NPPES file of Aug 9, 2026

Leonardo Vargas, M.D.

Internal Medicine Physician · Glenview, IL

Leonardo Vargas, M.D. is an internal medicine physician with a practice address in Glenview, Illinois, and NPI 1245385699, issued on Jan 24, 2007. Check the license (Illinois 036098800, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245385699
Name
Leonardo Vargas
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036098800 IL
Self-reported in NPPES; status is on the state search
Practice location
1500 Waukegan RD, Glenview, IL 60025
Phone
(847) 998-0120
Enumerated
Jan 24, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(847) 998-0131
Medicare enrollment
Enrolled (PECOS I20100621000679); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Also registered at 1500 Waukegan RD

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

  1. Pamela Adatto, DPTPhysical Therapist1952533309
  2. Katelyn Benning, ATC/LAthletic Trainer1679769368
  3. Gina Costabile, DPTPhysical Therapist1902231798
  4. Jessica Curran, DPTPhysical Therapist1245528108
  5. Bryant Ekwinski, MPTPhysical Therapist1881840528
  6. Dennis Gelyana, M.D, M.P.HPsychiatry Physician1871600429

Verify Leonardo Vargas 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 036098800
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.3 times the Medicare Part D claims of the average internal medicine physician in 2024

7,206 Medicare Part D claims for 521 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 104 claims were for opioids.

  1. Leonardo Vargas7,206
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium701 claims
  2. Losartan Potassium367 claims
  3. Amlodipine Besylate357 claims
  4. Levothyroxine Sodium303 claims
  5. Omeprazole235 claims
  6. Rosuvastatin Calcium231 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.

The MIPS final score for 2023 (Medicare payment program): 94.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Northwestern Medical Faculty FoundationChicago, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Leonardo Vargas among 7,238 internal medicine physician records in Illinois

Leonardo Vargas, 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 2007, is newer than 39% of them.

  • NPI issued2007 · 39% of these records are older, 55% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1994 · median 2003 among the 3,580 with a school on file
  • Record last updated2007 · 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).

57 internal medicine physician records list a practice address in Glenview

They are 57 of the 2,545 NPPES records with a practice address in Glenview, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Reuben Cohen, MDGlenview, IL 600251457542912
  2. Laurel Doherty, MDGlenview, IL 600251861551657
  3. Johan Lane, MDGlenview, IL 600251881740561
  4. David Lerner, MDGlenview, IL 600251366501132
  5. Nancy Mantich, MDGlenview, IL 600251487713038
  6. Lynn Martin, MDGlenview, IL 600251003975558
  7. Nancy Novotny, M.D.Glenview, IL 600251811005630
  8. Rimma Polotskaya, MDGlenview, IL 600251316978117

Common questions

What is Leonardo Vargas, M.D.'s NPI number?

Leonardo Vargas, M.D.'s National Provider Identifier (NPI) is 1245385699, issued on Jan 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Leonardo Vargas, M.D. located?

The NPPES record lists a practice address at 1500 Waukegan RD, Glenview, IL, 60025. Phone: (847) 998-0120. Providers update this record themselves, so call before visiting.

How can I verify Leonardo Vargas, M.D.'s license?

NPPES lists Illinois license number 036098800, 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 Leonardo Vargas, M.D. prescribe under Medicare Part D?

In 2024, Leonardo Vargas, M.D. had 7,206 Medicare Part D claims for 521 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Leonardo Vargas, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.