UMBRA ANESTHESIOLOGY
Medicare Clinicians for NPI 1881918878
Anesthesiology in St Thomas, VI
Clinicians Billing Medicare Through This Organization CMS
Clinicians who reassign their Medicare billing to this organization, per CMS enrollment records.
Umbra Anesthesiology in St Thomas, VI bills Medicare for 23 clinicians across 2 Medicare specialties. The largest specialties are Certified Registered Nurse Anesthetist (CRNA) with 19 and Anesthesiology with 4. Search by name or filter by specialty; each name links to that clinician's NPI profile.
Certified Registered Nurse Anesthetist (CRNA) (19)
Anesthesiology (4)
About this data
Medicare reassignment. A clinician who works for a hospital, clinic or medical group usually signs a Medicare reassignment (form CMS-855R). It lets the organization bill Medicare for the clinician's services and receive the payment. This page lists the clinicians whose reassignment to Umbra Anesthesiology appears in the CMS Revalidation Reassignment List.
Who is included. Clinicians who bill Medicare under their own NPI through this organization. A clinician can reassign to more than one organization, so the same name may also appear under other groups.
Addresses and phone numbers come from each clinician's own NPPES record, so they may point to another office or to the clinician's own practice.
Source: CMS Revalidation Reassignment List, October 2026 release; addresses, phone numbers and Medicare status from NPPES and PECOS. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
