Dr. Maria C. Castells, MD

Dr. Castells practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.

Dr. Castells' NPI, 1427039478, was assigned on November 8, 2005. Dr. Castells holds Massachusetts license 73716.

Dr. Castells' primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.

Dr. Castells' primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Castells is also affiliated with Massachusetts General Hospital. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Castells to 1 more hospital, 1 hospital outpatient department and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castells practices, 4 sites in all. Vendor and product names are available with a free account.

Allergy and immunology is Dr. Castells' primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Castells is licensed in Massachusetts.

CMS data shows 121 Medicare services from Dr. Castells across 2 procedure codes in 2024, all of them office visits, for 105 Medicare patients. Medicare paid $12,980 for them.

CMS counts 105 Medicare patients who saw Dr. Castells in 2024. The largest group is 65 to 74, with 44 patients. 62% of them have high blood pressure, and 58% have high cholesterol. 29% are also on Medicaid. Their average risk score is 1.71, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Castells' median patient age at 64, with 79% women.

In 2024, Dr. Castells wrote 349 Medicare Part D claims for 75 patients. 63% of them were for generic drugs. CMS names the drug for 246 of them, across 12 drugs with 11 or more claims each, at $871,233 in total drug cost. In 2023, CMS named 373 claims across 16 drugs.

Dr. Castells accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Castells as offering telehealth.

Dmand AI links 2 papers to Dr. Castells, published from 2014 to 2018. Dr. Castells' most frequent co-authors are Jacob P. Laubach, MD, Min Jeong Lee, MD and Robert Lawrence Schlossman, MD.

Dmand AI links Dr. Castells to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Mastocytosis, Systemic and Mast Cell Activation Disorders.

CMS Open Payments shows 76 general payments to Dr. Castells from 22 drug and device companies from 2016 to 2025. Honoraria make up the largest share, 45% of the total. Blueprint Medicines Corporation paid the most, $43,832. It also lists 2 research payments totaling $7,250 from 2023 to 2025.