Alexandra Gewirtz, MD

Medicare activity in 2024

Official CMS public-use data for Alexandra Gewirtz, 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)38 services
2. Insertion of needle into vein for collection of blood sample (36415)18 services
3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)18 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)15 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%
• Arthritis64%
• High blood pressure62%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)62%
• Stroke or mini-stroke38%
• Ischemic heart disease36%

Hospitals where Alexandra Gewirtz works

Medicare's Facility Affiliation Data lists Alexandra Gewirtz 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.

• NYU Langone HospitalsNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330214

Practice locations

Addresses where Alexandra Gewirtz is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

• 111 BroadwayNew York, NY 10006 (212) 263‑9700
• 13303 Jamaica AveJamaica, NY 11418 (718) 206‑6923
• 297 Mineola BlvdMineola, NY 11501 (516) 294‑1377
• 530 1st AveNew York, NY 10016 (212) 263‑7300
• 550 1st AveNew York, NY 10016 (212) 263‑7300

Group practices

Medicare enrollment lists Alexandra Gewirtz as a member of this group (CMS data updated October 2, 2026).

• New York University6,134 clinicians in the group

Specialties

• Neurologyprimary

Find other Neurology doctors in New York →

Other neurologists in New York

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

• Lauren B. Krupp, MD
• Igor T. Gavrilovic, MD
• Marshall Keilson, MD
• Arielle Matalon, MD
• Fernanda Carvalho Poyraz
• Christine M. Fitzpatrick, MD
• Kara Shetler, MD
• Inna Kleyman, MD

All neurologists in New York →

Other clinicians in New York University

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

• Lauren B. Krupp, MD
• Katherine M. Jahnes, MD
• Albert Jung, MD
• Chaim Y. Ross, MD
• Veronika Gazyants, NP
• Kimberly E. Dore

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