Scott A. Horowitz, MD

Medicare activity in 2024

Official CMS public-use data for Scott A. Horowitz, 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 nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)806 services
2. Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)536 services
3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)24 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)22 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%
• Diabetes66%
• Ischemic heart disease66%
• Arthritis57%
• Depression54%

Hospitals where Scott A. Horowitz works

Medicare's Facility Affiliation Data lists Scott A. Horowitz 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.

• St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330401

Practice locations

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

• 11919 Graham CtFlushing, NY 11354 (917) 678‑1097
• 50 Route 25aSmithtown, NY 11787 (631) 862‑3000

Group practices

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

• Southwest Suffolk Medical PC199 clinicians in the group

Specialties

• Hospitalistprimary
• Infectious Diseasealso
• Internal Medicinealso

Find other Hospitalist doctors in New York →

Other hospitalists in Flushing

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

• Jana C. Clough
• Jason Shah, DO
• David Zhuang, MD
• Akbar A. Khan, MD
• Ashley C. Chamberlain, DO
• Muhammad Ramzan, MD
• Sabai Phyu, MD
• Chandan Kher, MD

All hospitalists in Flushing →

Other clinicians in Southwest Suffolk Medical PC

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

• Kenneth Lau, MD
• Alain Berthold, MD
• Cathy C. Li, DO
• Imran Ismail
• Jiju Mathew, MD
• Janet Cevallos-Brennan, 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