Diane Montefalcon Castignani, FNP
NPI 1881132801ActiveIndividual· Nurse Practitioner· San Jose, CA
Nurse Practitioner (FNP) with University Healthcare Alliance, practicing in San Jose, California. In 2024 Medicare paid $32,551 for 427 patients, and Part D covered 332 of their prescriptions, 74% of them generic. Lists Stanford Health Care as a hospital affiliation.
Overview
| NPI | 1881132801 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Feb 9, 2017 |
| Last updated in NPPES | Jul 11, 2022 |
| Certified by provider | Jul 11, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 95005831 | 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 | 427 |
|---|---|
| Services billed | 577 across 19 procedure codes |
| Paid by Medicare | $32,551 |
Part D prescriptions in 2024
| Prescriptions (claims) | 332 · 384 30-day fills |
|---|---|
| Patients | 255 |
| Total drug cost | $12,850 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- University Healthcare AlliancePleasanton, CA · 327 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nurse practitioners in San Jose
- 1316677495
- 1366580201
- 1376160697
- 1467926725
- 1568012144
- 1578270690
- 1801340047
- 1811061369
- 1811543457
- 1952008906
- 1972787711
- 1053819961
All 107 nurse practitioners in San Jose · All nurse practitioners in California