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Internal Medicine

Kathleen Cizek, MD

Works at hospitals in Saint Louis, MO · Chesterfield, MO · Missouri

Summary

Kathleen Cizek, MD (Internal Medicine) is listed by Medicare at 4 hospitals in Saint Louis, MO and Chesterfield, MO. NPI 1083605331. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Kathleen Cizek, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
35Years since medical school (graduated 1991)
University Of Chicago, Pritzker School Of MedicineMedical school
FemaleGender (as listed)
Aging Well Health Care, LLCGroup practice (+1 more)

Quick answers

Which hospitals does Kathleen Cizek work at?
Medicare's official clinician data lists Kathleen Cizek at 4 hospitals: Mercy Hospital South, Mercy Hospital St Louis, Missouri Baptist Medical Center and St Lukes Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Kathleen Cizek see patients?
Medicare's clinician data lists 2 practice locations, including Saint Louis, MO. Call before your visit to confirm the address.
What is Kathleen Cizek's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Kathleen Cizek accept Medicare assignment?
Yes. Medicare's clinician data says Kathleen Cizek accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Kathleen Cizek offer telehealth?
Medicare's clinician data says Kathleen Cizek offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Kathleen Cizek?
(314) 843-7333, as listed in official Medicare / NPI Registry data.
What is Kathleen Cizek's NPI number?
1083605331. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Kathleen Cizek works

Medicare's Facility Affiliation Data lists Kathleen Cizek at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Kathleen Cizek is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Kathleen Cizek as a member of these groups (CMS data updated 2026-10-02).

  • Aging Well Health Care, LLC238 clinicians in the group
  • American Multispecialty Group Inc116 clinicians in the group

Specialties

Find other Internal Medicine doctors in Missouri →

Other internal medicine doctors in Saint Louis

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

All internal medicine doctors in Saint Louis →

Clinician information

CredentialMD
Medical schoolUniversity Of Chicago, Pritzker School Of Medicine
Graduation year1991
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1083605331
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians