KATHLEEN CIZEK (M.D.) – Internal Medicine Physician, NPI 1083605331
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,186 INTERNAL MEDICINE in MO
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Provider Addresses for KATHLEEN CIZEK (M.D.)
PO BOX 23340
SAINT LOUIS, MO 631563340
Phone: (314) 843-7333
Fax: (314) 843-9946
Type: Mailing
5034, Griffin Road, Concord, Saint Louis County, Missouri, 63128, United States
SAINT LOUIS, MO 631283418
Phone: (314) 843-7333
Fax: (314) 843-9946
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 80 Open Payments records for all available years, with a total value of $1,509.
Total Amount is formed as General ($1,509) + Research ($0) + Ownership ($0) = $1,509.
Last reported payment date: 2024-12-06 • Largest payer in this snapshot: ABBVIE INC. ($396).
Total Amount
$1,509
General + Research + Ownership
Payments
80
Total payment records
General Amount
$1,509
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $396 |
| PFIZER INC. | $192 |
| Amgen Inc. | $127 |
| Lilly USA, LLC | $97 |
| AstraZeneca Pharmaceuticals LP | $71 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2007-11-30
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20071130000557 | I | Internal Medicine | MO | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 472 | 181 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 427 | 173 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 224 | 153 | $0 |
| 80061 | Blood test, lipids (cholesterol and triglycerides) | 220 | 146 | $0 |
| 83036 | Hemoglobin a1c level | 191 | 109 | $0 |
Insurance plans in this area (ZIP 63156)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | MO | 83036 | Hemoglobin A1C level | 78 | 43 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | MO | |
| Family Practice, Geriatric Medicine | MO | |
| - | MO | |
| Internal Medicine | MO | |
| Physician Assistant | MO | |
| - | MO | |
| Nurse Practitioner | MO | |
| - | MO | |
| Nurse Practitioner | MO | |
| Family Practice | MO |
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