Quick answers
- Which hospitals does John W. Powell work at?
- Medicare's official clinician data lists John W. Powell at 2 hospitals: Arnot Ogden Medical Center and Cayuga Medical Center at Ithaca. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John W. Powell see patients?
- Medicare's clinician data lists 1 practice location in Ithaca, NY. Call before your visit to confirm the address.
- What is John W. Powell's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does John W. Powell accept Medicare assignment?
- Yes. Medicare's clinician data says John W. Powell 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 W. Powell offer telehealth?
- Medicare's clinician data says John W. Powell offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John W. Powell?
- (607) 274-4443, as listed in official Medicare / NPI Registry data.
- What is John W. Powell's NPI number?
- 1851557615. 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 W. Powell works
Medicare's Facility Affiliation Data lists John W. Powell at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Arnot Ogden Medical CenterElmira, NY · Acute Care Hospital · CCN 330090
- Cayuga Medical Center at IthacaIthaca, NY · Acute Care Hospital · CCN 330307
Practice locations
Addresses where John W. Powell is enrolled with Medicare (CMS data updated 2026-10-02).
- 101 Dates DrIthaca, NY 14850 (607) 274‑4443
Group practices
Medicare enrollment lists John W. Powell as a member of this group (CMS data updated 2026-10-02).
- Cayuga Medical Center at Ithaca31 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of Ny Upstate Medical University |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1851557615 |
| 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