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Internal Medicine

Zaki H. Chowdhury, MD

Works at hospitals in Perryville, MO · Sainte Genevieve, MO · Centreville, IL · Missouri, Illinois

Summary

Dr. Zaki H. Chowdhury, MD is an internal medicine doctor at 120 Plaza Dr, Ste Genevieve, MO 63670. Phone: (618) 857-2700. Accepts Medicare assignment. In 2024, Zaki H. Chowdhury had 63 Original Medicare patients and 111 services. NPI 1366456022. 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 Zaki H. 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 Zaki H. Chowdhury accept Medicare assignment?
Yes. Medicare's clinician data says Zaki H. 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 Zaki H. Chowdhury see?
In 2024, CMS data shows 63 Original Medicare patients and 111 services for Zaki H. Chowdhury. This counts Original Medicare only and measures volume, not quality.
What is Zaki H. Chowdhury's NPI number?
1366456022. 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 Zaki H. 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 patients63
Services billed to Medicare111
Different services or procedures17
Participating Medicare providerYes
Average age of these patients62

Most frequent services

  1. Dxa bone density measurement of hip, pelvis, spine (77080)24 services
  2. Emergency department visit with moderate level of medical decision making (99284)24 services
  3. Emergency department visit with high level of medical decision making (99285)18 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 cholesterol71%
  • High blood pressure65%
  • Anxiety38%
  • Diabetes37%
  • Arthritis37%
  • Depression35%

Hospitals where Zaki H. Chowdhury works

Medicare's Facility Affiliation Data lists Zaki H. 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.

  • Mercy Hospital PerryPerryville, MO · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 261311
  • Ste Genevieve County Memorial HospitalSainte Genevieve, MO · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 261330
  • Touchette Regional Hospital IncCentreville, IL · Acute Care Hospital · Emergency services: listed by Medicare · CCN 140077

Practice locations

Addresses where Zaki H. Chowdhury is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 12; the Medicare profile lists all.

Group practices

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

  • Ste Genevieve County Memorial Hospital71 clinicians in the group
  • Touchette Regional Hospital Inc47 clinicians in the group

Specialties

Find other Internal Medicine doctors in Missouri →

Other internal medicine doctors in Missouri

Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.

All internal medicine doctors in Missouri →

Other clinicians in Ste Genevieve County Memorial Hospital

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

Clinician information

CredentialMD
Graduation year1993 (33 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1366456022
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