Quick answers
- Does Alfred S. Guirguis accept Medicare assignment?
- Yes. Medicare's clinician data says Alfred S. Guirguis 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 Alfred S. Guirguis see?
- In 2024, CMS data shows 307 Original Medicare patients and 36,839 services for Alfred S. Guirguis. This counts Original Medicare only and measures volume, not quality.
- What is Alfred S. Guirguis's NPI number?
- 1063539211. 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 Alfred S. Guirguis, 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 | 307 |
|---|---|
| Services billed to Medicare | 36,839 |
| Different services or procedures | 114 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, pembrolizumab, 1 mg (J9271)9,000 services
- Injection, paclitaxel, 1 mg (J9267)6,314 services
- Injection, eflapegrastim-xnst, 0.1 mg (J1449)1,848 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)1,358 services
- Injection, carboplatin, 50 mg (J9045)298 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 blood pressure75%
- High cholesterol75%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)58%
- Arthritis45%
- Anxiety29%
- Diabetes28%
Hospitals where Alfred S. Guirguis works
Medicare's Facility Affiliation Data lists Alfred S. Guirguis 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.
- Advocate Christ Hospital & Medical CenterOak Lawn, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140208
- Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140288
- Edward HospitalNaperville, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140231
- Elmhurst Memorial HospitalElmhurst, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140200
- Palos Community HospitalPalos Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140062
Practice locations
Addresses where Alfred S. Guirguis is enrolled with Medicare (CMS data updated October 2, 2026).
- 3825 Highland Ave, Suite 307Downers Grove, IL 60515 (708) 422‑3242
- 6700 W 95th St, Suite 330Oak Lawn, IL 60453 (708) 422‑3242
Group practices
Medicare enrollment lists Alfred S. Guirguis as a member of this group (CMS data updated October 2, 2026).
- Affiliated Oncologists LLC44 clinicians in the group
Specialties
- Gynecological Oncologyprimary
- Obstetrics/Gynecologyalso
Other gynecologic oncologists in Downers Grove
Clinicians with the same Medicare primary specialty in Downers Grove, IL — not a recommendation.
Other clinicians in Affiliated Oncologists LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Arizona College Of Osteopathic Medicine Mid Western University |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1063539211 |
| 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