NPPES file of Aug 9, 2026

John Michael Nessim Khalil, MD

Diagnostic Radiology Physician · Madison, WI

John Michael Nessim Khalil, MD is a diagnostic radiology physician with a practice address in Madison, Wisconsin, and NPI 1588848923, issued on Dec 20, 2007. Check the license (Wisconsin 48424, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588848923
Name
John Michael Nessim Khalil
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
48424 WI
Self-reported in NPPES; status is on the state search
Practice location
1 S Park St, Madison, WI 53715
Phone
(608) 417-6090
Enumerated
Dec 20, 2007
Record last updated
Dec 31, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(608) 417-7959
Medicare enrollment
Enrolled (PECOS I20100626000261); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2004
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 1 S Park St

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

  1. Lisa Arkin, M.D.Dermatology Physician1639309941
  2. Daniel Arndt, MDDiagnostic Radiology Physician1194794594
  3. Alexis Austin, PACSurgical Physician Assistant1215994033
  4. Harvey Barash, MDOrthopaedic Surgery Physician1659336329
  5. Rebecca Baron, P.T.Physical Therapist1417143801
  6. Kathleen Baus, MDDiagnostic Radiology Physician1063480291

Verify John Michael Nessim Khalil in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 48424
    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 Wisconsin 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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Industry payments in 2024: $28.18

1 payment: food and beverage; the largest payer was Heartflow, Inc. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Michael Khalil$28.18
  2. Specialty average$2,488.38

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

5 hospitals and group practices

  1. Richland HospitalRichland Center, WI · Critical Access Hospitals1 of 5 stars
  2. Fort Healthcare IncFort Atkinson, WI
  3. Group Health Cooperative OF South Central WisconsinMadison, WI
  4. University OF Wisconsin Medical Foundation IncMadison, WI
  5. University OF Wisconsin System Non PayrollMadison, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

John Michael Nessim Khalil among 1,005 diagnostic radiology physician records in Wisconsin

John Michael Nessim Khalil, MD is one of 1,005 diagnostic radiology physician records with a practice address in Wisconsin. 68% 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 52% of them.

  • NPI issued2007 · 52% of these records are older, 40% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2004 · median 2006 among the 664 with a school on file
  • Record last updated2020 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

224 diagnostic radiology physician records list a practice address in Madison

They are 224 of the 15,014 NPPES records with a practice address in Madison, and 1,005 diagnostic radiology physician records in Wisconsin.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Douglas Andrews, MDMadison, WI 537151730169681
  2. David Atwell, MDMadison, WI 537151356321202
  3. Jeffrey Block, MDMadison, WI 537151356321236
  4. Marta Bogdanowicz, MDMadison, WI 537151821078791
  5. Gregg Bogost, MDMadison, WI 537151093795973
  6. Cenon Buencamino, MDMadison, WI 537151699755579
  7. Timothy Crummy, MDMadison, WI 537151770563678
  8. Michael Cullenward, MDMadison, WI 537151629058516

Common questions

What is John Michael Nessim Khalil, MD's NPI number?

John Michael Nessim Khalil, MD's National Provider Identifier (NPI) is 1588848923, issued on Dec 20, 2007. An NPI identifies a provider in billing; it is not a license.

Where is John Michael Nessim Khalil, MD located?

The NPPES record lists a practice address at 1 S Park St, Madison, WI, 53715. Phone: (608) 417-6090. Providers update this record themselves, so call before visiting.

How can I verify John Michael Nessim Khalil, MD's license?

NPPES lists Wisconsin license number 48424, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.