Catherine A. Mascarenas, MS, FNP-C
NPI 1043347065ActiveIndividual· Nurse Practitioner· Littleton, CO
Nurse Practitioner (MS, FNP-C) with Physician Housecalls LLC, practicing in Littleton, Colorado. Part D covered 6,105 prescriptions written in 2024, 87% of them generic.
Overview
| NPI | 1043347065 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MS, FNP-C |
| Sole proprietor | No |
| NPI issued | Feb 27, 2007 |
| Last updated in NPPES | Sep 9, 2025 |
| Certified by provider | Sep 9, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 118557 | CO |
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 - Nurse Practitioner (CO) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 6,105 · 6,196 30-day fills |
|---|---|
| Patients | 223 |
| Total drug cost | $852,207 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Physician Housecalls LLCLakewood, CO · 126 clinicians
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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