Quick answers
- Does Andrew G. Diab accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew G. Diab accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Andrew G. Diab see?
- In 2024, CMS data shows 1,798 Original Medicare patients and 3,581 services for Andrew G. Diab. This counts Original Medicare only and measures volume, not quality.
- What is Andrew G. Diab's NPI number?
- 1750541710. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Andrew G. Diab, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,798 |
|---|---|
| Services billed to Medicare | 3,581 |
| Different services or procedures | 175 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Screening mammography (77067)537 services
- Screening 3d breast mammography (77063)536 services
- X-ray of chest, 1 view (71045)258 services
- X-ray of chest, 2 views (71046)258 services
- X-ray of foot, minimum of 3 views (73630)100 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure69%
- Arthritis47%
- Diabetes32%
- Anxiety29%
- Depression28%
Hospitals where Andrew G. Diab works
Medicare's Facility Affiliation Data lists Andrew G. Diab at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Mercy Health System CorpJanesville, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520066
- Mercy Walworth Hospital & Medical CenterLake Geneva, WI · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 521357
Practice locations
Addresses where Andrew G. Diab is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 Mineral Point AveJanesville, WI 53548 (608) 756‑6000
Group practices
Medicare enrollment lists Andrew G. Diab as a member of this group (CMS data updated October 2, 2026).
- Mercy Health System Corporation753 clinicians in the group
Specialties
- Interventional Radiologyprimary
Other interventional radiologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Other clinicians in Mercy Health System Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ohio State University College Of Medicine |
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750541710 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians