Karoly A. Vollmer, DO

Medicare activity in 2024

Official CMS public-use data for Karoly A. Vollmer, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Emergency department visit with high level of medical decision making (99285)483 services
2. Emergency department visit with moderate level of medical decision making (99284)147 services
3. Critical care, first 30-74 minutes (99291)41 services
4. Emergency department visit with low level of medical decision making (99283)19 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis66%
• Ischemic heart disease55%
• Diabetes47%
• Anxiety41%

Hospitals where Karoly A. Vollmer works

Medicare's Facility Affiliation Data lists Karoly A. Vollmer 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.

• North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106
• Peconic Bay Medical CenterRiverhead, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330107
• Plainview HospitalPlainview, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330331

Practice locations

Addresses where Karoly A. Vollmer is enrolled with Medicare (CMS data updated October 2, 2026).

• 101 Saint Andrews LnGlen Cove, NY 11542 (516) 674‑7591

Group practices

Medicare enrollment lists Karoly A. Vollmer as a member of this group (CMS data updated October 2, 2026).

• North Shore-Lij Medical PC6,440 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in New York →

Other emergency medicine doctors in Glen Cove

Clinicians with the same Medicare primary specialty in Glen Cove, NY — not a recommendation.

• Zachary D. Levy, MD
• Iosif Davidov, MD
• Tracy Rendano, MD
• Mityanand Ramnarine, MD
• Steven Morrin, MD
• Lukas J. Shutler, MD
• Antonio Napolitano, MD
• Philipp J. Underwood, MD

All emergency medicine doctors in Glen Cove →

Other clinicians in North Shore-Lij Medical PC

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

• Cristina M. Bakos, PA
• Julia R. Schneider, DO
• Mohsin Ali, MD
• Shivani S. Dave, MD
• Tapan Buch, MD
• Christina M. Gambino

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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians