Gretchen Marie Halker, N.P.
NPI 1134454432ActiveIndividual· Nurse Practitioner, Family· Highlands Ranch, CO
Nurse Practitioner, Family (N.P.) with Minimally Invasive Procedure Specialists PLLC and 1 other group, practicing in Highlands Ranch, Colorado. 88 Medicare patients in 2024, $14,156 paid; nearly all of their 151 Part D prescriptions were generic (99%). Pfizer Inc. was the largest of 3 companies reporting payments in 2025, $120.66 in all, mostly food and beverage.
Overview
| NPI | 1134454432 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | N.P. |
| Sole proprietor | No |
| NPI issued | Oct 5, 2009 |
| Last updated in NPPES | Dec 16, 2024 |
| Certified by provider | Dec 16, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | NP10140 | CO |
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 - Nurse Practitioner (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 88 |
|---|---|
| Services billed | 175 across 8 procedure codes |
| Paid by Medicare | $14,156 |
Part D prescriptions in 2024
| Prescriptions (claims) | 151 · 227 30-day fills |
|---|---|
| Patients | 63 |
| Total drug cost | $1,872 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Minimally Invasive Procedure Specialists PLLCHighlands Ranch, CO · 14 clinicians
- Ih Physician Services 2 PCCastle Rock, CO · 8 clinicians
Industry payments (Open Payments)
- 2025$120.66 · 6 payments from 3 companies
- 2024$120.10 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $60.51 | 3 |
| Tactile Systems Technology Inc | $42.04 | 2 |
| E.R. Squibb & Sons, L.L.C. | $18.11 | 1 |
What the 2025 payments were for
- Food and Beverage$120.66 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Nurse Practitioner, Family providers in Highlands Ranch
- 1538354568
- 1083227540
- 1316427495
- 1205699485
- 1215823950
- 1780448688
- 1801391750
- 1922483858
- 1174541254
- 1124656624
- 1053156117
- 1548116742