Karl W. Diener, MD

Hospitals where Karl W. Diener works

Medicare's Facility Affiliation Data lists Karl W. Diener at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Adirondack Medical Center - Saranac LakeSaranac Lake, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330079
• Our Lady of Lourdes Memorial Hospital, IncBinghamton, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330011
• Saratoga HospitalSaratoga Springs, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330222
• St Mary's HealthcareAmsterdam, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330047
• Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330393

Practice locations

Addresses where Karl W. Diener is enrolled with Medicare (CMS data updated October 2, 2026).

• 18 Bayles AveStony Brook, NY 11790 (518) 650‑7503

Group practices

Medicare enrollment lists Karl W. Diener as a member of this group (CMS data updated October 2, 2026).

• Millennium Medical Imaging PC37 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in New York →

Other radiologists in Stony Brook

Clinicians with the same Medicare primary specialty in Stony Brook, NY — not a recommendation.

• Mohammed Abdeen, MD
• Deven Kulkarni, MD
• Sergey Kochkine, MD
• Vishal K. Patel, MD
• Seth O. Mankes, MD
• Eric T. Wei, MD
• Divya Awal, MD
• Feiyu Xue, MD

All radiologists in Stony Brook →

Other clinicians in Millennium Medical Imaging PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Darren P. Fitzpatrick, MD
• Michael B. Whiteside, MD
• Richard A. Levy, MD
• Damon J. Deteso, MD
• Timothy Shepard, MD
• Barry Goldberg, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
5. Medicare Care Compare — official Medicare tool to look up clinicians