Quick answers
- Which hospitals does John L. Genier work at?
- Medicare's official clinician data lists John L. Genier at 4 hospitals: F F Thompson Hospital, Highland Hospital, Rochester General Hospital and Strong Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John L. Genier see patients?
- Medicare's clinician data lists 1 practice location in Rochester, NY. Call before your visit to confirm the address.
- What is John L. Genier's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John L. Genier accept Medicare assignment?
- Yes. Medicare's clinician data says John L. Genier 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 L. Genier offer telehealth?
- Medicare's clinician data says John L. Genier offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John L. Genier?
- (585) 292-6440, as listed in official Medicare / NPI Registry data.
- What is John L. Genier's NPI number?
- 1811931900. 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 L. Genier works
Medicare's Facility Affiliation Data lists John L. Genier at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- F F Thompson HospitalCanandaigua, NY · Acute Care Hospital · CCN 330074
- Highland HospitalRochester, NY · Acute Care Hospital · CCN 330164
- Rochester General HospitalRochester, NY · Acute Care Hospital · CCN 330125
- Strong Memorial HospitalRochester, NY · Acute Care Hospital · CCN 330285
Practice locations
Addresses where John L. Genier is enrolled with Medicare (CMS data updated 2026-10-02).
- 945 E Henrietta Rd, Suite B1Rochester, NY 14623 (585) 292‑6440
Group practices
Medicare enrollment lists John L. Genier as a member of this group (CMS data updated 2026-10-02).
- Strong Medical Group48 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Rochester
Clinicians with the same Medicare primary specialty in Rochester, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1811931900 |
| 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