SPENCER JAMES O'REILLY CRNA
NPI 1699632182
Nurse Anesthetist, Certified Registered in Rochester, MN
About Spencer James O'reilly Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SPENCER JAMES O'REILLY CRNA (NPI 1699632182) is an individual nurse anesthetist, certified registered in Rochester, Minnesota, licensed in Minnesota (3325) and active in the NPI registry since January 2026. He is enrolled in Medicare PECOS, is affiliated with Northfield Hospital, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Spencer James O'reilly Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Spencer O'reilly reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rochester, MN 55905
- Reassigned Medicare billing, Minnesota enrollment
- 6,534 clinicians in this Medicare group
Kenyon, MN 55946
- Reassigned Medicare billing, Minnesota enrollment
- 249 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northfield Hospital
Acute Care Hospitals · Northfield, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55905 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCHESTER, MN 55905
ROCHESTER, MN 55905
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Spencer O'reilly's NPI number?
The NPI number for Spencer O'reilly is 1699632182. It was assigned to this individual provider in the NPPES registry on January 6, 2026.
Where is Spencer O'reilly located?
Spencer O'reilly practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.
What is Spencer O'reilly's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Spencer O'reilly enrolled in Medicare?
Yes. Spencer O'reilly is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Spencer O'reilly's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Spencer O'reilly reassigns Medicare benefits to 2 organizations: Mayo Clinic (Rochester, MN) and Northfield Hospital (Kenyon, MN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Spencer O'reilly's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Spencer O'reilly affiliated with any hospitals?
According to CMS data, Spencer O'reilly is affiliated with Northfield Hospital.
When was this NPI record last updated?
The NPPES record for Spencer O'reilly was last updated on March 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.