Yan Yan S. Xie, MD

Medicare activity in 2024

Official CMS public-use data for Yan Yan S. Xie, 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. Injection, denosumab, 1 mg (J0897)4,500 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)296 services
3. 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)171 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)119 services
5. Hemoglobin a1c level (83036)105 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%
• Diabetes72%
• Arthritis49%
• Ischemic heart disease46%
• Chronic kidney disease44%

Hospitals where Yan Yan S. Xie works

Medicare's Facility Affiliation Data lists Yan Yan S. Xie 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.

• Long Island Jewish Medical CenterNew Hyde Park, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330195
• North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106

Practice locations

Addresses where Yan Yan S. Xie is enrolled with Medicare (CMS data updated October 2, 2026).

• 865 Northern Boulevard, Suite 203Great Neck, NY 11021 (855) 364‑6257

Group practices

Medicare enrollment lists Yan Yan S. Xie as a member of this group (CMS data updated October 2, 2026).

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

Specialties

• Endocrinologyprimary
• Internal Medicinealso

Find other Endocrinology doctors in New York →

Other endocrinologists in Great Neck

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

• Adina E. Schneider, MD
• Yigal Aharon, MD
• Ailian Chen, MD
• Dana I. Rochester, MD
• Susan H. Wasserman, MD
• H D. Lieberman, MD
• Seth G. Friedman, MD
• Karishma Chopra, DO

All endocrinologists in Great Neck →

Other clinicians in North Shore-Lij Medical PC

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

• Sarah M. Landsman
• Kavitha D. Vijayasekar, MD
• David H. Robbins, MD
• Carolyn J. Oh, MD
• Sara J. Rajan, PA
• Sophia A. Specht, NP

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