Quick answers
- Which hospitals does Lars D. Thompson work at?
- Medicare's official clinician data lists Lars D. Thompson at 5 hospitals: Canton-Potsdam Hospital, Carthage Area Hospital, Inc, Gouverneur Hospital, River Hospital Clinics and SLHS Massena, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lars D. Thompson see patients?
- Medicare's clinician data lists 3 practice locations, including Ogdensburg, NY and Canton, NY. Call before your visit to confirm the address.
- What is Lars D. Thompson's specialty?
- Medicare lists Urology as the primary specialty.
- Does Lars D. Thompson accept Medicare assignment?
- Yes. Medicare's clinician data says Lars D. Thompson 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 Lars D. Thompson offer telehealth?
- Medicare's clinician data says Lars D. Thompson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Lars D. Thompson?
- (315) 393-3600, as listed in official Medicare / NPI Registry data.
- What is Lars D. Thompson's NPI number?
- 1063511772. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lars D. Thompson works
Medicare's Facility Affiliation Data lists Lars D. Thompson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Canton-Potsdam HospitalPotsdam, NY · Acute Care Hospital · CCN 330197
- Carthage Area Hospital, IncOgdensburg, NY · Critical Access Hospital · CCN 331324
- Gouverneur HospitalGouverneur, NY · Critical Access Hospital · CCN 331315
- River Hospital ClinicsAlexandria Bay, NY · Critical Access Hospital · CCN 331309
- SLHS Massena, IncMassena, NY · Critical Access Hospital · CCN 331322
Practice locations
Addresses where Lars D. Thompson is enrolled with Medicare (CMS data updated 2026-10-02).
- 214 King StOgdensburg, NY 13669 (315) 393‑3600
- 214 King St, Suite AOgdensburg, NY 13669 (315) 393‑3600
- 80 E Main StCanton, NY 13617 (315) 714‑2559
Group practices
Medicare enrollment lists Lars D. Thompson as a member of these groups (CMS data updated 2026-10-02).
- Carthage Area Hospital Inc119 clinicians in the group
- Claxton-Hepburn Medical Center76 clinicians in the group
- Associated Medical Professionals of NY PLLC60 clinicians in the group
Specialties
- Urologyprimary
Other urologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1063511772 |
| 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