Mario C. Rosas, M.D.
Family Medicine Physician · Chicago, IL
Mario C. Rosas, M.D. is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1841369881, issued on Nov 6, 2006. Check the license (Illinois 036074065, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mario C. Rosas
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036074065 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2619 S Lawndale Ave, Chicago, IL 60623
- Phone
- (773) 522-2620
- Enumerated
- Nov 6, 2006
- Record last updated
- Sep 28, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (773) 522-2641
- Medicare enrollment
- Enrolled (PECOS I20080630000643); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Verify Mario C. Rosas 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 036074065Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% more Medicare Part D claims than the average family medicine physician in 2024
4,826 Medicare Part D claims for 294 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 67 claims were for opioids.
Most prescribed
- Atorvastatin Calcium410 claims
- Amlodipine Besylate165 claims
- Losartan Potassium162 claims
- Metformin Hcl161 claims
- Levothyroxine Sodium129 claims
- Omeprazole121 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.
Mario C. Rosas among 6,215 family medicine physician records in Illinois
Mario C. Rosas, 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1983 · median 2006 among the 3,714 with a school on file
- Record last updated2018 · 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).
1,593 family medicine physician records list a practice address in Chicago
They are 1,593 of the 63,379 NPPES records with a practice address in Chicago, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Chicago → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Gabrielle Barber, M.D.Chicago, IL 606231770520959
- David Buchanan, M.D.Chicago, IL 606231689611865
- Wayne Detmer, M.D.Chicago, IL 606231972558880
- Jose Deurrutia, M.D.Chicago, IL 606231831136647
- Howard Ehrman, M.D., M.P.H.Chicago, IL 606231770540585
- Kara Greeley, M.D.Chicago, IL 606231013954296
- Sandra Hoogland, M.D.Chicago, IL 606231578518320
- John Houchins, MDChicago, IL 606231740211911
Common questions
What is Mario C. Rosas, M.D.'s NPI number?
Mario C. Rosas, M.D.'s National Provider Identifier (NPI) is 1841369881, issued on Nov 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mario C. Rosas, M.D. located?
The NPPES record lists a practice address at 2619 S Lawndale Ave, Chicago, IL, 60623. Phone: (773) 522-2620. Providers update this record themselves, so call before visiting.
How can I verify Mario C. Rosas, M.D.'s license?
NPPES lists Illinois license number 036074065, 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 Mario C. Rosas, M.D. prescribe under Medicare Part D?
In 2024, Mario C. Rosas, M.D. had 4,826 Medicare Part D claims for 294 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.
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.