DR. EDWARD T O'LEARY M.D.
NPI 1285977082
Internal Medicine - Clinical Cardiac Electrophysiology in Boston, MA
About Dr. Edward T O'leary M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. EDWARD T O'LEARY M.D. (NPI 1285977082) is an individual clinical cardiac electrophysiology provider in Boston, Massachusetts, licensed in Massachusetts (265916) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and maintains a secondary practice location in Scarborough.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Dr. Edward T 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
5Medicare enrollment records show Edward O'leary reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 220 clinicians in this Medicare group
Weymouth, MA 02190
- Reassigned Medicare billing, Massachusetts enrollment
- 671 clinicians in this Medicare group
York, ME 03909
- Reassigned Medicare billing, Maine enrollment
- 347 clinicians in this Medicare group
Biddeford, ME 04005
- Reassigned Medicare billing, Maine enrollment
- 3,140 clinicians in this Medicare group
Scarborough, ME 04074
- Reassigned Medicare billing, Maine enrollment
- 229 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maine Medical Center
Acute Care Hospitals · Portland, MEBoston Children's Hospital
Childrens · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Edward O'leary's NPI number?
The NPI number for Edward O'leary is 1285977082. It was assigned to this individual provider in the NPPES registry on March 29, 2013.
Where is Edward O'leary located?
Edward O'leary practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.
What is Edward O'leary's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.
Is Edward O'leary enrolled in Medicare?
Yes. Edward 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 Edward O'leary's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Edward O'leary reassigns Medicare benefits to 5 organizations: Boston Childrens Heart Foundation Inc (Boston, MA), Coastal Medical Associates (Weymouth, MA), York Hospital (York, ME), Mainehealth (Biddeford, ME) and Maine Medical Partners (Scarborough, ME). 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 Edward O'leary's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Edward O'leary accept?
Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Edward 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 Edward O'leary affiliated with any hospitals?
According to CMS data, Edward O'leary is affiliated with Maine Medical Center and Boston Children's Hospital.
When was this NPI record last updated?
The NPPES record for Edward O'leary was last updated on February 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Edward T O'leary, M.D. · NPI 1285977082
Clinical Cardiac Electrophysiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 29, 2013.
## Identity
- **NPI:** 1285977082 (Entity type: Individual)
- **Enumerated:** March 29, 2013
- **Primary specialty:** Internal Medicine - Clinical Cardiac Electrophysiology · taxonomy 207RC0001X
- **State license:** 265916 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5724
- **Phone:** (617) 355-6000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Boston Childrens Heart Foundation Inc (NPI 1982680922, Boston, MA); Coastal Medical Associates (NPI 1932175684, Weymouth, MA); York Hospital (NPI 1376528398, York, ME); Mainehealth (NPI 1215417019, Biddeford, ME); Maine Medical Partners (NPI 1386937175, Scarborough, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Virginia School Of Medicine, class of 2013
## Record status
- **NPPES last updated:** February 8, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1285977082) · Data from the CMS NPPES public registry.