NPPES file of Aug 9, 2026

Elizabeth M. Mathew, MD

Family Medicine Physician · Oak Park, IL

Elizabeth M. Mathew, MD is a family medicine physician with a practice address in Oak Park, Illinois, and NPI 1104389816, issued on Apr 9, 2019. Check the license (Illinois 036173170, 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
1104389816
Name
Elizabeth M. Mathew
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
036173170 IL
Self-reported in NPPES; status is on the state search
Practice location
1100 Lake St Ste 230, Oak Park, IL 60301
Phone
(331) 221-9001
Enumerated
Apr 9, 2019
Record last updated
May 12, 2026
Fax
(331) 221-2759
Medicare enrollment
Enrolled (PECOS I20250507001922); 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 1100 Lake St Ste 230

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

  1. Ida Ahmady, DOFamily Medicine Physician1255081873
  2. Megan Helms, MDFamily Medicine Physician1881344240
  3. Mary Hutton, MDFamily Medicine Physician1164415808
  4. Katherine Lynch, MDFamily Medicine Physician1821038720
  5. Forrest Robinson, DOFamily Medicine Physician1740283803
  6. Teresa Smith, LCSWClinical Social Worker1609394212

Verify Elizabeth M. Mathew 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 036173170
    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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46% fewer Medicare Part D claims than the average family medicine physician in 2024

1,920 Medicare Part D claims for 358 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 31 claims were for opioids.

  1. Elizabeth Mathew1,920
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium98 claims
  2. Levothyroxine Sodium74 claims
  3. Metoprolol Succinate68 claims
  4. Gabapentin62 claims
  5. Lisinopril56 claims
  6. Omeprazole56 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. Endeavor Health Medical GroupEvanston, IL

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

86 family medicine physician records list a practice address in Oak Park

They are 86 of the 2,307 NPPES records with a practice address in Oak Park, and 6,215 family medicine physician records in Illinois.

Other family medicine physician records in Illinois

  1. Jon Aagaard, MDWheaton, IL1750496923
  2. Napoleon Abando, MDWoodstock, IL1003972753
  3. Nikka Abaricia, MDChicago, IL1790366342
  4. Mohemmed AbbasChicago, IL1609612522
  5. Muhammad AbbasAlton, IL1588341556
  6. Syed AbbasWest Dundee, IL1972733103
  7. Stefanie AbbottMaywood, IL1861137457
  8. Roann Abdeladl, MDEvanston, IL1437087103
  9. Ahmed Abdelkader, MDChicago, IL1659104230
  10. Guy Abderholden, MDAntioch, IL1902899792

Common questions

What is Elizabeth M. Mathew, MD's NPI number?

Elizabeth M. Mathew, MD's National Provider Identifier (NPI) is 1104389816, issued on Apr 9, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth M. Mathew, MD located?

The NPPES record lists a practice address at 1100 Lake St Ste 230, Oak Park, IL, 60301. Phone: (331) 221-9001. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth M. Mathew, MD's license?

NPPES lists Illinois license number 036173170, 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 Elizabeth M. Mathew, MD prescribe under Medicare Part D?

In 2024, Elizabeth M. Mathew, MD had 1,920 Medicare Part D claims for 358 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.