Nabeel M. Siddiqui, MD

Medicare activity in 2024

Official CMS public-use data for Nabeel M. 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.

Most frequent services

1. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)274 services
2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)67 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%
• Ischemic heart disease65%
• Arthritis58%
• Heart failure51%
• Chronic kidney disease48%

Hospitals where Nabeel M. Siddiqui works

Medicare's Facility Affiliation Data lists Nabeel M. 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.

• Decatur Memorial HospitalDecatur, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140135
• Northwestern Medicine McHenryMcHenry, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140116
• Pana Community HospitalPana, IL · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 141341
• Taylorville Memorial HospitalTaylorville, IL · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 141339

Practice locations

Addresses where Nabeel M. Siddiqui is enrolled with Medicare (CMS data updated October 2, 2026).

• 2300 N Edward StDecatur, IL 62526 (217) 876‑8121
• 241 W Weaver Rd, Suite 145bForsyth, IL 62535 (217) 876‑5220
• 4201 W Medical Ctr DrMcHenry, IL 60050 (815) 759‑4323

Group practices

Medicare enrollment lists Nabeel M. Siddiqui as a member of these groups (CMS data updated October 2, 2026).

• Northwestern Medical Faculty Foundation4,503 clinicians in the group
• Decatur Memorial Hospital174 clinicians in the group

Specialties

• Hospitalistprimary
• Family Practicealso

Find other Hospitalist doctors in Illinois →

Other hospitalists in Decatur

Clinicians with the same Medicare primary specialty in Decatur, IL — not a recommendation.

• Elijah Kakani, MD
• Ashish K. Moonat, MD
• Irfan Ul Haq Minhas, MD
• Sajana Maharjan, MD
• Ghanshyam Patel, MD

All hospitalists in Decatur →

Other clinicians in Northwestern Medical Faculty Foundation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Adam W. Corya, MD
• Avrey J. Thau, MD
• Taehan P. Kim
• Gyu I. Gang, MD
• Megan Hirschel
• Jeffrey D. Wayne, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians