Mary H. Holtgrewe-Seib, CRNA
NPI 1619940707ActiveIndividual· Nurse Anesthetist, Certified Registered· Saint Louis, MO
Nurse Anesthetist, Certified Registered (CRNA) with Midwest Anesthesia Providers SC and 1 other group, practicing in Saint Louis, Missouri. Medicare paid $10,449 for services to 74 patients in 2024. Medtronic, Inc. was the largest of 4 companies reporting payments in 2025, $89.30 in all, mostly food and beverage. Lists Christian Hospital Northeast and 1 other hospital as hospital affiliations.
Overview
| NPI | 1619940707 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNA |
| Sole proprietor | No |
| NPI issued | Feb 9, 2006 |
| Last updated in NPPES | Sep 29, 2026 |
| Certified by provider | Aug 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | 2001012891 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Certified Registered Nurse Anesthetist (CRNA) (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 74 |
|---|---|
| Services billed | 75 across 24 procedure codes |
| Paid by Medicare | $10,449 |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical groups
- Midwest Anesthesia Providers SCAlton, IL · 182 clinicians
- Missouri Baptist Medical CenterSaint Louis, MO · 124 clinicians
Hospital affiliations
- Christian Hospital NortheastSaint Louis, MO
- Missouri Baptist Medical CenterSaint Louis, MO
Industry payments (Open Payments)
- 2025$89.30 · 4 payments from 4 companies
- 2024$16.36 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $30.19 | 1 |
| Merck Sharp & Dohme LLC | $23.91 | 1 |
| Solventum Corporation | $19.16 | 1 |
| Chiesi USA, Inc. | $16.04 | 1 |
What the 2025 payments were for
- Food and Beverage$89.30 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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