Maria Castells, MD
NPI 1427039478ActiveIndividual· Allergy & Immunology· Gardner, MA
Allergy & Immunology (MD) with Brigham and Womens Physicians Organization Inc, practicing in Gardner, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $977,825 for 349 claims, against $15,379 paid for services in 2024. Blueprint Medicines Corporation was the largest of 8 companies reporting payments in 2025, $19,891 in all, mostly consulting fees. Lists Brigham and Women's Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1427039478 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 8, 2005 |
| Last updated in NPPES | Dec 9, 2019 |
| Certified by provider | Dec 9, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 73716 | MA |
| Specialist | 174400000X | 73716 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Allergy/Immunology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 105 |
|---|---|
| Services billed | 218 across 10 procedure codes |
| Paid by Medicare | $15,379 |
Part D prescriptions in 2024
| Prescriptions (claims) | 349 · 482 30-day fills |
|---|---|
| Patients | 75 |
| Total drug cost | $977,825 |
| Generic share | 63% of claims |
Education and affiliations
| Graduation year | 1979 |
|---|---|
| Medicare specialty | Allergy/Immunology |
| Telehealth | Offers telehealth |
Medical group
- Brigham and Womens Physicians Organization IncBoston, MA · 2,994 clinicians
Hospital affiliations
- Brigham and Women's HospitalBoston, MA
- Massachusetts General HospitalBoston, MA
Industry payments (Open Payments)
- 2025$19,891 · 18 payments from 8 companies
- 2024$13,560 · 10 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Blueprint Medicines Corporation | $5,495 | 2 |
| Tersera Therapeutics LLC | $4,602 | 8 |
| Genzyme Corporation | $3,140 | 1 |
| Sanofi US Services Inc. | $2,455 | 3 |
| Cycle Pharmaceuticals Inc | $1,560 | 1 |
What the 2025 payments were for
- Consulting Fee$8,243 · 5 payments
- Honoraria$5,495 · 2 payments
- Compensation for serving as faculty or as a speaker for a medical education program$3,000 · 1 payment
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$1,700 · 1 payment
- Travel and Lodging$1,117 · 4 payments
- Food and Beverage$224.01 · 3 payments
- Education$112.50 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records