Anthony S. Leazzo, DO
Family Medicine Physician · Oakbrook Terrace, IL
Anthony S. Leazzo, DO is a family medicine physician with a practice address in Oakbrook Terrace, Illinois, and NPI 1912056995, issued on Jan 9, 2007. Check the license (Illinois 036111542, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Anthony S. Leazzo
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036111542 IL
Self-reported in NPPES; status is on the state search - Practice location
- 117W755 Butterfield Road, Oakbrook Terrace, IL 60181
- Phone
- (312) 818-4650
- Enumerated
- Jan 9, 2007
- Record last updated
- Jul 24, 2026
- Medicaid ID
- 036111542 IL
- Medicare enrollment
- Enrolled (PECOS I20050401000046); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1998
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 117W755 Butterfield Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aderemi LawalFamily Nurse Practitioner1801540216
Verify Anthony S. Leazzo 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 036111542Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% more Medicare Part D claims than the average family medicine physician in 2024
5,178 Medicare Part D claims for 736 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 84 claims were for opioids.
Most prescribed
- Atorvastatin Calcium462 claims
- Levothyroxine Sodium344 claims
- Lisinopril196 claims
- Metoprolol Succinate150 claims
- Amlodipine Besylate143 claims
- Losartan Potassium140 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Morris HospitalMorris, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anthony S. Leazzo among 6,215 family medicine physician records in Illinois
Anthony S. Leazzo, DO 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 50% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1998 · median 2006 among the 3,714 with a school on file
- Record last updated2026 · 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).
8 family medicine physician records list a practice address in Oakbrook Terrace
They are 8 of the 282 NPPES records with a practice address in Oakbrook Terrace, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Oakbrook Terrace → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jibran Ahmed, M.D.Oakbrook Terrace, IL 601811407292246
- Merrill Galera, MDOakbrook Terrace, IL 601811821060757
- Charlie Gude, M.D.Oakbrook Terrace, IL 601811336202894
- Eyad Homedi, M.D.Villa Park, IL 601811427034073
- Jawwad Hussain, M.D.Oakbrook Terrace, IL 601811336434935
- Torra Jones, MDOakbrook Terrace, IL 601811275586596
- Anthony Lin, MDVilla Park, IL 601811548258197
- Richard Novak, M.D.Villa Park, IL 601811154458321
Common questions
What is Anthony S. Leazzo, DO's NPI number?
Anthony S. Leazzo, DO's National Provider Identifier (NPI) is 1912056995, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Anthony S. Leazzo, DO located?
The NPPES record lists a practice address at 117W755 Butterfield Road, Oakbrook Terrace, IL, 60181. Phone: (312) 818-4650. Providers update this record themselves, so call before visiting.
How can I verify Anthony S. Leazzo, DO's license?
NPPES lists Illinois license number 036111542, 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 Anthony S. Leazzo, DO prescribe under Medicare Part D?
In 2024, Anthony S. Leazzo, DO had 5,178 Medicare Part D claims for 736 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Anthony S. Leazzo, DO'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.