Ziad Kronfol, MD

Medicare activity in 2024

Official CMS public-use data for Ziad Kronfol, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)104 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)64 services
3. Diagnostic exam of anus using an endoscope (46600)63 services
4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)63 services
5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)61 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%
• Arthritis52%
• Ischemic heart disease37%
• Diabetes32%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)32%

Hospitals where Ziad Kronfol works

Medicare's Facility Affiliation Data lists Ziad Kronfol 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.

• Nyack HospitalNyack, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330104

Practice locations

Addresses where Ziad Kronfol is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Crosfield Ave, Suite 105West Nyack, NY 10994 (845) 535‑3362

Group practices

Medicare enrollment lists Ziad Kronfol as a member of this group (CMS data updated October 2, 2026).

• White Plains Medical Diagnostic Services, PC93 clinicians in the group

Specialties

• Colorectal Surgery (Proctology)primary
• General Surgeryalso

Find other Colorectal Surgery (Proctology) doctors in New York →

Other colorectal surgeons in New York

Clinicians with the same Medicare primary specialty in New York — not a recommendation.

• Alexander Bulanov, DO
• David E. Rivadeneira, MD
• Alexis Grucela, MD
• David M. Schwartzberg, MD
• Brian P. Teng, MD
• Brian T. Valerian, MD
• Martin R. Weiser, MD
• Kathryn Wells, DO

All colorectal surgeons in New York →

Other clinicians in White Plains Medical Diagnostic Services, PC

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

• Irina Rybalova, MD
• John V. Bartolotta, MD
• Ann P. Baby, MD
• Joseph Buchsbaum, MD
• Eric Tatar, MD
• Laurence C. Miller, 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. 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