Isabella Osiemo, CRNP
NPI 1821637349ActiveIndividual· Nurse Practitioner, Gerontology· Rosedale, MD
Nurse Practitioner, Gerontology (CRNP) with Optimize Medical Group, practicing in Rosedale, Maryland. In 2024 Medicare paid $159,730 for 269 patients, and Part D covered 1,477 of their prescriptions, 83% of them generic.
Overview
| NPI | 1821637349 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNP |
| Sole proprietor | No |
| NPI issued | Jan 1, 2020 |
| Last updated in NPPES | Mar 25, 2020 |
| Certified by provider | Mar 25, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | R202111 | MD |
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 (DC); Practitioner - Nurse Practitioner (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 269 |
|---|---|
| Services billed | 2,558 across 6 procedure codes |
| Paid by Medicare | $159,730 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,477 · 1,511 30-day fills |
|---|---|
| Patients | 207 |
| Total drug cost | $92,644 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Optimize Medical GroupPikesville, MD · 32 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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