Quick answers
- Which hospitals does John R. Lesser work at?
- Medicare's official clinician data lists John R. Lesser at 5 hospitals: Abbott Northwestern Hospital, Allina Health Faribault Medical Center, Cambridge Medical Center, New Ulm Medical Center and Welia Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John R. Lesser see patients?
- Medicare's clinician data lists 4 practice locations, including Northfield, MN, Waconia, MN and Le Sueur, MN. Call before your visit to confirm the address.
- What is John R. Lesser's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does John R. Lesser accept Medicare assignment?
- Yes. Medicare's clinician data says John R. Lesser 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.
- Does John R. Lesser offer telehealth?
- Medicare's clinician data says John R. Lesser offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John R. Lesser?
- (507) 663-9000, as listed in official Medicare / NPI Registry data.
- What is John R. Lesser's NPI number?
- 1265492862. 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 R. Lesser works
Medicare's Facility Affiliation Data lists John R. Lesser at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Abbott Northwestern HospitalMinneapolis, MN · Acute Care Hospital · CCN 240057
- Allina Health Faribault Medical CenterFaribault, MN · Acute Care Hospital · CCN 240071
- Cambridge Medical CenterCambridge, MN · Acute Care Hospital · CCN 240020
- New Ulm Medical CenterNew Ulm, MN · Critical Access Hospital · CCN 241378
- Welia HealthMora, MN · Critical Access Hospital · CCN 241367
Practice locations
Addresses where John R. Lesser is enrolled with Medicare (CMS data updated 2026-10-02).
- 1400 Jefferson RdNorthfield, MN 55057 (507) 663‑9000
- 500 S Maple StWaconia, MN 55387 (952) 442‑7843
- 621 S 4th StLe Sueur, MN 56058 (507) 665‑3375
- 855 Mankato AveWinona, MN 55987 (507) 454‑3650
Group practices
Medicare enrollment lists John R. Lesser as a member of these groups (CMS data updated 2026-10-02).
- Allina Health System3,842 clinicians in the group
- Winona Health Services169 clinicians in the group
- Minneapolis Heart Institute at Ridgeview Heart Center, LLC54 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Minnesota →
Other cardiologists in Northfield
Clinicians with the same Medicare primary specialty in Northfield, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Florida College Of Medicine |
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1265492862 |
| 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