Quick answers
- Which hospitals does John Leso work at?
- Medicare's official clinician data lists John Leso at 1 hospital: Boston Medical Center-Brighton. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Leso see patients?
- Medicare's clinician data lists 2 practice locations, including Brockton, MA and Brighton, MA. Call before your visit to confirm the address.
- What is John Leso's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does John Leso accept Medicare assignment?
- Yes. Medicare's clinician data says John Leso accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for John Leso?
- (508) 427-3000, as listed in official Medicare / NPI Registry data.
- What is John Leso's NPI number?
- 1972063006. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Leso works
Medicare's Facility Affiliation Data lists John Leso at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Boston Medical Center-BrightonBrighton, MA · Acute Care Hospital · CCN 220036
Practice locations
Addresses where John Leso is enrolled with Medicare (CMS data updated 2026-10-02).
- 235 N Pearl StBrockton, MA 02301 (508) 427‑3000
- 736 Cambridge StBrighton, MA 02135 (617) 789‑3000
Group practices
Medicare enrollment lists John Leso as a member of this group (CMS data updated 2026-10-02).
- BMC Affiliated Physicians, Inc.564 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Massachusetts →
Other cardiologists in Brockton
Clinicians with the same Medicare primary specialty in Brockton, MA — not a recommendation.
Clinician information
| Graduation year | 2019 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972063006 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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