MR. BRIAN F FLANAGAN MD
NPI 1225017767
Anesthesiology in Carmichael, CA
About Mr. Brian F Flanagan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. BRIAN F FLANAGAN MD (NPI 1225017767) is an individual anesthesiology provider in Carmichael, California, licensed in California (C52943) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Marysville.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Brian F Flanagan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Brian Flanagan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carmichael, CA 95608
- Reassigned Medicare billing, California enrollment
- 48 clinicians in this Medicare group
Sacramento, CA 95821
- Reassigned Medicare billing, California enrollment
- 167 clinicians in this Medicare group
Santa Rosa, CA 95404
- Reassigned Medicare billing, California enrollment
- 140 clinicians in this Medicare group
Castro Valley, CA 94546
- Reassigned Medicare billing, California enrollment
- 30 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
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.
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.
CARMICHAEL, CA 95608
CARMICHAEL, CA 95608
CARMICHAEL, CA 95608
CARMICHAEL, CA 95608
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 Flanagan's NPI number?
The NPI number for Brian Flanagan is 1225017767. It was assigned to this individual provider in the NPPES registry on January 12, 2006.
Where is Brian Flanagan located?
Brian Flanagan practices at 6501 Coyle Ave, Carmichael, CA 95608. The listed phone number is (916) 537-5000.
What is Brian Flanagan's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Brian Flanagan enrolled in Medicare?
Yes. Brian Flanagan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Brian Flanagan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Flanagan reassigns Medicare benefits to 4 organizations: Metropolitan Anesthesiology Consultants A Medical Group Inc (Carmichael, CA), Central Anesthesia Service Exchange Medical Group, Inc. (Sacramento, CA), Anesthesia & Analgesia Medical Group, Inc. (Santa Rosa, CA) and Alameda Anesthesia Associates Medical Group, Inc (Castro Valley, CA). 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 Flanagan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Brian Flanagan was last updated on August 21, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.