Quick answers
- Does Yi-An Lee accept Medicare assignment?
- Yes. Medicare's clinician data says Yi-An Lee 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 Yi-An Lee see?
- In 2024, CMS data shows 107 Original Medicare patients and 249 services for Yi-An Lee. This counts Original Medicare only and measures volume, not quality.
- What is Yi-An Lee's NPI number?
- 1427220961. 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 Yi-An Lee, 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 | 107 |
|---|---|
| Services billed to Medicare | 249 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)69 services
- Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)38 services
- Automated urinalysis test (81003)17 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)16 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)14 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 pressure64%
- Arthritis57%
- Osteoporosis34%
- Diabetes33%
- Ischemic heart disease25%
Practice locations
Addresses where Yi-An Lee is enrolled with Medicare (CMS data updated October 2, 2026).
- 2248 31st StAstoria, NY 11105 (718) 571‑9192
- 5 Penn PlzNew York, NY 10001 (646) 647‑1249
Group practices
Medicare enrollment lists Yi-An Lee as a member of this group (CMS data updated October 2, 2026).
- City Medical of Upper East Side PLLC658 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Astoria
Clinicians with the same Medicare primary specialty in Astoria, NY — not a recommendation.
Other clinicians in City Medical of Upper East Side PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427220961 |
| 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