Gabriel Castillo, MD
NPI 1811484835ActiveIndividual· Internal Medicine, Gastroenterology· Astoria, NY
Internal Medicine, Gastroenterology (MD) in Astoria, New York, trained at Columbia University College of Physicians and Surgeons (class of 2018). 41 Medicare patients in 2024, $9,703 paid; nearly all of their 66 Part D prescriptions were generic (91%).
Overview
| NPI | 1811484835 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 16, 2018 |
| Last updated in NPPES | Aug 22, 2024 |
| Certified by provider | Aug 22, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 300941 | NY |
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 - Gastroenterology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 90 across 20 procedure codes |
| Paid by Medicare | $9,703 |
Part D prescriptions in 2024
| Prescriptions (claims) | 66 · 71 30-day fills |
|---|---|
| Patients | 32 |
| Total drug cost | $2,980 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Gastroenterology |
Medical group
- North Shore Medical Group of the Mount Sinai School of MedicineBrooklyn, NY · 331 clinicians
Hospital affiliation
- Mount Sinai HospitalNew York, NY
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 17 gastroenterologists in Astoria · All gastroenterologists in New York