Maria Lourdes Castineira, MD
NPI 1730382599ActiveIndividual· Psychiatry & Neurology, Psychiatry· Arlington, VA
Psychiatry & Neurology, Psychiatry (MD) with Cornerstone Montgomery Inc, practicing in Arlington, Virginia. Their prescriptions cost Medicare Part D more than their services did: $669,924 for 2,127 claims, against $59,122 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 4 companies reporting payments in 2025, $425.25 in all, mostly food and beverage.
Overview
| NPI | 1730382599 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 8, 2007 |
| Last updated in NPPES | Aug 27, 2026 |
| Certified by provider | Aug 27, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | MD066601 | MD |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | 0101267668 | VA |
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 - Psychiatry (DC); Practitioner - Psychiatry (MD); Practitioner - Psychiatry (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 133 |
|---|---|
| Services billed | 652 across 12 procedure codes |
| Paid by Medicare | $59,122 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,127 · 2,584 30-day fills |
|---|---|
| Patients | 114 |
| Total drug cost | $669,924 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Cornerstone Montgomery IncSilver Spring, MD · 23 clinicians
Industry payments (Open Payments)
- 2025$425.25 · 9 payments from 4 companies
- 2024$238.13 · 19 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $273.48 | 3 |
| Neurocrine Biosciences, Inc. | $104.66 | 4 |
| Otsuka America Pharmaceutical, Inc. | $25.65 | 1 |
| Abbvie Inc. | $21.46 | 1 |
What the 2025 payments were for
- Food and Beverage$425.25 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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