Justin Issac Rammage, APRN-CNP
NPI 1609330968ActiveIndividual· Nurse Practitioner· Ada, OK
Nurse Practitioner (APRN-CNP) with Chickasaw Nation Division of Health Chickasaw Nation Medical Center, practicing in Ada, Oklahoma. In 2024 Medicare paid $16,418 for 97 patients, and Part D covered 155 of their prescriptions, 68% of them generic. Xeris Pharmaceuticals, Inc. reported $123.83 in payments in 2025, mostly food and beverage. Lists Chickasaw Nation Medical Center as a hospital affiliation.
Overview
| NPI | 1609330968 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN-CNP |
| Sole proprietor | No |
| NPI issued | Jan 30, 2019 |
| Last updated in NPPES | Oct 5, 2021 |
| Certified by provider | Sep 8, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 114141 | OK |
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 (OK); Practitioner - Nurse Practitioner (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 97 |
|---|---|
| Services billed | 218 across 15 procedure codes |
| Paid by Medicare | $16,418 |
Part D prescriptions in 2024
| Prescriptions (claims) | 155 · 158 30-day fills |
|---|---|
| Patients | 56 |
| Total drug cost | $16,081 |
| Generic share | 68% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Chickasaw Nation Division of Health Chickasaw Nation Medical CenterAda, OK · 240 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$123.83 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Xeris Pharmaceuticals, Inc. | $123.83 | 1 |
What the 2025 payments were for
- Food and Beverage$123.83 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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