NPPES file of Aug 9, 2026

A. K. Mathew, M.D.

Endocrinology, Diabetes & Metabolism Physician · Chicago, IL

A. K. Mathew, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Chicago, Illinois, and NPI 1992817191, issued on Aug 31, 2006. Check the license (Illinois 036050312, 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
1992817191
Name
A. K. Mathew
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
036050312 IL
Self-reported in NPPES; status is on the state search
Practice location
4177 S Archer Ave, Chicago, IL 60632
Phone
(773) 254-2222
Enumerated
Aug 31, 2006
Record last updated
Jan 27, 2025
Fax
(773) 254-8444
Medicaid ID
036050312 IL
Medicare enrollment
Enrolled (PECOS I20101230000346); 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 endocrinology, diabetes & metabolism physician records → All 436 in Illinois → Look up another NPI →

Also registered at 4177 S Archer Ave

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

  1. Cicely Brooks, PA- CPhysician Assistant1245507839
  2. Szu-Hsien Chen, AGPCNP-BCPrimary Care Nurse Practitioner1790573681
  3. Dorenda Lewis, NPAdult Health Nurse Practitioner1407197841
  4. Kenneth Martin, DCChiropractor1689872509
  5. Ashley MultaniFamily Medicine Physician1003305020
  6. Damaris Peralta, APNFamily Nurse Practitioner1043752421

Verify A. K. 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 036050312    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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38% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

1,621 Medicare Part D claims for 100 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. A. Mathew1,621
  2. Specialty average2,630

Most prescribed

  1. Metoprolol Succinate70 claims
  2. Levothyroxine Sodium66 claims
  3. Losartan Potassium63 claims
  4. Amlodipine Besylate59 claims
  5. Potassium Chloride58 claims
  6. Metformin Hcl47 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: $136.65

6 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. A. Mathew$136.65
  2. Specialty average$5,742.15

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

A. K. Mathew among 436 endocrinology, diabetes & metabolism physician records in Illinois

A. K. Mathew, M.D. is one of 436 endocrinology, diabetes & metabolism physician records with a practice address in Illinois. 85% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 62% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1969 · median 2006 among the 295 with a school on file
  • Record last updated2025 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Illinois

There are 436 endocrinology, diabetes & metabolism physician records in Illinois.

All 436 in Illinois → Every provider in Chicago → Endocrinology, Diabetes & Metabolism Physician nationwide →

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Axa Maria Yosmar Anaya Noubleau, M.D.Chicago, IL 606321932518750
  2. Wahid Kassar, M.D.Chicago, IL 606311144203647
  3. Alan Reich, MDChicago, IL 606311932207487
  4. Andree De Bustros, M.D.Chicago, IL 606291932108545
  5. Mahwash Siddiqui, M.DChicago, IL 606291396291183
  6. Renee Aronsohn, MDChicago, IL 606371831356070
  7. Rebecca Brown, M.D.Chicago, IL 606371336193671
  8. Ronald CohenChicago, IL 606371437211463

Common questions

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

A. K. Mathew, M.D.'s National Provider Identifier (NPI) is 1992817191, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is A. K. Mathew, M.D. located?

The NPPES record lists a practice address at 4177 S Archer Ave, Chicago, IL, 60632. Phone: (773) 254-2222. Providers update this record themselves, so call before visiting.

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

NPPES lists Illinois license number 036050312, 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 A. K. Mathew, M.D. prescribe under Medicare Part D?

In 2024, A. K. Mathew, M.D. had 1,621 Medicare Part D claims for 100 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.