Lewis W. Marshall, MD

Medicare activity in 2024

Official CMS public-use data for Lewis W. Marshall, 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 low level od decision making, if using time, 20 minutes or more (99213)76 services
2. Telephone medical discussion with physician, 21-30 minutes (99443)61 services
3. Insertion of needle into vein for collection of blood sample (36415)38 services
4. Telephone medical discussion with physician, 11-20 minutes (99442)38 services
5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)33 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 pressure71%
• High cholesterol64%
• Arthritis35%
• Diabetes27%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)22%

Hospitals where Lewis W. Marshall works

Medicare's Facility Affiliation Data lists Lewis W. Marshall 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.

• New York-Presbyterian/QueensFlushing, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330055

Practice locations

Addresses where Lewis W. Marshall is enrolled with Medicare (CMS data updated October 2, 2026).

• 234 E 149 StBronx, NY 10451 (718) 579‑6101
• 2601 Ocean PkwyBrooklyn, NY 11235 (718) 616‑5356
• 8931 161st StJamaica, NY 11432 (718) 291‑6161

Group practices

Medicare enrollment lists Lewis W. Marshall as a member of this group (CMS data updated October 2, 2026).

• Physician Affiliate Group of New York PC1,225 clinicians in the group

Specialties

• Internal Medicineprimary
• Emergency Medicinealso

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Bronx

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

• Jeffrey M. Weiss, MD
• Amit R. Patel, MD
• Sheira L. Schlair, MD
• Carmen Flores Flores, MD
• Cynthia P. Sudar Singh, MD
• Rahee M. Nerurkar, MD
• Jonathan S. Harris, MD
• Ryan Joseph M. Buzon, MD

All internal medicine doctors in Bronx →

Other clinicians in Physician Affiliate Group of New York PC

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

• Hillary R. Duenas, MD
• Antoine Beayno, MD
• Donna Bracken, MD
• Molly Piccione, DO
• Kevin Leung, DO
• Tasnim I. Reyes, PA

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