Krystal Marie Vonfeldt, DO
NPI 1114294741ActiveIndividual· Family Medicine· Duncan, OK
Family Medicine (DO) with Duncan Regional Hospital, Inc, practicing in Duncan, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $1,104,319 for 10,143 claims, against $40,793 paid for services in 2024. Boston Scientific Corporation reported $23.59 in payments in 2025, mostly food and beverage. Lists Duncan Regional Hospital, Inc and 1 other hospital as hospital affiliations.
Overview
| NPI | 1114294741 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Nov 28, 2011 |
| Last updated in NPPES | Mar 17, 2023 |
| Certified by provider | Mar 17, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 5284 | OK |
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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 141 |
|---|---|
| Services billed | 418 across 21 procedure codes |
| Paid by Medicare | $40,793 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,143 · 18,364 30-day fills |
|---|---|
| Patients | 361 |
| Total drug cost | $1,104,319 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- Duncan Regional Hospital, IncMarlow, OK · 68 clinicians
Hospital affiliations
- Duncan Regional Hospital, IncDuncan, OK
- Jefferson County HospitalWaurika, OK
Other facilities
- A Path of Care Home Health Vi, LLCHome health agency · Lawton, OK
- Duncan Regional Hospital Home CareHome health agency · Duncan, OK
- Health Watch Health Care of Duncan, LLCHome health agency · Duncan, OK
- Chisholm Trail HospiceHospice · Duncan, OK
Industry payments (Open Payments)
- 2025$23.59 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $23.59 | 1 |
What the 2025 payments were for
- Food and Beverage$23.59 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 family medicine physicians in Duncan · All family medicine physicians in Oklahoma