PATRICK W O'LEARY M.D.
NPI 1881672632
Pediatrics - Pediatric Cardiology in Rochester, MN
About Patrick W O'leary M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PATRICK W O'LEARY M.D. (NPI 1881672632) is an individual pediatric cardiology provider in Rochester, Minnesota, licensed in Minnesota (33140) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Hospital Rochester, and is a graduate of University Of Wisconsin School Of Medicine (1986).
NPPES Registry Identity
Specialties & Licenses 2
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
Patrick W O'leary M.d. 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
13Medicare enrollment records show Patrick O'leary reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rochester, MN 55905
- Reassigned Medicare billing, Minnesota and Wisconsin enrollments
- Also billed through NPI 1922074434 (Wisconsin)
- 6,534 clinicians in this Medicare group
Lake City, MN 55041
- Reassigned Medicare billing, Minnesota enrollment
- 819 clinicians in this Medicare group
Red Wing, MN 55066
- Reassigned Medicare billing, Minnesota enrollment
- 1,571 clinicians in this Medicare group
Winona, MN 55987
- Reassigned Medicare billing, Minnesota enrollment
- 330 clinicians in this Medicare group
Mabel, MN 55954
- Reassigned Medicare billing, Minnesota and Iowa enrollments
- Also billed through NPI 1750042032 (Iowa)
- 108 clinicians in this Medicare group
Waseca, MN 56093
- Reassigned Medicare billing, Minnesota enrollment
- 1,572 clinicians in this Medicare group
La Crosse, WI 54601
- Reassigned Medicare billing, Minnesota and Wisconsin enrollments
- 330 clinicians in this Medicare group
Menomonie, WI 54751
- Reassigned Medicare billing, Minnesota and Wisconsin enrollments
- 251 clinicians in this Medicare group
Fairmont, MN 56031
- Reassigned Medicare billing, Minnesota enrollment
- 806 clinicians in this Medicare group
Saint James, MN 56081
- Reassigned Medicare billing, Minnesota enrollment
- 592 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mayo Clinic Hospital Rochester
Acute Care Hospitals · Rochester, MNOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCHESTER, MN 55905
ROCHESTER, MN 55905
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 Patrick O'leary's NPI number?
The NPI number for Patrick O'leary is 1881672632. It was assigned to this individual provider in the NPPES registry on January 3, 2006.
Where is Patrick O'leary located?
Patrick O'leary practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.
What is Patrick O'leary's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.
Is Patrick O'leary enrolled in Medicare?
Yes. Patrick 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 Patrick O'leary's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patrick O'leary reassigns Medicare benefits to 13 organizations: Mayo Clinic (Rochester, MN), Mayo Clinic Health System-Lake City (Lake City, MN), Mayo Clinic Health System-Southeast Minnesota Region (Red Wing, MN), Winona Health Services (Winona, MN), Winneshiek Medical Center (Mabel, MN) and 8 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 Patrick O'leary's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Patrick O'leary accept?
Health plans from Blue Cross Blue Shield of North Dakota, HealthPartners, Oscar Insurance Company, Sanford Health Plan and Wellmark Health Plan of Iowa, Inc. list Patrick O'leary 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 Patrick O'leary affiliated with any hospitals?
According to CMS data, Patrick O'leary is affiliated with Mayo Clinic Hospital Rochester.
When was this NPI record last updated?
The NPPES record for Patrick O'leary was last updated on August 19, 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.
# Patrick W O'leary, M.D. · NPI 1881672632
Pediatric Cardiology physician in Rochester, Minnesota. Individual provider, active in the CMS NPPES registry since January 3, 2006.
## Identity
- **NPI:** 1881672632 (Entity type: Individual)
- **Enumerated:** January 3, 2006
- **Primary specialty:** Pediatrics - Pediatric Cardiology · taxonomy 2080P0202X
- **State license:** 33140 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 1ST ST SW, Rochester, MN 55905-0001
- **Phone:** (507) 284-2511
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 13 organizations under Medicare reassignment (form CMS-855R): Mayo Clinic (NPI 1114343860, Rochester, MN); Mayo Clinic Health System-Lake City (NPI 1164463659, Lake City, MN); Mayo Clinic Health System-Southeast Minnesota Region (NPI 1114453883, Red Wing, MN); Winona Health Services (NPI 1295789352, Winona, MN); Winneshiek Medical Center (NPI 1093857393, Mabel, MN); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 1986
## Record status
- **NPPES last updated:** August 19, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1881672632) · Data from the CMS NPPES public registry.