GREG TOMCZYK – Hematology & Oncology Physician, NPI 1376634212
Hematology & Oncology Physician
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Profile Insights
NPPES metrics only — not quality of care.
5,035 PHYSICIAN ASSISTANT in IL
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Provider Addresses for GREG TOMCZYK
150 HARVESTER DR
SUITE 300
BURR RIDGE, IL 605275919
Phone:
Type: Mailing
Au Bon Pain, 5841, South Maryland Avenue, Hyde Park, Chicago, Hyde Park Township, Cook County, Illinois, 60637, United States
CHICAGO, IL 606371443
Phone: (888) 824-0200
Type: Location
3220-3222, West Eastwood Avenue, Ravenswood Manor, Albany Park, Chicago, Jefferson Township, Cook County, Illinois, 60625, United States
UNIT #2
CHICAGO, IL 606254413
Phone: (312) 498-5581
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $76.
Total Amount is formed as General ($76) + Research ($0) + Ownership ($0) = $76.
Last reported payment date: 2024-07-11 • Largest payer in this snapshot: Bayer Healthcare Pharmaceuticals Inc. ($76).
Total Amount
$76
General + Research + Ownership
Payments
1
Total payment records
General Amount
$76
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $76 |
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: 2006-03-02
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 |
|---|---|---|---|---|
| I20060302000204 | I | Physician Assistant | IL | 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 | 21 | 17 | $0 |
Insurance plans in this area (ZIP 60527)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | IL | |
| N E U R O L O G Y | IL | |
| General Surgery | IN | |
| Pediatric Medicine, Emergency Medicine | IL | |
| - | IL | |
| - | IL | |
| Cardiovascular Disease (Cardiology) | IL | |
| - | IL | |
| Nurse Practitioner | MI | |
| Interventional Cardiology, Internal Medicine, Cardiovascular Disease (Cardiology) | IL |
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