Martha Plack, RN
NPI 1891531349ActiveIndividual· Nurse Practitioner· San Francisco, CA
Nurse Practitioner (RN) with Felton Institute, practicing in San Francisco, California. Their prescriptions cost Medicare Part D more than their services did: $41,776 for 139 claims, against $4,399 paid for services in 2024.
Overview
| NPI | 1891531349 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN |
| Sole proprietor | Yes |
| NPI issued | Jul 3, 2024 |
| Last updated in NPPES | Sep 18, 2024 |
| Certified by provider | Aug 30, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 95212247 | CA |
| Registered Nurse | 163W00000X | 95212247 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 12 |
|---|---|
| Services billed | 34 across 4 procedure codes |
| Paid by Medicare | $4,399 |
Part D prescriptions in 2024
| Prescriptions (claims) | 139 · 141 30-day fills |
|---|---|
| Patients | 16 |
| Total drug cost | $41,776 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2024 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Felton InstituteAlameda, CA · 14 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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All 447 nurse practitioners in San Francisco · All nurse practitioners in California