Ylec Mariana Cardenas Castillo, M.D.
NPI 1770967549ActiveIndividual· Psychiatry & Neurology, Neuromuscular Medicine· New Haven, CT
Psychiatry & Neurology, Neuromuscular Medicine (M.D.) with Hartford Healthcare Medical Group Specialists PLLC and 1 other group, practicing in New Haven, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $273,343 for 520 claims, against $17,617 paid for services in 2024. Argenx US, Inc. was the largest of 5 companies reporting payments in 2025, $262.28 in all, mostly food and beverage. Lists Charlotte Hungerford Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1770967549 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 11, 2015 |
| Last updated in NPPES | Sep 7, 2021 |
| Certified by provider | Sep 7, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neuromuscular Medicine Primary | 2084N0008X | 64082 | CT |
| Student in an Organized Health Care Education/Training Program | 390200000X | MT208366 | PA |
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 - Neurology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 96 |
|---|---|
| Services billed | 183 across 18 procedure codes |
| Paid by Medicare | $17,617 |
Part D prescriptions in 2024
| Prescriptions (claims) | 520 · 766 30-day fills |
|---|---|
| Patients | 114 |
| Total drug cost | $273,343 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Medical groups
- Hartford Healthcare Medical Group Specialists PLLCBridgeport, CT · 1,588 clinicians
- Hartford HospitalHartford, CT · 1,044 clinicians
Hospital affiliations
- Charlotte Hungerford HospitalTorrington, CT
- Hartford HospitalHartford, CT
- Midstate Medical CenterMeriden, CT
- The Hospital of Central ConnecticutNew Britain, CT
- Yale-New Haven HospitalNew Haven, CT
Other facilities
- Hartford Healthcare at HomeHome health agency · East Hartford, CT
Industry payments (Open Payments)
- 2025$262.28 · 11 payments from 5 companies
- 2024$18.06 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Argenx US, Inc. | $110.50 | 4 |
| Genentech USA, Inc. | $88.61 | 4 |
| Amgen Inc. | $28.88 | 1 |
| Abbvie Inc. | $18.30 | 1 |
| Cycle Pharmaceuticals Inc | $15.99 | 1 |
What the 2025 payments were for
- Food and Beverage$262.28 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Psychiatry & Neurology, Neuromuscular Medicine providers in Connecticut