Quick answers
- Does Alexandra Lewis accept Medicare assignment?
- Yes. Medicare's clinician data says Alexandra Lewis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Alexandra Lewis see?
- In 2024, CMS data shows 421 Original Medicare patients and 475 services for Alexandra Lewis. This counts Original Medicare only and measures volume, not quality.
- What is Alexandra Lewis's NPI number?
- 1861703332. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Alexandra Lewis, 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.
| Original Medicare patients | 421 |
|---|---|
| Services billed to Medicare | 475 |
| Different services or procedures | 57 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)65 services
- Anesthesia for x-ray or radiation therapy (01922)28 services
- Anesthesia for other procedure on skin of arms, legs, and front body (00400)27 services
- Anesthesia for other closed procedure on chest (00520)21 services
- Anesthesia for access to central vein (00532)19 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 pressure71%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)68%
- Arthritis48%
- Anxiety34%
- Diabetes32%
Practice locations
Addresses where Alexandra Lewis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1275 York AveNew York, NY 10065 (212) 639‑2000
Group practices
Medicare enrollment lists Alexandra Lewis as a member of this group (CMS data updated October 2, 2026).
- Memorial Anesthesiology Group302 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Other clinicians in Memorial Anesthesiology Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Univ Of Pittsburgh School Of Dental Medicine |
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861703332 |
| Corrections | Report an error or suggest an update → |
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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians