Zachary S. Larrimer, MD
NPI 1316171945ActiveIndividual· Surgery· Hot Springs, AR
Surgery (MD) in Hot Springs, Arkansas, trained at Louisiana State University School of Medicine in Shreveport (class of 2009). 373 Medicare patients in 2024, $156,876 paid; nearly all of their 271 Part D prescriptions were generic (96%). Innovation Technologies Inc was the largest of 2 companies reporting payments in 2025, $48.00 in all, mostly food and beverage.
Overview
| NPI | 1316171945 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 11, 2009 |
| Last updated in NPPES | Jun 29, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | E-8741 | AR |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 373 |
|---|---|
| Services billed | 933 across 144 procedure codes |
| Paid by Medicare | $156,876 |
Part D prescriptions in 2024
| Prescriptions (claims) | 271 · 284 30-day fills |
|---|---|
| Patients | 172 |
| Total drug cost | $3,472 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in Shreveport |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | General Surgery |
Medical group
- Chi St Vincent Medical Group Hot SpringsHot Springs, AR · 185 clinicians
Hospital affiliations
- Chi St. Vincent Hospital Hot SpringsHot Springs, AR
- Mena Regional Health SystemMena, AR
Industry payments (Open Payments)
- 2025$48.00 · 2 payments from 2 companies
- 2024$287.14 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Innovation Technologies Inc | $29.21 | 1 |
| Smith+nephew, Inc. | $18.79 | 1 |
What the 2025 payments were for
- Food and Beverage$48.00 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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