Allison M. Izsak, MD

Hospitals where Allison M. Izsak works

Medicare's Facility Affiliation Data lists Allison M. Izsak 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.

• The University HospitalNewark, NJ · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 310119

Practice locations

Addresses where Allison M. Izsak is enrolled with Medicare (CMS data updated October 2, 2026).

• 140 Bergen StNewark, NJ 07103 (973) 972‑9000
• 90 Bergen StNewark, NJ 07103 (973) 972‑5004

Group practices

Medicare enrollment lists Allison M. Izsak as a member of this group (CMS data updated October 2, 2026).

• University Physician Associates of New Jersey Inc378 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Newark

Clinicians with the same Medicare primary specialty in Newark, NJ — not a recommendation.

• Vivek Narasimhan, MD
• Arthur Badillo, MD
• Nitasa Sahu, MD
• Natalie Sous, MD
• Oleg Frank, MD
• Adel Y. Armanious, MD
• Jeffin P. Mathew, DO
• Emily A. Gordon, MD

All internal medicine doctors in Newark →

Other clinicians in University Physician Associates of New Jersey Inc

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

• Pariket Dubal, DO
• Jonathan Mamber Czeresnia, MD
• Michael M. Vosbikian, MD
• Aislinn D. Black, DO
• Howard A. Greller, MD
• Christopher D. Graham, 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