Quick answers
- Which hospitals does John Denning work at?
- Medicare's official clinician data lists John Denning at 5 hospitals: Jefferson County Health Center, Southeast Iowa Regional Medical Center, St Lukes Hospital, University of Iowa Health Care Medical Center Down… and University of Iowa Hospital & Clinics. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Denning see patients?
- Medicare's clinician data lists 8 practice locations, including New York, NY and Brooklyn, NY. Call before your visit to confirm the address.
- What is John Denning's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does John Denning accept Medicare assignment?
- Yes. Medicare's clinician data says John Denning 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 Denning?
- (212) 263-9700, as listed in official Medicare / NPI Registry data.
- What is John Denning's NPI number?
- 1518584614. 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 Denning works
Medicare's Facility Affiliation Data lists John Denning at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Jefferson County Health CenterFairfield, IA · Critical Access Hospital · CCN 161364
- Southeast Iowa Regional Medical CenterWest Burlington, IA · Acute Care Hospital · CCN 160057
- St Lukes HospitalCedar Rapids, IA · Acute Care Hospital · CCN 160045
- University of Iowa Health Care Medical Center Down…Iowa City, IA · Acute Care Hospital · CCN 160029
- University of Iowa Hospital & ClinicsIowa City, IA · Acute Care Hospital · CCN 160058
Practice locations
Addresses where John Denning is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 111 BroadwayNew York, NY 10006 (212) 263‑9700
- 150 E 32nd StNew York, NY 10016 (212) 263‑3049
- 153 Bay 26th StBrooklyn, NY 11214 (718) 630‑7000
- 159 E 53rd StNew York, NY 10022 (646) 754‑3300
- 333 E 38th StNew York, NY 10016 (646) 356‑9400
Group practices
Medicare enrollment lists John Denning as a member of this group (CMS data updated 2026-10-02).
- New York University6,134 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518584614 |
| 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