Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Haseena Mazhar Ali

Works at hospitals in Saint Louis, MO · Saint Charles, MO · Lake Saint Louis, MO · Missouri

Summary

Haseena Mazhar Ali is an internal medicine doctor at 711 Veterans Memorial Pkwy, Suite 300, Saint Charles, MO 63303. Phone: (636) 669-2350. Accepts Medicare assignment. In 2024, Haseena Mazhar Ali had 294 Original Medicare patients and 690 services. NPI 1851738769. 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 Haseena Mazhar Ali, 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 Haseena Mazhar Ali accept Medicare assignment?
Yes. Medicare's clinician data says Haseena Mazhar Ali 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 Haseena Mazhar Ali see?
In 2024, CMS data shows 294 Original Medicare patients and 690 services for Haseena Mazhar Ali. This counts Original Medicare only and measures volume, not quality.
What is Haseena Mazhar Ali's NPI number?
1851738769. 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 Haseena Mazhar Ali, 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 patients294
Services billed to Medicare690
Different services or procedures16
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)354 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)213 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)65 services
  4. Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit (G0438)13 services
  5. Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment (G0402)12 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 cholesterol75%
  • High blood pressure73%
  • Arthritis45%
  • Chronic kidney disease33%
  • Diabetes29%
  • Depression27%

Hospitals where Haseena Mazhar Ali works

Medicare's Facility Affiliation Data lists Haseena Mazhar Ali 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.

Practice locations

Addresses where Haseena Mazhar Ali is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Haseena Mazhar Ali as a member of this group (CMS data updated October 2, 2026).

  • SSM Medical Group Inc568 clinicians in the group

Specialties

Find other Internal Medicine doctors in Missouri →

Other internal medicine doctors in Saint Charles

Clinicians with the same Medicare primary specialty in Saint Charles, MO — not a recommendation.

All internal medicine doctors in Saint Charles →

Other clinicians in SSM Medical Group Inc

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

Clinician information

Graduation year2004 (22 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1851738769
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