Danielle O. Castillo, MD
NPI 1457512667ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Chesapeake, VA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Bayview Physician Services PC, practicing in Chesapeake, Virginia. Their prescriptions cost Medicare Part D more than their services did: $655,856 for 1,485 claims, against $226,816 paid for services in 2024. Corcept Therapeutics was the largest of 25 companies reporting payments in 2025, $2,275 in all, mostly food and beverage. Lists Chesapeake General Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1457512667 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 19, 2008 |
| Last updated in NPPES | May 7, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 0101250053 | VA |
| Internal Medicine | 207R00000X | 0101250053 | VA |
| 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 - Endocrinology (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 446 |
|---|---|
| Services billed | 14,788 across 19 procedure codes |
| Paid by Medicare | $226,816 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,485 · 3,643 30-day fills |
|---|---|
| Patients | 260 |
| Total drug cost | $655,856 |
| Generic share | 40% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Endocrinology |
Medical group
- Bayview Physician Services PCChesapeake, VA · 310 clinicians
Hospital affiliations
- Chesapeake General HospitalChesapeake, VA
- Sentara Leigh HospitalNorfolk, VA
- Sentara Norfolk General HospitalNorfolk, VA
- Sentara Virginia Beach General HospitalVirginia Beach, VA
- The Outer Banks Hospital, IncNags Head, NC
Industry payments (Open Payments)
- 2025$2,275 · 109 payments from 25 companies
- 2024$2,328 · 116 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $337.22 | 12 |
| Mannkind Corporation | $182.56 | 10 |
| Amgen Inc. | $179.64 | 10 |
| Abbvie Inc. | $164.07 | 11 |
| Novo Nordisk Inc | $160.86 | 7 |
What the 2025 payments were for
- Food and Beverage$2,275 · 109 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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