Mark Allen Friemel, RN
NPI 1801687843ActiveIndividual· Registered Nurse, General Practice· Tulsa, OK
Registered Nurse, General Practice (RN) in Tulsa, Oklahoma, licensed in OK, with an NPI issued in May 2025.
Overview
| NPI | 1801687843 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN |
| Sole proprietor | Yes |
| NPI issued | May 16, 2025 |
| Last updated in NPPES | Apr 8, 2026 |
| Certified by provider | Apr 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Registered Nurse, General Practice Primary | 163WG0000X | 8050832 | OK |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
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