Quick answers
- Does Samuel M. Liu accept Medicare assignment?
- Yes. Medicare's clinician data says Samuel M. Liu 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 Samuel M. Liu see?
- In 2024, CMS data shows 1,167 Original Medicare patients and 702,762 services for Samuel M. Liu. This counts Original Medicare only and measures volume, not quality.
- What is Samuel M. Liu's NPI number?
- 1245243013. 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 Samuel M. 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 | 1,167 |
|---|---|
| Services billed to Medicare | 702,762 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Chloroprocaine hcl ophthalmic, 3% gel, 1 mg (J2403)683,800 services
- Injection, faricimab-svoa, 0.1 mg (J2777)10,020 services
- Injection, aflibercept, 1 mg (J0178)1,758 services
- Injection of drug into eye (67028)1,253 services
- Imaging of retina (92134)1,132 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%
- Arthritis43%
- Diabetes34%
- Ischemic heart disease27%
- Osteoporosis22%
Practice locations
Addresses where Samuel M. Liu is enrolled with Medicare (CMS data updated October 2, 2026).
- 419 N Harrison St, Suite 104Princeton, NJ 08540 (609) 921‑9437
Group practices
Medicare enrollment lists Samuel M. Liu as a member of this group (CMS data updated October 2, 2026).
- Princeton Eye Group, PA14 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Princeton
Clinicians with the same Medicare primary specialty in Princeton, NJ — not a recommendation.
Other clinicians in Princeton Eye Group, PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Vanderbilt University School Of Medicine |
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245243013 |
| 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