Kristi D. Walz, MD
NPI 1144214248ActiveIndividual· Family Medicine· Sioux City, IA
Family Medicine (MD) in Sioux City, Iowa, trained at Sanford School of Medicine of University of South Dakota (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $2,398,638 for 10,761 claims, against $15,587 paid for services in 2024. Viiv Healthcare Company was the largest of 4 companies reporting payments in 2025, $98.76 in all, mostly food and beverage.
Overview
| NPI | 1144214248 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 2, 2005 |
| Last updated in NPPES | Jun 14, 2021 |
| Certified by provider | Jun 14, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 33620 | IA |
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 - Family Practice (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 103 |
|---|---|
| Services billed | 982 across 62 procedure codes |
| Paid by Medicare | $15,587 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,761 · 17,022 30-day fills |
|---|---|
| Patients | 386 |
| Total drug cost | $2,398,638 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | Sanford School of Medicine of University of South Dakota |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Family Practice |
Medical groups
- Neighborhood HealthAlexandria, VA · 46 clinicians
- Siouxland Community Health CenterSioux City, IA · 11 clinicians
Hospital affiliation
- St Lukes Regional Medical CenterSioux City, IA
Industry payments (Open Payments)
- 2025$98.76 · 5 payments from 4 companies
- 2024$93.35 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $37.82 | 2 |
| Inspire Medical Systems, Inc. | $27.17 | 1 |
| Xeris Pharmaceuticals, Inc. | $18.00 | 1 |
| Merck Sharp & Dohme LLC | $15.77 | 1 |
What the 2025 payments were for
- Food and Beverage$98.76 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 97 family medicine physicians in Sioux City · All family medicine physicians in Iowa