In the latest weekly update from the CMS NPI registry, Massachusetts recorded 8 physician NPI deactivations, representing 3% of the national total for the week of May 18-24, 2026. All 8 deactivations were for individual practitioners, with no organizational NPIs deactivated in the state during this period, reflecting administrative changes for individual physicians.
Specialty and Geographic Distribution
Among the deactivated NPIs, Cardiovascular Disease was the most frequent specialty, with 2 records, representing 25% of the total. Other specialties each accounted for 1 deactivation, including Internal Medicine, Geriatric Medicine (Internal Medicine), Obstetrics & Gynecology, and Endocrinology, Diabetes & Metabolism. This distribution covers a range of medical fields within the week's deactivations. Geographically, 4 deactivations were associated with Boston, accounting for half of the state's total. This concentration in the state capital and largest city is consistent with its role as a major healthcare hub. The remaining 4 deactivations were distributed across Easthampton, Northboro, Marstons Mills, and Lincoln, each recording 1 deactivation.
Understanding NPI Deactivations
It is important to note that an NPI deactivation is an administrative status change in the federal NPPES registry. It does not by itself indicate a license action or that a provider has stopped practicing. Hipa.ai retains a name cache from public CMS files captured before deactivation, providing historical context.
