Kristen G. Schaefer
NPI 1437850641ActiveIndividual· Nurse Anesthetist, Certified Registered· Park Ridge, IL
Nurse Anesthetist, Certified Registered with Northstar Anesthesia of Illinois, LLC and 1 other group, practicing in Park Ridge, Illinois. Medicare paid $32,228 for services to 243 patients in 2024. Merck Sharp & Dohme LLC was the largest of 3 companies reporting payments in 2025, $77.47 in all, mostly food and beverage. Lists Alexian Brothers Medical Center 1 as a hospital affiliation.
Overview
| NPI | 1437850641 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 14, 2023 |
| Last updated in NPPES | Oct 24, 2024 |
| Certified by provider | Oct 24, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | 209028036 | IL |
| Registered Nurse | 163W00000X | 253114 | WY |
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) (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 243 |
|---|---|
| Services billed | 247 across 46 procedure codes |
| Paid by Medicare | $32,228 |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical groups
- Northstar Anesthesia of Illinois, LLCChicago Heights, IL · 409 clinicians
- Illinois Gastroenterology Group LLCArlington Heights, IL · 115 clinicians
Hospital affiliation
- Alexian Brothers Medical Center 1Elk Grove Village, IL
Industry payments (Open Payments)
- 2025$77.47 · 3 payments from 3 companies
- 2024$31.12 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $31.88 | 1 |
| Heron Therapeutics, Inc. | $23.34 | 1 |
| Pacira Pharmaceuticals Incorporated | $22.25 | 1 |
What the 2025 payments were for
- Food and Beverage$77.47 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 18 nurse anesthetists in Park Ridge · All nurse anesthetists in Illinois