Quick answers
- Does Edward T. O'Leary accept Medicare assignment?
- Yes. Medicare's clinician data says Edward T. O'Leary accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Edward T. O'Leary see?
- In 2024, CMS data shows 54 Original Medicare patients and 96 services for Edward T. O'Leary. This counts Original Medicare only and measures volume, not quality.
- What is Edward T. O'Leary's NPI number?
- 1285977082. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Edward T. O'Leary, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 54 |
|---|---|
| Services billed to Medicare | 96 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 41 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)52 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- Heart failure59%
- High blood pressure44%
- Anxiety44%
- Depression33%
- Atrial fibrillation31%
- High cholesterol24%
Hospitals where Edward T. O'Leary works
Medicare's Facility Affiliation Data lists Edward T. O'Leary at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Boston Children's HospitalBoston, MA · Children's Hospital · Emergency services: listed by Medicare · CCN 223302
- MaineHealth Maine Medical CenterPortland, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200009
Practice locations
Addresses where Edward T. O'Leary is enrolled with Medicare (CMS data updated October 2, 2026).
- 22 Bramhall StPortland, ME 04102
- 300 Longwood AveBoston, MA 02115 (617) 355‑6000
- 71 US Route 1, Suite CScarborough, ME 04074 (207) 883‑5532
Group practices
Medicare enrollment lists Edward T. O'Leary as a member of these groups (CMS data updated October 2, 2026).
- MaineHealth2,633 clinicians in the group
- Boston Childrens Heart Foundation Inc100 clinicians in the group
Specialties
- Pediatric Medicineprimary
Other pediatricians in Portland
Clinicians with the same Medicare primary specialty in Portland, ME — not a recommendation.
Other clinicians in MaineHealth
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Virginia School Of Medicine |
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1285977082 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians