Quick answers
- Does Yen-Tsun Lai accept Medicare assignment?
- Yes. Medicare's clinician data says Yen-Tsun Lai 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 Yen-Tsun Lai see?
- In 2024, CMS data shows 467 Original Medicare patients and 1,515 services for Yen-Tsun Lai. This counts Original Medicare only and measures volume, not quality.
- What is Yen-Tsun Lai's NPI number?
- 1790727535. 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 Yen-Tsun Lai, 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 | 467 |
|---|---|
| Services billed to Medicare | 1,515 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 82 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)583 services
- Insertion of needle into vein for collection of blood sample (36415)269 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)167 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)155 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)88 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%
- Arthritis53%
- Ischemic heart disease29%
- Chronic kidney disease26%
- Osteoporosis25%
Hospitals where Yen-Tsun Lai works
Medicare's Facility Affiliation Data lists Yen-Tsun Lai 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.
- Evergreenhealth Medical CenterKirkland, WA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 500124
- Evergreenhealth MonroeMonroe, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500084
- Overlake Hospital Medical Center & ClinicsBellevue, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500051
Practice locations
Addresses where Yen-Tsun Lai is enrolled with Medicare (CMS data updated October 2, 2026).
- 12040 NE 128th StKirkland, WA 98034 (425) 899‑2560
- 2600 Compass RdGlenview, IL 60026
Group practices
Medicare enrollment lists Yen-Tsun Lai as a member of these groups (CMS data updated October 2, 2026).
- Select Rehabilitation, LLC2,046 clinicians in the group
- Select Outpatient Services Inc805 clinicians in the group
- King County Public Hospital District No 2608 clinicians in the group
Specialties
- Geriatric Medicineprimary
- Internal Medicinealso
Other geriatricians in Kirkland
Clinicians with the same Medicare primary specialty in Kirkland, WA — not a recommendation.
Other clinicians in Select Rehabilitation, LLC
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 | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1790727535 |
| 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