Charles Malak, NP
NPI 1629583596ActiveIndividual· Nurse Practitioner· Palo Alto, CA
Nurse Practitioner (NP) with Sutter Bay Medical Foundation and 1 other group, practicing in Palo Alto, California. Mostly services rather than prescriptions: Medicare paid $13,886 for 53 patients in 2024, with only 30 Part D claims. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 4 companies reporting payments in 2025, $458.03 in all, mostly food and beverage. Lists Sequoia Hospital as a hospital affiliation.
Overview
| NPI | 1629583596 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | Yes |
| NPI issued | Dec 13, 2017 |
| Last updated in NPPES | Apr 15, 2025 |
| Certified by provider | Apr 15, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 553346 | CA |
| Nurse Practitioner, Family | 363LF0000X | NP95006648 | 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 | 53 |
|---|---|
| Services billed | 293 across 19 procedure codes |
| Paid by Medicare | $13,886 |
Part D prescriptions in 2024
| Prescriptions (claims) | 30 · 30 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $161.04 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
- Bass Medical GroupChico, CA · 291 clinicians
Hospital affiliation
- Sequoia HospitalRedwood City, CA
Industry payments (Open Payments)
- 2025$458.03 · 4 payments from 4 companies
- 2024$907.17 · 7 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $125.00 | 1 |
| Biogen, Inc. | $125.00 | 1 |
| Vertex Pharmaceuticals Incorporated | $117.80 | 1 |
| Pfizer Inc. | $90.23 | 1 |
What the 2025 payments were for
- Food and Beverage$458.03 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 318 nurse practitioners in Palo Alto · All nurse practitioners in California