Quick answers
- Does Mariah Siddiqui accept Medicare assignment?
- Yes. Medicare's clinician data says Mariah Siddiqui 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 Mariah Siddiqui see?
- In 2024, CMS data shows 922 Original Medicare patients and 2,368 services for Mariah Siddiqui. This counts Original Medicare only and measures volume, not quality.
- What is Mariah Siddiqui's NPI number?
- 1568604726. 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 Mariah Siddiqui, 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 | 922 |
|---|---|
| Services billed to Medicare | 2,368 |
| Different services or procedures | 42 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Ct scan head or brain without contrast (70450)458 services
- Mri scan of brain before and after contrast (70553)144 services
- Ct scan of upper spine without contrast (72125)110 services
- Ct scan of blood vessels of head with contrast (70496)83 services
- Ct scan of blood vessels of neck with contrast (70498)80 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%
- Arthritis63%
- Diabetes43%
- Ischemic heart disease42%
- Chronic kidney disease35%
Hospitals where Mariah Siddiqui works
Medicare's Facility Affiliation Data lists Mariah Siddiqui 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.
- Loyola Gottlieb Memorial HospitalMelrose Park, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140008
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140276
- MacNeal HospitalBerwyn, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140054
- Saint Francis Medical CenterPeoria, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140067
- St Joseph Medical CenterBloomington, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140162
Practice locations
Addresses where Mariah Siddiqui is enrolled with Medicare (CMS data updated October 2, 2026).
- 17901 S La Grange Rd, Suite 2000Tinley Park, IL 60487 (708) 327‑8300
- 2160 S 1st AveMaywood, IL 60153 (708) 216‑9000
- 363 Trinity LnOak Brook, IL 60523 (309) 740‑4272
- 8600 State Route 91, Suite 130Peoria, IL 61615 (309) 683‑5050
Group practices
Medicare enrollment lists Mariah Siddiqui as a member of these groups (CMS data updated October 2, 2026).
- OSF Multi-Specialty Group2,114 clinicians in the group
- Loyola University Medical Center953 clinicians in the group
- Central Illinois Radiological Associates Ltd209 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Tinley Park
Clinicians with the same Medicare primary specialty in Tinley Park, IL — not a recommendation.
Other clinicians in OSF Multi-Specialty Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568604726 |
| 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