL 605401992775803

Common questions

What is Sunil G. Mathews, M.D.'s NPI number?

Sunil G. Mathews, M.D.'s National Provider Identifier (NPI) is 1821147125, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sunil G. Mathews, M.D. located?

The NPPES record lists a practice address at 801 S Washington St, Naperville, IL, 60540. Phone: (630) 527-3358. Providers update this record themselves, so call before visiting.

How can I verify Sunil G. Mathews, M.D.'s license?

NPPES lists Illinois license number 036-087446, 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 Sunil G. Mathews, M.D. prescribe under Medicare Part D?

In 2024, Sunil G. Mathews, M.D. had 384 Medicare Part D claims for 249 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.