Joy Santillana Diores, NP
NPI 1689337776ActiveIndividual· Nurse Practitioner, Psych/Mental Health· West Covina, CA
Nurse Practitioner, Psych/Mental Health (NP) with Home Care MD Medical Group, practicing in West Covina, California. Their prescriptions cost Medicare Part D more than their services did: $29,071 for 988 claims, against $17,189 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 3 companies reporting payments in 2025, $374.02 in all, mostly food and beverage.
Overview
| NPI | 1689337776 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | Yes |
| NPI issued | Oct 16, 2021 |
| Last updated in NPPES | Mar 20, 2026 |
| Certified by provider | Mar 20, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 95019494 | CA |
| Registered Nurse | 163W00000X | 95073474 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 126 |
|---|---|
| Services billed | 414 across 9 procedure codes |
| Paid by Medicare | $17,189 |
Part D prescriptions in 2024
| Prescriptions (claims) | 988 · 1,258 30-day fills |
|---|---|
| Patients | 114 |
| Total drug cost | $29,071 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Home Care MD Medical GroupWest Covina, CA · 13 clinicians
Industry payments (Open Payments)
- 2025$374.02 · 3 payments from 3 companies
- 2024$121.63 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $128.92 | 1 |
| Vanda Pharmaceuticals Inc. | $124.85 | 1 |
| Teva Pharmaceuticals USA, Inc. | $120.25 | 1 |
What the 2025 payments were for
- Food and Beverage$374.02 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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