MARY ELIZABETH O'DONNELL CAA
NPI 1609561273
Anesthesiologist Assistant in Austin, TX
About Mary Elizabeth O'donnell Caa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY ELIZABETH O'DONNELL CAA (NPI 1609561273) is an individual anesthesiologist assistant in Austin, Texas and active in the NPI registry since April 2023. She is affiliated with St David's Medical Center and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Group Practice 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
Mary Elizabeth O'donnell Caa 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 Mary O'donnell reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austin, TX 78759
- Reassigned Medicare billing, Texas enrollment
- 840 clinicians in this Medicare group
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 2,832 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 2
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St David's Medical Center
Acute Care Hospitals · Austin, TXSt David's South Austin Medical Center
Acute Care Hospitals · Austin, TXRound Rock Medical Center
Acute Care Hospitals · Round Rock, TXNorth Austin Medical Center
Acute Care Hospitals · Austin, TXOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Mary O'donnell's NPI number?
The NPI number for Mary O'donnell is 1609561273. It was assigned to this individual provider in the NPPES registry on April 10, 2023.
Where is Mary O'donnell located?
Mary O'donnell practices at 919 E 32nd St, Austin, TX 78705. The listed phone number is (512) 544-7111.
What is Mary O'donnell's specialty?
The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.
Is Mary O'donnell enrolled in Medicare?
Yes. Mary O'donnell 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 Mary O'donnell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary O'donnell reassigns Medicare benefits to 2 organizations: Austin Anesthesiology Group, PLLC (Austin, TX) and University Of Wisconsin Medical Foundation, Inc (Middleton, WI). 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 Mary O'donnell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary O'donnell accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Texas, Group Health Cooperative-SCW and Sendero Health Plans, Local Nonprofit list Mary O'donnell 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 Mary O'donnell affiliated with any hospitals?
According to CMS data, Mary O'donnell is affiliated with St David's Medical Center, St David's South Austin Medical Center, Round Rock Medical Center and North Austin Medical Center.
When was this NPI record last updated?
The NPPES record for Mary O'donnell was last updated on April 10, 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.
# Mary Elizabeth O'donnell, CAA · NPI 1609561273
Anesthesiologist Assistant physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since April 10, 2023.
## Identity
- **NPI:** 1609561273 (Entity type: Individual)
- **Enumerated:** April 10, 2023
- **Primary specialty:** Anesthesiologist Assistant · taxonomy 367H00000X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 919 E 32ND ST, Austin, TX 78705-2703
- **Phone:** (512) 544-7111
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Austin Anesthesiology Group, PLLC (NPI 1598724304, Austin, TX); University Of Wisconsin Medical Foundation, Inc (NPI 1598784555, Middleton, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** April 10, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1609561273) · Data from the CMS NPPES public registry.