Quick answers
- Does Lewis R. Lipsey accept Medicare assignment?
- Yes. Medicare's clinician data says Lewis R. Lipsey 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 Lewis R. Lipsey see?
- In 2024, CMS data shows 22 Original Medicare patients and 14,313 services for Lewis R. Lipsey. This counts Original Medicare only and measures volume, not quality.
- What is Lewis R. Lipsey's NPI number?
- 1902853674. 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 Lewis R. Lipsey, 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 | 22 |
|---|---|
| Services billed to Medicare | 14,313 |
| Different services or procedures | 35 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)159 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)148 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%
- Diabetes50%
Practice locations
Addresses where Lewis R. Lipsey is enrolled with Medicare (CMS data updated October 2, 2026).
- 51 E 90th StNew York, NY 10128 (212) 828‑4800
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Yale University School Of Medicine |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902853674 |
| 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