Reezwana Chowdhury, MD

Medicare activity in 2024

Official CMS public-use data for Reezwana Chowdhury, 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. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)47 services
2. Administration of chemotherapy into vein, 1 hour or less (96413)37 services
3. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)36 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)35 services
5. Biopsy of large bowel using a flexible endoscope (45380)30 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%
• Arthritis47%
• Diabetes35%
• Anxiety32%
• Chronic kidney disease30%

Hospitals where Reezwana Chowdhury works

Medicare's Facility Affiliation Data lists Reezwana Chowdhury 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.

• Johns Hopkins Bayview Medical CenterBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210029
• The Johns Hopkins HospitalBaltimore, MD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 210009

Practice locations

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

• 600 N Wolf StBaltimore, MD 21287 (410) 955‑5000
• 6201 Greenleigh AveMiddle River, MD 21220

Group practices

Medicare enrollment lists Reezwana Chowdhury as a member of these groups (CMS data updated October 2, 2026).

• Johns Hopkins University2,909 clinicians in the group
• Johns Hopkins University713 clinicians in the group

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in Maryland →

Other gastroenterologists in Baltimore

Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.

• Anusha Vittal, MD
• Frances Meyer, MD
• Olaya I. Brewer Gutierrez, MD
• Mian Khalid, MD
• Abdulhameed Al-Sabban, MD
• Anurag Maheshwari, MD
• Zurabi Lominadze, MD
• Peter E. Darwin, MD

All gastroenterologists in Baltimore →

Other clinicians in Johns Hopkins University

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

• Laura Hermann, AU
• Samuel C. Durso, MD
• Pedro Mendez-Tellez, MD
• Fitz Gerald Diala, MD
• Molly McGowan, MD
• Laura A. Maas, 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