DR. THOMAS JOHN GNIADEK (MD PHD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1205101334
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
518 PATHOLOGY in MN
Provider Addresses for DR. THOMAS JOHN GNIADEK (MD PHD)
300 S 6th St # Mc604
Minneapolis, MN 554870999
Phone: (612) 596-1036
Type: Location
844 Knollwood Rd
Deerfield, IL 600153313
Phone: (203) 806-0125
Type: Location
2525 Chicago Ave
Minneapolis, MN 554044518
Phone: (612) 813-6000
Type: Location
844 KNOLLWOOD RD
DEERFIELD, IL 600153313
Phone: (203) 806-0125
Type: Location
2650 RIDGE AVE.
DEPT. OF PATHOLOGY
EVANSTON, IL 602011718
Phone: (847) 570-2730
Fax: (847) 733-5314
Type: Mailing
1402 S GRAND BLVD
SAINT LOUIS, MO 631041004
Phone: (314) 617-2000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $2,648.
Total Amount is formed as General ($2,648) + Research ($0) + Ownership ($0) = $2,648.
Last reported payment date: 2024-06-14 • Largest payer in this snapshot: Instrumentation Laboratory Company ($1,350).
Total Amount
$2,648
General + Research + Ownership
Payments
5
Total payment records
General Amount
$2,648
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-14
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Instrumentation Laboratory Company | $1,350 |
| Cerus Corporation | $1,298 |
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: 2025-12-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20170522001227 | I | Pathology | MN | TBD |
| I20251209004287 | I | Pathology | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 55487)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | MN | |
| Hematology/Oncology, Internal Medicine | MN | |
| - | MN | |
| Nurse Practitioner | MN | |
| - | MN | |
| - | TN | |
| Emergency Medicine | MN | |
| Nurse Practitioner | MN | |
| Physician Assistant | MN | |
| - | MN |
Reviews
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