Guillermo Javier Ares Maisonet, MD
Pediatric Surgery Physician · Maywood, IL
Guillermo Javier Ares Maisonet, MD is a pediatric surgery physician with a practice address in Maywood, Illinois, and NPI 1942542105, issued on Mar 25, 2013. Check the license (Illinois 036139625, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Guillermo Javier Ares Maisonet
- Credential
- MD
- Primary taxonomy
- Pediatric Surgery Physician 2086S0120X
- License number
- 036139625 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2160 S 1St Ave, Maywood, IL 60153
- Phone
- (708) 216-9000
- Enumerated
- Mar 25, 2013
- Record last updated
- Aug 3, 2026
- Entity
- Type 1 · individual
8 nearest pediatric surgery physician records → All 70 in Illinois → Look up another NPI →
Also registered at 2160 S 1St Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Samer Abdelsamie, D.M.DOral and Maxillofacial Surgery (Dentist)1366732257
- Zaid Abdelsattar, MD, MSCThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1760793293
- Gerges Abdelsayed, MBBCH BAODiagnostic Radiology Physician1942902606
Verify Guillermo Javier Ares Maisonet 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 036139625Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $23.22
1 payment: food and beverage; the largest payer was Atricure, Inc. The 523 providers of this specialty with any payment received $5,419.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Guillermo Javier Ares Maisonet among 70 pediatric surgery physician records in Illinois
Guillermo Javier Ares Maisonet, MD is one of 70 pediatric surgery physician records with a practice address in Illinois. 47% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 83% of them.
- NPI issued2013 · 83% of these records are older, 13% newer
- In a Medicare fileYes · 47% of these records are
- In the CMS Doctors and Clinicians fileNo · 23% of these records are
- Record last updated2026 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0120X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Surgery Physician providers in Illinois
There are 70 pediatric surgery physician records in Illinois.
All 70 in Illinois → Every provider in Maywood → Pediatric Surgery Physician nationwide →
The 8 pediatric surgery physician records with the nearest ZIP codes
- Fizan Abdullah, M.D.Maywood, IL 601531689637472
- Alexander Dzakovic, MDMaywood, IL 601531902985385
- Heather Paddock, M.D.Maywood, IL 601531093913584
- Aimen Shaaban, MDMaywood, IL 601531184688756
- Brian GulackHoffman Estates, IL 601691396036406
- John Tackett, M.D.Hoffman Estates, IL 601691346532124
- Angel Bassuk, MDSkokie, IL 600771407089923
- John Wesley, MDVernon Hills, IL 600611124421680
Common questions
What is Guillermo Javier Ares Maisonet, MD's NPI number?
Guillermo Javier Ares Maisonet, MD's National Provider Identifier (NPI) is 1942542105, issued on Mar 25, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo Javier Ares Maisonet, MD located?
The NPPES record lists a practice address at 2160 S 1St Ave, Maywood, IL, 60153. Phone: (708) 216-9000. Providers update this record themselves, so call before visiting.
How can I verify Guillermo Javier Ares Maisonet, MD's license?
NPPES lists Illinois license number 036139625, 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.
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.