Oswaldo Apolinar Nicastro, M.D.
NPI 1043336613ActiveIndividual· Family Medicine· Wilmington, DE
Family Medicine (M.D.) with Tidalhealth Atlantic Inc and 1 other group, practicing in Wilmington, Delaware. Their prescriptions cost Medicare Part D more than their services did: $904,181 for 10,073 claims, against $179,512 paid for services in 2024. Corcept Therapeutics was the largest of 12 companies reporting payments in 2025, $984.66 in all, mostly food and beverage. Lists Atlantic General Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1043336613 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 22, 2007 |
| Last updated in NPPES | Jul 22, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | C1-0008737 | DE |
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 - Family Practice (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 564 |
|---|---|
| Services billed | 3,596 across 55 procedure codes |
| Paid by Medicare | $179,512 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,073 · 23,800 30-day fills |
|---|---|
| Patients | 702 |
| Total drug cost | $904,181 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Tidalhealth Atlantic IncSelbyville, DE · 91 clinicians
- Tidalhealth Primary Care LLCMillsboro, DE · 65 clinicians
Hospital affiliations
- Atlantic General HospitalBerlin, MD
- Beebe Medical CenterLewes, DE
- Tidalhealth Nanticoke, Inc.Seaford, DE
- Tidalhealth Peninsula Regional, IncSalisbury, MD
Other facilities
- Adoration Home HealthHome health agency · Salisbury, MD
- Amedisys Home HealthHome health agency · Georgetown, DE
- Enhabit Home HealthHome health agency · Salisbury, MD
- HomecallHome health agency · Easton, MD
- Tidalhealth Home CareHome health agency · Salisbury, MD
- Coastal Hospice IncHospice · Salisbury, MD
Industry payments (Open Payments)
- 2025$984.66 · 42 payments from 12 companies
- 2024$1,869 · 88 payments from 31 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $215.02 | 7 |
| Amgen Inc. | $201.97 | 5 |
| Lilly USA, LLC | $128.81 | 7 |
| Novo Nordisk Inc | $92.06 | 5 |
| Phathom Pharmaceuticals, Inc. | $81.77 | 4 |
What the 2025 payments were for
- Food and Beverage$984.66 · 42 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 241 family medicine physicians in Wilmington · All family medicine physicians in Delaware