CAROLYN O'LEARY
NPI 1427400894
Nurse Anesthetist, Certified Registered in Pittsburgh, PA
About Carolyn O'leary NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAROLYN O'LEARY (NPI 1427400894) is an individual nurse anesthetist, certified registered in Pittsburgh, Pennsylvania, licensed in Pennsylvania (RN550542) and active in the NPI registry since July 2016. She is affiliated with Upmc St Margaret and is a graduate of Other (2016).
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
Carolyn O'leary 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
4Medicare enrollment records show Carolyn O'leary reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pittsburgh, PA 15224
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,881 clinicians in this Medicare group
Pittsburgh, PA 15224
- Reassigned Medicare billing, Pennsylvania enrollment
- 7,114 clinicians in this Medicare group
Youngstown, OH 44505
- Reassigned Medicare billing, Pennsylvania enrollment
- 30 clinicians in this Medicare group
Punxsutawney, PA 15767
- Reassigned Medicare billing, Pennsylvania enrollment
- 75 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Upmc St Margaret
Acute Care Hospitals · Pittsburgh, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 15224 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
PITTSBURGH, PA 15224
PITTSBURGH, PA 15224
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 Carolyn O'leary's NPI number?
The NPI number for Carolyn O'leary is 1427400894. It was assigned to this individual provider in the NPPES registry on July 8, 2016.
Where is Carolyn O'leary located?
Carolyn O'leary practices at 4800 Friendship Ave, Pittsburgh, PA 15224. The listed phone number is (412) 578-5323.
What is Carolyn O'leary's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Carolyn O'leary enrolled in Medicare?
Yes. Carolyn 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 Carolyn O'leary's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carolyn O'leary reassigns Medicare benefits to 4 organizations: Allegheny Clinic (Pittsburgh, PA), University Of Pittsburgh Physicians (Pittsburgh, PA), C S Anesthesia LLC (Youngstown, OH) and Punxsutawney Medical Services, Inc (Punxsutawney, PA). 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 Carolyn O'leary's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Carolyn O'leary affiliated with any hospitals?
According to CMS data, Carolyn O'leary is affiliated with Upmc St Margaret.
When was this NPI record last updated?
The NPPES record for Carolyn O'leary was last updated on October 8, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Carolyn O'leary · NPI 1427400894
Nurse Anesthetist, Certified Registered physician in Pittsburgh, Pennsylvania. Individual provider, active in the CMS NPPES registry since July 8, 2016.
## Identity
- **NPI:** 1427400894 (Entity type: Individual)
- **Enumerated:** July 8, 2016
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** RN550542 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 4800 FRIENDSHIP AVE, Pittsburgh, PA 15224-1722
- **Phone:** (412) 578-5323
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Allegheny Clinic (NPI 1457667099, Pittsburgh, PA); University Of Pittsburgh Physicians (NPI 1225096639, Pittsburgh, PA); C S Anesthesia LLC (NPI 1912923343, Youngstown, OH); Punxsutawney Medical Services, Inc (NPI 1255849683, Punxsutawney, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** October 8, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1427400894) · Data from the CMS NPPES public registry.