Tammy S. Hwang, NP
NPI 1639681513ActiveIndividual· Nurse Practitioner, Family· San Jose, CA
Nurse Practitioner, Family (NP) with Sutter Bay Medical Foundation and 1 other group, practicing in San Jose, California. Their prescriptions cost Medicare Part D more than their services did: $4,433 for 81 claims, against $1,131 paid for services in 2024. Hologic Sales and Service, LLC reported $18.03 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1639681513 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Oct 31, 2017 |
| Last updated in NPPES | Jun 5, 2025 |
| Certified by provider | Jun 5, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 95007792 | 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 | 13 |
|---|---|
| Services billed | 15 across 6 procedure codes |
| Paid by Medicare | $1,131 |
Part D prescriptions in 2024
| Prescriptions (claims) | 81 · 158 30-day fills |
|---|---|
| Patients | 41 |
| Total drug cost | $4,433 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
- Indian Health Center of Santa Clara ValleySan Jose, CA · 34 clinicians
Industry payments (Open Payments)
- 2024$18.03 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $18.03 | 1 |
What the 2024 payments were for
- Food and Beverage$18.03 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 220 family nurse practitioners in San Jose · All family nurse practitioners in California