Katharine Elizabeth Gellish, NP-C
NPI 1083373633ActiveIndividual· Nurse Practitioner, Primary Care· Littleton, CO
Nurse Practitioner, Primary Care (NP-C) with Iora Health Colorado, P.C., practicing in Littleton, Colorado. Their prescriptions cost Medicare Part D more than their services did: $375,812 for 5,665 claims, against $46,334 paid for services in 2024. Lists Adventhealth Littleton and 1 other hospital as hospital affiliations.
Overview
| NPI | 1083373633 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP-C |
| Sole proprietor | No |
| NPI issued | Dec 10, 2021 |
| Last updated in NPPES | Apr 17, 2025 |
| Certified by provider | Apr 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Primary Care Primary | 363LP2300X | APN.0996886-NP | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 292 |
|---|---|
| Services billed | 867 across 36 procedure codes |
| Paid by Medicare | $46,334 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,665 · 13,993 30-day fills |
|---|---|
| Patients | 751 |
| Total drug cost | $375,812 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Iora Health Colorado, P.C.Aurora, CO · 42 clinicians
Hospital affiliations
- Adventhealth LittletonLittleton, CO
- Adventhealth PorterDenver, CO
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other primary care nurse practitioners in Littleton
- 1306241278
- 1144730326
- 1255698510
- 1932996436
- 1558097162
- 1477683225
- 1558379883