MARY L. THIESSEN (M.D.) – Emergency Medicine Physician, NPI 1033182555
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
452 EMERGENCY MEDICINE in KS
Provider Addresses for MARY L. THIESSEN (M.D.)
The Y Store, MN 1; MN 169, Tower, Saint Louis County, Minnesota, 55790, United States
SAINT LOUIS, MO 631788009
Phone: (866) 898-7142
Fax: (616) 975-9824
Type: Mailing
4000 CAMBRIDGE ST
KANSAS CITY, KS 661603220
Phone: (913) 588-6500
Type: Location
4401, Wornall Road, Plaza-Westport, Country Club Plaza, Kansas City, Jackson County, Missouri, 64111, United States
KANSAS CITY, MO 641113220
Phone: (816) 932-2171
Type: Location
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: 2024-03-18 • Largest payer in this snapshot: ABBVIE INC. ($23).
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
2024-03-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $23 |
| CSL Behring | $20 |
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: 2010-10-08
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 |
|---|---|---|---|---|
| I20101008000607 | I | Emergency Medicine | KS | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 318 | 307 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 229 | 208 | $0 |
| 99291 | Critical care, first 30-74 minutes | 40 | 39 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 18 | 18 | $0 |
Insurance plans in this area (ZIP 63178)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| EMERGENCY MEDICINE | MO | 93010 | Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report | 321 | 304 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Hematology/Oncology, Internal Medicine | KS | |
| Hematology/Oncology, Internal Medicine | KS | |
| - | IL | |
| P A T H O L O G Y | PA | |
| Nurse Practitioner | KS | |
| Hematology/Oncology, Internal Medicine | KS | |
| Nurse Practitioner | KS | |
| Radiation Oncology | MO | |
| Hematology/Oncology, Internal Medicine | KS | |
| Radiation Oncology | MO |
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