HILLARY DIANE BRENNAN CRNA
NPI 1417243577
Nurse Anesthetist, Certified Registered in New Orleans, LA
About Hillary Diane Brennan Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HILLARY DIANE BRENNAN CRNA (NPI 1417243577) is an individual nurse anesthetist, certified registered in New Orleans, Louisiana, licensed in Louisiana (AP06484) and active in the NPI registry since June 2011. She is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Hillary Diane Brennan 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
9Medicare enrollment records show Hillary Brennan reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Orleans, LA 70121
- Reassigned Medicare billing, Louisiana enrollment
- 4,559 clinicians in this Medicare group
Modesto, CA 95355
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1669846986 (California), NPI 1467825844 (California), NPI 1972877264 (California), NPI 1457593980 (California)
- 101 clinicians in this Medicare group
Stockton, CA 95210
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Fairfield, CA 94534
- Reassigned Medicare billing, California enrollment
- 64 clinicians in this Medicare group
Oakland, CA 94612
- Reassigned Medicare billing, California enrollment
- 48 clinicians in this Medicare group
Vallejo, CA 94590
- Reassigned Medicare billing, California enrollment
- 128 clinicians in this Medicare group
Napa, CA 94558
- Reassigned Medicare billing, California enrollment
- 9 clinicians in this Medicare group
San Francisco, CA 94104
- Reassigned Medicare billing, California enrollment
- 94 clinicians in this Medicare group
Santa Rosa, CA 95404
- Reassigned Medicare billing, California enrollment
- 140 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 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 70121 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.
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
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 Hillary Brennan's NPI number?
The NPI number for Hillary Brennan is 1417243577. It was assigned to this individual provider in the NPPES registry on June 27, 2011. The provider is also known as Hillary Diane Seay.
Where is Hillary Brennan located?
Hillary Brennan practices at 1514 Jefferson Hwy, New Orleans, LA 70121. The listed phone number is (504) 842-3755.
What is Hillary Brennan's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Hillary Brennan enrolled in Medicare?
Yes. Hillary Brennan 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 Hillary Brennan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hillary Brennan reassigns Medicare benefits to 9 organizations: Ochsner Clinic LLC (New Orleans, LA), Sutter Valley Medical Foundation (Modesto, CA), Permanente Medical Group Inc (Stockton, CA), Green Anesthesia (Fairfield, CA), Amsurg Oakland Anesthesia LP (Oakland, CA) and 4 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 Hillary Brennan'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 Hillary Brennan was last updated on January 12, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Hillary Diane Brennan, CRNA · NPI 1417243577
Nurse Anesthetist, Certified Registered physician in New Orleans, Louisiana. Individual provider, active in the CMS NPPES registry since June 27, 2011.
## Identity
- **NPI:** 1417243577 (Entity type: Individual)
- **Enumerated:** June 27, 2011
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** AP06484 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 1514 JEFFERSON HWY, New Orleans, LA 70121-2429
- **Phone:** (504) 842-3755
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Ochsner Clinic LLC (NPI 1215136080, New Orleans, LA); Sutter Valley Medical Foundation (NPI 1346615150, Modesto, CA); Permanente Medical Group Inc (NPI 1548343510, Stockton, CA); Green Anesthesia (NPI 1457039331, Fairfield, CA); Amsurg Oakland Anesthesia LP (NPI 1679847727, Oakland, CA); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** January 12, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1417243577) · Data from the CMS NPPES public registry.