NPPES file of Aug 9, 2026

Niby Mathew, M.D.

Family Medicine Physician · Frankfort, IL

Niby Mathew, M.D. is a family medicine physician with a practice address in Frankfort, Illinois, and NPI 1184869125, issued on Dec 4, 2008. Check the license (Illinois 125-051772, 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
1184869125
Name
Niby Mathew
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
125-051772 IL
Self-reported in NPPES; status is on the state search
Practice location
23120 S Lagrange RD, Frankfort, IL 60423
Phone
(815) 464-5440
Enumerated
Dec 4, 2008
Record last updated
May 28, 2026
Medicare enrollment
Enrolled (PECOS I20090611000727); accepts Medicare assignment
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.
Download card Updates feed

8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →

Also registered at 23120 S Lagrange RD

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

  1. Bushra Alam, DOInternal Medicine Physician1083134118
  2. Rubina Baig, MDFamily Medicine Physician1659809879
  3. Joehar Hamdan, DOHematology & Oncology Physician1508062159
  4. Tahreer Shatat, DOFamily Medicine Physician1245677749

Verify Niby 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 125-051772    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

4% more Medicare Part D claims than the average family medicine physician in 2024

3,674 Medicare Part D claims for 331 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 149 claims were for opioids.

  1. Niby Mathew3,674
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium229 claims
  2. Levothyroxine Sodium142 claims
  3. Amlodipine Besylate129 claims
  4. Losartan Potassium124 claims
  5. Lisinopril110 claims
  6. Omeprazole98 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: $442.37

21 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Niby Mathew$442.37
  2. Specialty average$902.55

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

Bills Medicare through one group practice

  1. Riverside Health SystemBourbonnais, IL

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

Niby Mathew among 6,215 family medicine physician records in Illinois

Niby Mathew, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.

  • NPI issued2008 · 50% of these records are older, 46% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2005 · median 2006 among the 3,714 with a school on file
  • Record last updated2026 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 family medicine physician records list a practice address in Frankfort

They are 21 of the 669 NPPES records with a practice address in Frankfort, and 6,215 family medicine physician records in Illinois.

All 6,215 in Illinois → Every provider in Frankfort → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Titilayo Abiona, MDFrankfort, IL 604231407086515
  2. Robert Boll, D.O.Frankfort, IL 604231548217466
  3. Michelle Burns, D.O.Frankfort, IL 604231598780942
  4. Paul Chemello, D.O.Frankfort, IL 604231952499832
  5. Rosario De Castro, M.D.Frankfort, IL 604231356619530
  6. Therese Heenan, DOFrankfort, IL 604231467668285
  7. Denise Jackson, M.D.Frankfort, IL 604231871545772
  8. Kishor Jain, MDFrankfort, IL 604231568537355

Common questions

What is Niby Mathew, M.D.'s NPI number?

Niby Mathew, M.D.'s National Provider Identifier (NPI) is 1184869125, issued on Dec 4, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Niby Mathew, M.D. located?

The NPPES record lists a practice address at 23120 S Lagrange RD, Frankfort, IL, 60423. Phone: (815) 464-5440. Providers update this record themselves, so call before visiting.

How can I verify Niby Mathew, M.D.'s license?

NPPES lists Illinois license number 125-051772, 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 Niby Mathew, M.D. prescribe under Medicare Part D?

In 2024, Niby Mathew, M.D. had 3,674 Medicare Part D claims for 331 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.

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.