NPPES file of Aug 9, 2026

Anthony W. Delorenzo, D.O.

Internal Medicine Physician · Willowbrook, IL

Anthony W. Delorenzo, D.O. is an internal medicine physician with a practice address in Willowbrook, Illinois, and NPI 1851477236, issued on Oct 28, 2006. Check the license (Illinois 036089038, 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
1851477236
Name
Anthony W. Delorenzo
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036089038 IL
Self-reported in NPPES; status is on the state search
Practice location
6847 Kingery Hwy, Willowbrook, IL 60527
Phone
(630) 655-9555
Enumerated
Oct 28, 2006
Record last updated
Mar 7, 2023
Fax
(630) 655-9595
Medicare enrollment
Enrolled (PECOS I20070327000139); 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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Verify Anthony W. Delorenzo 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 036089038
    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

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26% more Medicare Part D claims than the average internal medicine physician in 2024

3,998 Medicare Part D claims for 213 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 48 claims were for opioids.

  1. Anthony Delorenzo3,998
  2. Specialty average3,176

Most prescribed

  1. Rosuvastatin Calcium197 claims
  2. Atorvastatin Calcium166 claims
  3. Losartan Potassium130 claims
  4. Tamsulosin Hcl108 claims
  5. Amlodipine Besylate106 claims
  6. Repatha Sureclick106 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): 82.5 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 score100.0
  2. Costout of 100 · 30%41.8
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Industry payments in 2024: $861.16

38 payments; by number, the most common kind was food and beverage; the largest payer was Corcept Therapeutics. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Anthony Delorenzo$861.16
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Anthony W. Delorenzo among 7,238 internal medicine physician records in Illinois

Anthony W. Delorenzo, D.O. 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1992 · median 2003 among the 3,580 with a school on file
  • Record last updated2023 · 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).

7 internal medicine physician records list a practice address in Willowbrook

They are 7 of the 453 NPPES records with a practice address in Willowbrook, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Muhammad Ali, MDWillowbrook, IL 605271508898362
  2. Christopher Camilleri, DOBurr Ridge, IL 605271295710044
  3. Homer Diadula, M.D.Burr Ridge, IL 605271134105232
  4. Daniel Grzegorek, D.O.Willowbrook, IL 605271487651337
  5. Farzana Iqbal, M.D.Burr Ridge, IL 605271851359939
  6. Anto Maliakkal, M.D. H.M.D.CBurr Ridge, IL 605271558376368
  7. Linda Palumbo, M.D.Chicago, IL 605271215994264
  8. Jesse Park, MDBurr Ridge, IL 605271215042072

Common questions

What is Anthony W. Delorenzo, D.O.'s NPI number?

Anthony W. Delorenzo, D.O.'s National Provider Identifier (NPI) is 1851477236, issued on Oct 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Anthony W. Delorenzo, D.O. located?

The NPPES record lists a practice address at 6847 Kingery Hwy, Willowbrook, IL, 60527. Phone: (630) 655-9555. Providers update this record themselves, so call before visiting.

How can I verify Anthony W. Delorenzo, D.O.'s license?

NPPES lists Illinois license number 036089038, 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 W. Delorenzo, D.O. prescribe under Medicare Part D?

In 2024, Anthony W. Delorenzo, D.O. had 3,998 Medicare Part D claims for 213 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Anthony W. Delorenzo, D.O.'s MIPS final score?

The 2023 MIPS final score is 82.5 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.