Cristina Wheeler Castillo-Nelson, MD
NPI 1922495456ActiveIndividual· Family Medicine· Ashland, WI
Family Medicine (MD) in Ashland, Wisconsin, trained at University of California, Irvine, California College of Medicine (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $146,490 for 2,229 claims, against $53,255 paid for services in 2024.
Overview
| NPI | 1922495456 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 22, 2015 |
| Last updated in NPPES | Feb 4, 2022 |
| Certified by provider | Feb 4, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 61012 | MN |
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 - Family Practice (MN); Practitioner - Family Practice (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 202 |
|---|---|
| Services billed | 1,071 across 95 procedure codes |
| Paid by Medicare | $53,255 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,229 · 4,450 30-day fills |
|---|---|
| Patients | 247 |
| Total drug cost | $146,490 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Family Practice |
Medical groups
- St. Luke's Hospital of DuluthDuluth, MN · 405 clinicians
- The Lakes Community Health Center IncIron River, WI · 105 clinicians
- Memorial Medical Center IncAshland, WI · 79 clinicians
Hospital affiliations
- Aspirus Wausau HospitalWausau, WI
- St Lukes HospitalDuluth, MN
- Tamarack Health Ashland Medical CenterAshland, WI
- Tamarack Health Hayward Medical CenterHayward, WI
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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