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Hospitalist

Farhanaz Chowdhury, MD

Works at hospitals in Saint Louis, MO · Belleville, IL · Missouri, Illinois

Summary

Dr. Farhanaz Chowdhury, MD is a hospitalist at 1 Memorial Dr, Alton, IL 62002. Phone: (618) 463-7240. Accepts Medicare assignment. In 2024, Farhanaz Chowdhury had 273 Original Medicare patients and 845 services. NPI 1518253160. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Farhanaz Chowdhury, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Farhanaz Chowdhury accept Medicare assignment?
Yes. Medicare's clinician data says Farhanaz Chowdhury 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 Farhanaz Chowdhury see?
In 2024, CMS data shows 273 Original Medicare patients and 845 services for Farhanaz Chowdhury. This counts Original Medicare only and measures volume, not quality.
What is Farhanaz Chowdhury's NPI number?
1518253160. 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 Farhanaz 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.

Original Medicare patients273
Services billed to Medicare845
Different services or procedures9
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)510 services
  2. Hospital discharge day management, more than 30 minutes (99239)174 services
  3. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)102 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)29 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)19 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%
  • Arthritis64%
  • Ischemic heart disease61%
  • Chronic kidney disease58%
  • Heart failure57%

Hospitals where Farhanaz Chowdhury works

Medicare's Facility Affiliation Data lists Farhanaz 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.

  • Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260032
  • Memorial HospitalBelleville, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140185

Practice locations

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

Group practices

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

  • Fairview Heights Medical Group SC444 clinicians in the group

Specialties

Find other Hospitalist doctors in Illinois →

Other hospitalists in Alton

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

All hospitalists in Alton →

Other clinicians in Fairview Heights Medical Group SC

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

Clinician information

CredentialMD
Graduation year1999 (27 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1518253160
CorrectionsReport 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

  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