Larissa S. Koll, CRNA
NPI 1275865271ActiveIndividual· Nurse Anesthetist, Certified Registered· Bossier City, LA
Nurse Anesthetist, Certified Registered (CRNA) with Billings Clinic Specialty Supplies and Services, LLC and 1 other group, practicing in Bossier City, Louisiana. Medicare paid $4,010 for services to 33 patients in 2024. Merck Sharp & Dohme LLC reported $69.15 in payments in 2025, mostly food and beverage. Lists Billings Clinic Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1275865271 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNA |
| Sole proprietor | No |
| NPI issued | Feb 2, 2010 |
| Last updated in NPPES | Dec 3, 2024 |
| Certified by provider | Dec 3, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | AP06033 | LA |
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) (CO); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (KY); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (LA); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (ME); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (MT); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 33 |
|---|---|
| Services billed | 33 across 24 procedure codes |
| Paid by Medicare | $4,010 |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical groups
- Billings Clinic Specialty Supplies and Services, LLCBillings, MT · 824 clinicians
- University Health Shreveport, LLCShreveport, LA · 64 clinicians
Hospital affiliations
- Billings Clinic HospitalBillings, MT
- Ochsner Lsu Health Shreveport-St Mary Medical CentShreveport, LA
Industry payments (Open Payments)
- 2025$69.15 · 4 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $69.15 | 4 |
What the 2025 payments were for
- Food and Beverage$69.15 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 17 nurse anesthetists in Bossier City · All nurse anesthetists in Louisiana