Mauricio Villarreal, M.D.
Critical Care Medicine (Internal Medicine) Physician · Oak Lawn, IL
Mauricio Villarreal, M.D. is a critical care medicine (internal medicine) physician with a practice address in Oak Lawn, Illinois, and NPI 1770978777, issued on Apr 6, 2015. Check the license (Illinois 036-144641, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mauricio Villarreal
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License numbers
- 036-144641 IL
036144641 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4440W 95TH St, Oak Lawn, IL 60453
- Phone
- (708) 684-5673
- Enumerated
- Apr 6, 2015
- Record last updated
- Aug 1, 2022
- Fax
- (708) 684-2500
- Medicare enrollment
- Enrolled (PECOS I20220714003341); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 281 in Illinois → Look up another NPI →
Verify Mauricio Villarreal 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 036-144641Check 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: $359.42
7 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 2,708 providers of this specialty with any payment received $2,958.68 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.
Bills Medicare through one group practice
- Advocate Health And Hospitals CorporationOak Lawn, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mauricio Villarreal among 281 critical care medicine (internal medicine) physician records in Illinois
Mauricio Villarreal, M.D. is one of 281 critical care medicine (internal medicine) physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 68% of them.
- NPI issued2015 · 68% of these records are older, 28% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2015 · median 2008 among the 226 with a school on file
- Record last updated2022 · 22% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
33 critical care medicine (internal medicine) physician records list a practice address in Oak Lawn
They are 33 of the 2,993 NPPES records with a practice address in Oak Lawn, and 281 critical care medicine (internal medicine) physician records in Illinois.
All 281 in Illinois → Every provider in Oak Lawn → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Isis Duran, MDOak Lawn, IL 604531891943619
- Kristopher Fultz, DOOak Lawn, IL 604531083842439
- Faiza Hashmi, MDOak Lawn, IL 604531972812774
- Nureain Mirza, MDOak Lawn, IL 604531205876414
- Zulfiqar Mohammad, MDOak Lawn, IL 604531902834633
- Vijayakumar Nair, MD, FACSOak Lawn, IL 604531891752234
- Karen O'Mara, D.O.Oak Lawn, IL 604531235112269
- Bharati Prasad, M.D.Oak Lawn, IL 604531033300090
Common questions
What is Mauricio Villarreal, M.D.'s NPI number?
Mauricio Villarreal, M.D.'s National Provider Identifier (NPI) is 1770978777, issued on Apr 6, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mauricio Villarreal, M.D. located?
The NPPES record lists a practice address at 4440W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 684-5673. Providers update this record themselves, so call before visiting.
How can I verify Mauricio Villarreal, M.D.'s license?
NPPES lists Illinois license number 036-144641, 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.