Nirmala Gonsalves, MD

Medicare activity in 2024

Official CMS public-use data for Nirmala Gonsalves, 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. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)66 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)53 services
3. Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm (43249)18 services
4. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)16 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 pressure70%
• High cholesterol67%
• Arthritis48%
• Anxiety26%
• Ischemic heart disease24%
• Depression24%

Hospitals where Nirmala Gonsalves works

Medicare's Facility Affiliation Data lists Nirmala Gonsalves 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.

• Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140281

Practice locations

Addresses where Nirmala Gonsalves is enrolled with Medicare (CMS data updated October 2, 2026).

• 1333 W Belmont AveChicago, IL 60657
• 259 E Erie StChicago, IL 60611 (312) 503‑1944
• 675 N Saint Clair StChicago, IL 60611
• 675 N St ClairChicago, IL 60611

Group practices

Medicare enrollment lists Nirmala Gonsalves as a member of this group (CMS data updated October 2, 2026).

• Northwestern Medical Faculty Foundation4,503 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in Illinois →

Other gastroenterologists in Chicago

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

• Samuel F. Castillo, MD
• Sandra Naffouj, MD
• Manish K. Dhamija, MD
• Ofer Z. Fass, MD
• Rana R. Abraham, MD
• Jasmine Sinha, MD
• Parth Thaker, MD
• Mark T. De Meo, MD

All gastroenterologists in Chicago →

Other clinicians in Northwestern Medical Faculty Foundation

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

• Ivan M. Raimi, DO
• Christine L. Mackey, CNA
• Stephanie Bryan
• Bruce H. Doblin, MD
• Cassing Hammond, MD
• Eiman R. Kazi

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