Karen F. Schwartz, MD

Medicare activity in 2024

Official CMS public-use data for Karen F. Schwartz, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,654 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)998 services
3. Ultrasound scan of head and neck soft tissue (76536)856 services
4. Principal care management services for a single high-risk disease, first 30 minutes provided personally by qualified health care professional, per calendar month. (99424)536 services
5. Face-to-face behavioral counseling for obesity, 15 minutes (G0447)441 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 cholesterol75%
• High blood pressure67%
• Arthritis53%
• Diabetes45%
• Osteoporosis34%
• Ischemic heart disease31%

Hospitals where Karen F. Schwartz works

Medicare's Facility Affiliation Data lists Karen F. Schwartz 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.

• Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330286
• North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106
• St Francis Hospital - The Heart CenterRoslyn, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330182
• 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 Karen F. Schwartz is enrolled with Medicare (CMS data updated October 2, 2026).

• 165 Froehlich Farm BlvdWoodbury, NY 11797 (516) 364‑7405

Specialties

• Endocrinologyprimary
• Internal Medicinealso

Find other Endocrinology doctors in New York →

Other endocrinologists in New York

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

• Trisha B. Newaz, DO
• Yi Liu, MD
• Emily J. Gallagher, MD
• Howard A. Lippes, MD
• Yujin Lim, MD
• Gary D. Rothberger, MD
• Ilana Bass, MD
• Alon Y. Mazori, MD

All endocrinologists in New York →

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