Katherin Aoki I
NPI 1154741999ActiveIndividual· Registered Nurse· Streamwood, IL
Registered Nurse with Mercy Health System Corporation and 3 other groups, practicing in Streamwood, Illinois. Medicare paid $24,162 for services to 243 patients in 2024. Merck Sharp & Dohme LLC reported $65.73 in payments in 2025, mostly food and beverage. Lists Alexian Brothers Medical Center 1 and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1154741999 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Apr 20, 2014 |
| Last updated in NPPES | Mar 12, 2026 |
| Certified by provider | Mar 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Registered Nurse Primary | 163W00000X | 041.331780 | IL |
| Nurse Anesthetist, Certified Registered | 367500000X | 209013456 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | 041.331780 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 251 across 52 procedure codes |
| Paid by Medicare | $24,162 |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical groups
- Mercy Health System CorporationJanesville, WI · 753 clinicians
- Northstar Anesthesia of Illinois, LLCChicago Heights, IL · 409 clinicians
- Midwest Anesthesia Partners LLCHinsdale, IL · 119 clinicians
- Encore Anesthesia Group LLCMelrose Park, IL · 29 clinicians
Hospital affiliations
- Alexian Brothers Medical Center 1Elk Grove Village, IL
- Loyola Gottlieb Memorial HospitalMelrose Park, IL
- Mercyhealth Hospital & Physician Clinic-Crystal laCrystal Lake, IL
- St Alexius Medical CenterHoffman Estates, IL
Industry payments (Open Payments)
- 2025$65.73 · 2 payments from 1 company
- 2024$54.33 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $65.73 | 2 |
What the 2025 payments were for
- Food and Beverage$65.73 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Registered Nurse providers in Streamwood
- 1851161491
- 1912117532
- 1417878786