MARY ROSE O'LEARY CRNA
NPI 1235698929
Nurse Anesthetist, Certified Registered in Oakland, CA
About Mary Rose O'leary Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY ROSE O'LEARY CRNA (NPI 1235698929) is an individual nurse anesthetist, certified registered in Oakland, California, licensed in California (95001057) and active in the NPI registry since March 2019. She is a graduate of Other (2018).
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
Mary Rose O'leary 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
3Medicare enrollment records show Mary O'leary reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Richmond, CA 94801
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Castro Valley, CA 94546
- Reassigned Medicare billing, California enrollment
- 45 clinicians in this Medicare group
Encinitas, CA 92024
- Reassigned Medicare billing, California enrollment
- 242 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94611 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.
OAKLAND, CA 94611
OAKLAND, CA 94611
OAKLAND, CA 94611
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'leary's NPI number?
The NPI number for Mary O'leary is 1235698929. It was assigned to this individual provider in the NPPES registry on March 13, 2019.
Where is Mary O'leary located?
Mary O'leary practices at 3600 Broadway, Oakland, CA 94611. The listed phone number is (510) 752-1000.
What is Mary O'leary's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Mary O'leary enrolled in Medicare?
Yes. Mary O'leary 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'leary's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary O'leary reassigns Medicare benefits to 3 organizations: Permanente Medical Group Inc (Richmond, CA), Sedaze Anesthesia Consultants A Professional Nursing Corporation (Castro Valley, CA) and Genesis Healthcare Partners PC (Encinitas, 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 Mary O'leary'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 Mary O'leary was last updated on October 20, 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 Rose O'leary, CRNA · NPI 1235698929
Nurse Anesthetist, Certified Registered physician in Oakland, California. Individual provider, active in the CMS NPPES registry since March 13, 2019.
## Identity
- **NPI:** 1235698929 (Entity type: Individual)
- **Enumerated:** March 13, 2019
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 95001057 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3600 BROADWAY, Oakland, CA 94611-5730
- **Phone:** (510) 752-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Permanente Medical Group Inc (NPI 1235226531, Richmond, CA); Sedaze Anesthesia Consultants A Professional Nursing Corporation (NPI 1366209629, Castro Valley, CA); Genesis Healthcare Partners PC (NPI 1548567498, Encinitas, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** October 20, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1235698929) · Data from the CMS NPPES public registry.