NPPES file of Aug 9, 2026

Mathai Karingada, M.D.

Internal Medicine Physician · Oak Brook, IL

Mathai Karingada, M.D. is an internal medicine physician with a practice address in Oak Brook, Illinois, and NPI 1831125988, issued on Jun 23, 2006. Check the license (Illinois 125046508, 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
1831125988
Name
Mathai Karingada
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
125046508 IL
Self-reported in NPPES; status is on the state search
Practice location
900 Jorie Blvd, Oak Brook, IL 60523
Phone
(630) 954-6700
Enumerated
Jun 23, 2006
Record last updated
Feb 24, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20060828000041); 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 internal medicine physician records → All 7,238 in Illinois → Look up another NPI →

Also registered at 900 Jorie Blvd

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

  1. Ghanshyam Agarwal, MDNeonatal-Perinatal Medicine Physician1932141777
  2. Pablo Arnecilla, M.D.Pediatrics Physician1841237401
  3. Harley Brooks, M.D.Adolescent Medicine (Internal Medicine) Physician1326080177
  4. Kevin Connolly, D.C.Chiropractor1073731808
  5. John Davis, M.D.Adolescent Medicine (Internal Medicine) Physician1154363372
  6. Marcia Dawson, M.D.Neonatal-Perinatal Medicine Physician1689611147

Verify Mathai Karingada 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 125046508    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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71% fewer Medicare Part D claims than the average internal medicine physician in 2024

920 Medicare Part D claims for 190 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 11 claims were for opioids.

  1. Mathai Karingada920
  2. Specialty average3,176

Most prescribed

  1. Furosemide150 claims
  2. Pantoprazole Sodium108 claims
  3. Atorvastatin Calcium106 claims
  4. Pioglitazone Hcl101 claims
  5. Levofloxacin38 claims
  6. Famotidine37 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.

One hospital affiliation

  1. Cgh Medical CenterSterling, IL · Acute Care Hospitals1 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.

Mathai Karingada among 7,238 internal medicine physician records in Illinois

Mathai Karingada, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2001 · median 2003 among the 3,580 with a school on file
  • Record last updated2015 · 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 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 internal medicine physician records list a practice address in Oak Brook

They are 15 of the 950 NPPES records with a practice address in Oak Brook, and 7,238 internal medicine physician records in Illinois.

All 7,238 in Illinois → Every provider in Oak Brook → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jennifer Candel, MDOak Brook, IL 605231164793949
  2. Richard Herbert, M.D.Oak Brook, IL 605231710045786
  3. Zaid Jabbar, M.D.Oak Brook, IL 605231730351115
  4. Meera Madappallil, M.D.Oak Brook, IL 605231699721142
  5. Ranjani Mohan, M.D.Oak Brook, IL 605231801017058
  6. Suman Narumanchi, M.D.Oak Brook, IL 605231962449439
  7. Fauzia Rana, M.D.Oak Brook, IL 605231538371893
  8. Robin Rothbard, M.D.Oak Brook, IL 605231801854856

Common questions

What is Mathai Karingada, M.D.'s NPI number?

Mathai Karingada, M.D.'s National Provider Identifier (NPI) is 1831125988, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mathai Karingada, M.D. located?

The NPPES record lists a practice address at 900 Jorie Blvd, Oak Brook, IL, 60523. Phone: (630) 954-6700. Providers update this record themselves, so call before visiting.

How can I verify Mathai Karingada, M.D.'s license?

NPPES lists Illinois license number 125046508, 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 Mathai Karingada, M.D. prescribe under Medicare Part D?

In 2024, Mathai Karingada, M.D. had 920 Medicare Part D claims for 190 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.