Quick answers
- Which hospitals does John T. Hamm work at?
- Medicare's official clinician data lists John T. Hamm at 2 hospitals: Norton Clark Hospital and Norton Hospitals, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John T. Hamm see patients?
- Medicare's clinician data lists 1 practice location in Louisville, KY. Call before your visit to confirm the address.
- What is John T. Hamm's specialty?
- Medicare lists Medical Oncology as the primary specialty.
- Does John T. Hamm accept Medicare assignment?
- Yes. Medicare's clinician data says John T. Hamm 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 T. Hamm?
- (502) 272-5165, as listed in official Medicare / NPI Registry data.
- What is John T. Hamm's NPI number?
- 1023075660. 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 T. Hamm works
Medicare's Facility Affiliation Data lists John T. Hamm at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Norton Clark HospitalJeffersonville, IN · Acute Care Hospital · CCN 150009
- Norton Hospitals, IncLouisville, KY · Acute Care Hospital · CCN 180088
Practice locations
Addresses where John T. Hamm is enrolled with Medicare (CMS data updated 2026-10-02).
- 315 E Broadway, Fl 4Louisville, KY 40202 (502) 272‑5165
Group practices
Medicare enrollment lists John T. Hamm as a member of this group (CMS data updated 2026-10-02).
- Norton Hospitals, Inc137 clinicians in the group
Specialties
- Medical Oncologyprimary
Other oncologists in Louisville
Clinicians with the same Medicare primary specialty in Louisville, KY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Vanderbilt University School Of Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023075660 |
| 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