NPPES file of Aug 9, 2026

John L. Visconti, DO

Medical Oncology Physician · Shiloh, IL

John L. Visconti, DO is a medical oncology physician with a practice address in Shiloh, Illinois, and NPI 1033167846, issued on May 4, 2006. Check the license (Illinois 036114479, 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
1033167846
Name
John L. Visconti
Credential
DO
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
036114479 IL
Self-reported in NPPES; status is on the state search
Practice location
1418 Cross St, Shiloh, IL 62269
Phone
(618) 607-1340
Enumerated
May 4, 2006
Record last updated
Apr 21, 2025
Fax
(618) 622-9724
Medicaid ID
246964001 MO
Medicare enrollment
Enrolled (PECOS I20051202000549); accepts Medicare assignment
Medical or professional school
Kansas City University Of Med & Biosciences, College Of Osteo Med, 1990
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 1418 Cross St

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

  1. Amanda Allen, AGNPGerontology Nurse Practitioner1346999315
  2. Corey Brooks, PAPhysician Assistant1134466485
  3. Alfred Greco, MDMedical Oncology Physician1073501607
  4. Brett Herzog, MD PHDMedical Oncology Physician1023499282
  5. Paul Kogan, MDUrology Physician1023377736
  6. Staci Ladowitz, PAMedical Physician Assistant1639711963

Verify John L. Visconti 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 036114479
    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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8.4 times the Medicare Part D claims of the average medical oncology physician in 2024

5,918 Medicare Part D claims for 680 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 490 claims were for opioids.

  1. John Visconti5,918
  2. Specialty average703

Most prescribed

  1. Anastrozole360 claims
  2. Prednisone355 claims
  3. Ondansetron Hcl279 claims
  4. Gabapentin259 claims
  5. Pantoprazole Sodium239 claims
  6. Tamoxifen Citrate230 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 practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score71.5
  2. Costout of 100 · 30%59.5
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $111.71

5 payments; by number, the most common kind was food and beverage; the largest payer was Emd Serono, Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Visconti$112
  2. Specialty average$11,773

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

Bills Medicare through 2 group practices

  1. Washington UniversitySaint Louis, MO
  2. Washington University Physicians IN Illinois IncShiloh, IL

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

John L. Visconti among 182 medical oncology physician records in Illinois

John L. Visconti, DO is one of 182 medical oncology physician records with a practice address in Illinois. 83% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 43% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1990 · median 2000 among the 132 with a school on file
  • Record last updated2025 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 medical oncology physician records list a practice address in Shiloh

They are 4 of the 181 NPPES records with a practice address in Shiloh, and 182 medical oncology physician records in Illinois.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Justin Floyd, DOO Fallon, IL 622691629164678
  2. Alfred Greco, MDShiloh, IL 622691073501607
  3. Brett Herzog, MD PHDShiloh, IL 622691023499282
  4. William Popovic, MDShiloh, IL 622691609824549
  5. Mohammed Siddiqui, MDNashville, IL 622631730115973
  6. Guillermo Rodriguez, MDBelleville, IL 622261861440661
  7. Philip Dy, M.D.Effingham, IL 624011710076567
  8. Mario Velasco, MDDecatur, IL 625261326007782

Common questions

What is John L. Visconti, DO's NPI number?

John L. Visconti, DO's National Provider Identifier (NPI) is 1033167846, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John L. Visconti, DO located?

The NPPES record lists a practice address at 1418 Cross St, Shiloh, IL, 62269. Phone: (618) 607-1340. Providers update this record themselves, so call before visiting.

How can I verify John L. Visconti, DO's license?

NPPES lists Illinois license number 036114479, 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 John L. Visconti, DO prescribe under Medicare Part D?

In 2024, John L. Visconti, DO had 5,918 Medicare Part D claims for 680 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

What is John L. Visconti, DO's MIPS final score?

The 2023 MIPS final score is 79.3 of 100, reported for the practice group. 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.