MARK A TOMCZAK (CRNA) – Certified Registered Nurse Anesthetist, NPI 1235188533
Certified Registered Nurse Anesthetist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,265 CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) in IL
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Provider Addresses for MARK A TOMCZAK (CRNA)
Torrence Avenue, Lansing, Thornton Township, Cook County, Illinois, 60438, United States
LANSING, IL 604382870
Phone: (708) 895-9450
Fax: (708) 895-9455
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $43.
Total Amount is formed as General ($43) + Research ($0) + Ownership ($0) = $43.
Last reported payment date: 2024-11-12 • Largest payer in this snapshot: Heron Therapeutics, Inc. ($27).
Total Amount
$43
General + Research + Ownership
Payments
2
Total payment records
General Amount
$43
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Heron Therapeutics, Inc. | $27 |
| Merck Sharp & Dohme LLC | $17 |
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: 2004-10-19
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 |
|---|---|---|---|---|
| I20040525000058 | I | Certified Registered Nurse Anesthetist (Crna) | IL | TBD |
| I20041019000180 | I | Certified Registered Nurse Anesthetist (Crna) | IN | 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 |
|---|---|---|---|---|
| 00120 | Anesthesia for other procedure on external middle and inner ear | 24 | 24 | $0 |
| 00160 | Anesthesia for other procedure on nose and sinuses | 20 | 20 | $0 |
| 01938 | Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance | 14 | 13 | $0 |
Insurance plans in this area (ZIP 60438)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CERTIFIED REGISTERED NURSE ANESTHET | IL | 00142 | Anesthesia for lens surgery | 12 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | MI | |
| Certified Registered Nurse Anesthetist (Crna) | IN | |
| Hospice/Palliative Care, Anesthesiology, Interventional Pain Management | IL | |
| Certified Registered Nurse Anesthetist (Crna) | IL | |
| Certified Registered Nurse Anesthetist (Crna) | IL | |
| Certified Registered Nurse Anesthetist (Crna) | IL | |
| Certified Registered Nurse Anesthetist (Crna) | IL | |
| Certified Registered Nurse Anesthetist (Crna) | IL | |
| Certified Registered Nurse Anesthetist (Crna) | MT | |
| Certified Registered Nurse Anesthetist (Crna) | IL |
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