Melissa Osorio, DO
NPI 1841828423ActiveIndividual· Hospitalist· La Jolla, CA
Hospitalist (DO) in La Jolla, California, trained at Touro Un Col of Osteopathic Medicine, Henderson (class of 2020). Their prescriptions cost Medicare Part D more than their services did: $50,878 for 618 claims, against $22,836 paid for services in 2024. Astellas Pharma US Inc was the largest of 2 companies reporting payments in 2025, $41.40 in all, mostly food and beverage.
Overview
| NPI | 1841828423 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 30, 2020 |
| Last updated in NPPES | Jun 15, 2023 |
| Certified by provider | Jun 15, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 20A21198 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Hospitalist (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 169 |
|---|---|
| Services billed | 300 across 18 procedure codes |
| Paid by Medicare | $22,836 |
Part D prescriptions in 2024
| Prescriptions (claims) | 618 · 1,170 30-day fills |
|---|---|
| Patients | 250 |
| Total drug cost | $50,878 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Touro Un Col of Osteopathic Medicine, Henderson |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Hospitalist |
Medical group
- Elite Medical Group of Southern CaliforniaSan Bernardino, CA · 10 clinicians
Hospital affiliations
- Riverside Community HospitalRiverside, CA
- San Antonio Regional HospitalUpland, CA
- St Bernardine Medical CenterSan Bernardino, CA
Industry payments (Open Payments)
- 2025$41.40 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $26.76 | 1 |
| Astellas Pharma Global Development | $14.64 | 1 |
What the 2025 payments were for
- Food and Beverage$41.40 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 69 hospitalists in La Jolla · All hospitalists in California