Quick answers
- Does Spencer D. Liu accept Medicare assignment?
- Medicare's clinician data says Spencer D. Liu may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Spencer D. Liu see?
- In 2024, CMS data shows 239 Original Medicare patients and 820 services for Spencer D. Liu. This counts Original Medicare only and measures volume, not quality.
- What is Spencer D. Liu's NPI number?
- 1396131397. 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 Spencer D. Liu, 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 | 239 |
|---|---|
| Services billed to Medicare | 820 |
| Different services or procedures | 46 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Critical care, first 30-74 minutes (99291)238 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)202 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)82 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)59 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)41 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%
- Diabetes75%
- Ischemic heart disease75%
- Heart failure75%
- Chronic kidney disease66%
Hospitals where Spencer D. Liu works
Medicare's Facility Affiliation Data lists Spencer D. Liu 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.
- North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106
- Staten Island University HospitalStaten Island, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330160
Practice locations
Addresses where Spencer D. Liu is enrolled with Medicare (CMS data updated October 2, 2026).
- 1111 Marcus AveNew Hyde Park, NY 11042
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New York →
Other cardiologists in New Hyde Park
Clinicians with the same Medicare primary specialty in New Hyde Park, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1396131397 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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