BRIAN J RAU MD
NPI 1225266562
Radiology - Diagnostic Radiology in Bismarck, ND
About Brian J Rau Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BRIAN J RAU MD (NPI 1225266562) is an individual diagnostic radiology provider in Bismarck, North Dakota, licensed in South Dakota (9534) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Sidney Health Center, and maintains a secondary practice location in Knoxville.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
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
Brian J Rau Md 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
7Medicare enrollment records show Brian Rau reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bismarck, ND 58504
- Reassigned Medicare billing, North Dakota enrollment
- 779 clinicians in this Medicare group
Mobridge, SD 57601
- Reassigned Medicare billing, South Dakota enrollment
- 259 clinicians in this Medicare group
Lima, OH 45801
- Reassigned Medicare billing, Ohio and North Carolina enrollments
- Also billed through NPI 1619206133 (North Carolina)
- 85 clinicians in this Medicare group
Cincinnati, OH 45241
- Reassigned Medicare billing, Ohio enrollment
- 423 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Tennessee enrollment
- 1,003 clinicians in this Medicare group
Las Vegas, NV 89106
- Reassigned Medicare billing, North Dakota enrollment
Wilmington, NC 28401
- Reassigned Medicare billing, North Carolina enrollment
- 444 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.
Areas of Expertise CMS Part B claims 78
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sidney Health Center
Critical Access Hospitals · Sidney, MTSanford Medical Center Bismarck
Acute Care Hospitals · Bismarck, NDMckenzie County Healthcare Systems Inc
Critical Access Hospitals · Watford City, NDSakakawea Medical Center - Cah
Critical Access Hospitals · Hazen, NDJacobson Memorial Hospital Care Center
Critical Access Hospitals · Elgin, NDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 58501 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.
BISMARCK, ND 58501
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 Brian Rau's NPI number?
The NPI number for Brian Rau is 1225266562. It was assigned to this individual provider in the NPPES registry on June 25, 2009.
Where is Brian Rau located?
Brian Rau practices at 222 N 7th St, Bismarck, ND 58501. The listed phone number is (701) 323-6000.
What is Brian Rau's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Brian Rau enrolled in Medicare?
Yes. Brian Rau 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 Brian Rau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Rau reassigns Medicare benefits to 7 organizations: Sanford Bismarck (Bismarck, ND), Avera St Lukes (Mobridge, SD), Knd Development 59 LLC (Lima, OH), Beacon Orthopaedics & Sports Medicine, Ltd (Cincinnati, OH), Summit Medical Group, PLLC (Brentwood, TN) and 2 more organizations, listed in the Medicare section above. 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 Brian Rau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brian Rau accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Cross Blue Shield of North Dakota and CareSource and 2 other insurers list Brian Rau as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Brian Rau affiliated with any hospitals?
According to CMS data, Brian Rau is affiliated with Sidney Health Center, Sanford Medical Center Bismarck, Mckenzie County Healthcare Systems Inc, Sakakawea Medical Center - Cah and Jacobson Memorial Hospital Care Center.
When was this NPI record last updated?
The NPPES record for Brian Rau was last updated on November 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.