Lester Y. Leung, MD

Medicare activity in 2024

Official CMS public-use data for Lester Y. Leung, 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 50 minutes (99233)59 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)34 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)27 services
4. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)26 services
5. Critical care, first 30-74 minutes (99291)13 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%
• Stroke or mini-stroke75%
• Ischemic heart disease55%
• Diabetes49%
• Arthritis48%

Hospitals where Lester Y. Leung works

Medicare's Facility Affiliation Data lists Lester Y. Leung 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.

• Melrosewakefield HealthcareMelrose, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220070
• Tufts Medical CenterBoston, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220116

Practice locations

Addresses where Lester Y. Leung is enrolled with Medicare (CMS data updated October 2, 2026).

• 800 Washington StBoston, MA 02111 (617) 636‑5000

Group practices

Medicare enrollment lists Lester Y. Leung as a member of this group (CMS data updated October 2, 2026).

• Pratt Neurology Associates Inc34 clinicians in the group

Specialties

• Neurologyprimary

Find other Neurology doctors in Massachusetts →

Other neurologists in Boston

Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.

• Wai-Ying W. Yau, MD
• Arnold Sansevere, MD
• Aaron B. Bowen, MD
• Kelly A. Boylan, MD
• Alexander Rotenberg, MD
• Jennifer Morganroth
• Tatiana K. Filina, MD
• Ali Daneshmand, MD

All neurologists in Boston →

Other clinicians in Pratt Neurology Associates Inc

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

• Fares Nigim, MD
• Michael R. Stanley, MD
• Bryan K. Ho, MD
• David Thaler, MD
• Danielle M. Howard, MD
• Zahra Ayub, 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