DR. PIOTR T DYK (M.D.) – Nephrology Physician, NPI 1194712927
Nephrology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
319 NEPHROLOGY in MO
Provider Addresses for DR. PIOTR T DYK (M.D.)
330 1ST CAPITOL DR STE 340
SAINT CHARLES, MO 633012852
Phone: (636) 443-2440
Fax: (636) 443-2486
Type: Location
PO BOX 368
SAINT PETERS, MO 633760007
Phone: (636) 928-0078
Fax: (636) 928-0089
Type: Mailing
1000 EDGEWATER PT STE 303
LAKE ST LOUIS, MO 633672954
Phone: (636) 265-2225
Fax: (636) 265-0320
Type: Mailing
2 HARBOR BEND CT STE 227
LAKE ST LOUIS, MO 633671487
Phone: (636) 443-2440
Fax: (636) 443-2486
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 10 Open Payments records for all available years, with a total value of $266.
Total Amount is formed as General ($266) + Research ($0) + Ownership ($0) = $266.
Last reported payment date: 2024-11-05 • Largest payer in this snapshot: Baxter Healthcare ($143).
Total Amount
$266
General + Research + Ownership
Payments
10
Total payment records
General Amount
$266
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Baxter Healthcare | $143 |
| Travere Therapeutics, Inc. | $54 |
| Novartis Pharmaceuticals Corporation | $40 |
| Amgen Inc. | $29 |
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: 2009-04-15
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 |
|---|---|---|---|---|
| I20090415000200 | I | Nephrology | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 768 | 103 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 177 | 27 | $0 |
| 90966 | Home dialysis services per month (20 years or older) | 100 | 13 | $0 |
| 90935 | Hemodialysis procedure with physician evaluation | 85 | 25 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 72 | 57 | $0 |
Insurance plans in this area (ZIP 63301)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | MO | 90935 | Hemodialysis procedure with one physician evaluation | 190 | 61 |
| NEPHROLOGY | MO | 90961 | Dialysis services (2-3 physician visits per month), patient 20 years of age and older | 122 | 43 |
| NEPHROLOGY | MO | 90966 | Home dialysis services per month, patient 20 years of age or older | 107 | 15 |
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