Christina Cassandra Gerena, FNP-C
NPI 1871246702ActiveIndividual· Nurse Practitioner, Family· Okmulgee, OK
Nurse Practitioner, Family (FNP-C) in Okmulgee, Oklahoma, trained at University of Southern California Keck School of Medicine (class of 2020). Their prescriptions cost Medicare Part D more than their services did: $669,093 for 5,574 claims, against $79,428 paid for services in 2024. Pharmacosmos Therapeutics Inc. was the largest of 3 companies reporting payments in 2025, $193.55 in all, mostly food and beverage.
Overview
| NPI | 1871246702 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C |
| Sole proprietor | No |
| NPI issued | Jan 31, 2022 |
| Last updated in NPPES | May 22, 2024 |
| Certified by provider | May 22, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 205370 | 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 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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 112 |
|---|---|
| Services billed | 1,999 across 33 procedure codes |
| Paid by Medicare | $79,428 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,574 · 9,615 30-day fills |
|---|---|
| Patients | 356 |
| Total drug cost | $669,093 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Nurse Practitioner |
Medical group
- Access Pain SolutionsMuskogee, OK · 13 clinicians
Hospital affiliations
- Hillcrest Hospital HenryettaHenryetta, OK
- Muscogee (Creek) Nation Medical CenterOkmulgee, OK
Other facilities
- Enhabit Home Health of Eastern OklahomaHome health agency · Muskogee, OK
- Mays Home Health of Nc OkHome health agency · Okmulgee, OK
Industry payments (Open Payments)
- 2025$193.55 · 4 payments from 3 companies
- 2024$13.76 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pharmacosmos Therapeutics Inc. | $117.20 | 1 |
| Astrazeneca Pharmaceuticals LP | $50.94 | 2 |
| Otsuka America Pharmaceutical, Inc. | $25.41 | 1 |
What the 2025 payments were for
- Food and Beverage$193.55 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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