Alexa Marie Castellano, MD
NPI 1578978813ActiveIndividual· Otolaryngology· Ventura, CA
Otolaryngology (MD) in Ventura, California, trained at University of Missouri, Columbia School of Medicine (class of 2014). 86 Medicare patients in 2024, $18,240 paid; nearly all of their 192 Part D prescriptions were generic (97%). Glaxosmithkline, LLC. was the largest of 3 companies reporting payments in 2025, $234.17 in all, mostly food and beverage.
Overview
| NPI | 1578978813 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 25, 2014 |
| Last updated in NPPES | Jul 10, 2023 |
| Certified by provider | Jul 10, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | A162090 | CA |
| Otolaryngology | 207Y00000X | 125.065078 | IL |
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 - Otolaryngology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 86 |
|---|---|
| Services billed | 210 across 40 procedure codes |
| Paid by Medicare | $18,240 |
Part D prescriptions in 2024
| Prescriptions (claims) | 192 · 326 30-day fills |
|---|---|
| Patients | 62 |
| Total drug cost | $4,064 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Otolaryngology |
| Telehealth | Offers telehealth |
Medical group
- County of VenturaVentura, CA · 344 clinicians
Hospital affiliation
- Ventura County Medical CenterVentura, CA
Industry payments (Open Payments)
- 2025$234.17 · 7 payments from 3 companies
- 2024$291.34 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $181.38 | 5 |
| Medtronic, Inc. | $32.33 | 1 |
| Regeneron Healthcare Solutions, Inc. | $20.46 | 1 |
What the 2025 payments were for
- Food and Beverage$234.17 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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