Weiser Eguia Cordero, M.D.
Internal Medicine Physician · Downers Grove, IL
Weiser Eguia Cordero, M.D. is an internal medicine physician with a practice address in Downers Grove, Illinois, and NPI 1063689719, issued on May 13, 2008. Check the license (Illinois 036123326, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Weiser Eguia Cordero
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036123326 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5207 Main St, Downers Grove, IL 60515
- Phone
- (630) 435-9888
- Enumerated
- May 13, 2008
- Record last updated
- Aug 4, 2023
- Fax
- (630) 963-1524
- Medicare enrollment
- Enrolled (PECOS I20101130001049); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 5207 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sharon Frigo Doyle, APNPNurse Practitioner1689248098
- Gigi Ip, MDInternal Medicine Physician1376519777
- Olivia Jenkins, PA-CPhysician Assistant1992659593
- Hajira Khan, MDInternal Medicine Physician1003307091
Verify Weiser Eguia Cordero in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036123326Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.3 times the Medicare Part D claims of the average internal medicine physician in 2024
13,673 Medicare Part D claims for 1,281 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 221 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,148 claims
- Amlodipine Besylate660 claims
- Levothyroxine Sodium659 claims
- Rosuvastatin Calcium485 claims
- Simvastatin474 claims
- Lisinopril455 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
- Dupage Medical Group LtdSchaumburg, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Weiser Eguia Cordero among 7,238 internal medicine physician records in Illinois
Weiser Eguia Cordero, 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 2008, is newer than 45% of them.
- NPI issued2008 · 45% of these records are older, 51% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2006 · median 2003 among the 3,580 with a school on file
- Record last updated2023 · 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).
33 internal medicine physician records list a practice address in Downers Grove
They are 33 of the 1,899 NPPES records with a practice address in Downers Grove, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Downers Grove → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Susan Badri, M.D.Downers Grove, IL 605151912985722
- Gigi Ip, MDDowners Grove, IL 605151376519777
- Robert King, MDDowners Grove, IL 605151104892041
- David Labotka, MDDowners Grove, IL 605151205803178
- Barbara Loeb, MDDowners Grove, IL 605151619976396
- Monica Martin, MDDowners Grove, IL 605151881693315
- Richard McPartlin, MDDowners Grove, IL 605151700853140
- Maziyar Mirhosseini, M.D.Downers Grove, IL 605151508870809
Common questions
What is Weiser Eguia Cordero, M.D.'s NPI number?
Weiser Eguia Cordero, M.D.'s National Provider Identifier (NPI) is 1063689719, issued on May 13, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Weiser Eguia Cordero, M.D. located?
The NPPES record lists a practice address at 5207 Main St, Downers Grove, IL, 60515. Phone: (630) 435-9888. Providers update this record themselves, so call before visiting.
How can I verify Weiser Eguia Cordero, M.D.'s license?
NPPES lists Illinois license number 036123326, 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 Weiser Eguia Cordero, M.D. prescribe under Medicare Part D?
In 2024, Weiser Eguia Cordero, M.D. had 13,673 Medicare Part D claims for 1,281 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.
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.