Christopher J. Walker, NPC
NPI 1023217866ActiveIndividual· Nurse Practitioner, Family· Parker, CO
Nurse Practitioner, Family (NPC) with Hidalgo Medical Services and 1 other group, practicing in Parker, Colorado. Their prescriptions cost Medicare Part D more than their services did: $247,476 for 1,609 claims, against $13,804 paid for services in 2024. Abbvie Inc. was the largest of 7 companies reporting payments in 2025, $354.49 in all, mostly food and beverage. Lists Banner North Colorado Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1023217866 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NPC |
| Sole proprietor | No |
| NPI issued | Jul 12, 2007 |
| Last updated in NPPES | Aug 24, 2021 |
| Certified by provider | Aug 24, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | R043823 | ME |
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 - Nurse Practitioner (CO); Practitioner - Nurse Practitioner (NM) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 87 |
|---|---|
| Services billed | 378 across 23 procedure codes |
| Paid by Medicare | $13,804 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,609 · 3,731 30-day fills |
|---|---|
| Patients | 182 |
| Total drug cost | $247,476 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Hidalgo Medical ServicesSilver City, NM · 33 clinicians
- Jg LLCGreeley, CO · 5 clinicians
Hospital affiliations
- Banner North Colorado Medical CenterGreeley, CO
- Uchealth Greeley HospitalGreeley, CO
Industry payments (Open Payments)
- 2025$354.49 · 19 payments from 7 companies
- 2024$292.59 · 15 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $194.37 | 10 |
| Astrazeneca Pharmaceuticals LP | $51.19 | 3 |
| Lilly USA, LLC | $37.70 | 2 |
| Organon LLC | $18.91 | 1 |
| Alkermes, Inc. | $18.75 | 1 |
What the 2025 payments were for
- Food and Beverage$354.49 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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