Yen-Tsun Lai, M.D.
NPI 1790727535 · Geriatric Medicine (Internal Medicine) Physician · Renton, WA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yen-Tsun Lai, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider in Renton, WA (NPI 1790727535).
Provider details
- NPI number
- 1790727535
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD00042518 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,463 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 583 | $104 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 269 | $6 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 167 | $143 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 155 | $192 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 88 | $71 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 420 | 123 |
| Atorvastatin Calcium | 413 | 133 |
| Levothyroxine Sodium | 326 | 104 |
| Losartan Potassium | 265 | 102 |
| Rosuvastatin Calcium | 202 | 69 |
| Metoprolol Succinate | 188 | 58 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-12
- Last updated
- 2018-11-26
Frequently asked questions
- What is Yen-Tsun Lai's NPI number?
- Yen-Tsun Lai's National Provider Identifier (NPI) is 1790727535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yen-Tsun Lai's specialty?
- Yen-Tsun Lai is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Yen-Tsun Lai located?
- Yen-Tsun Lai's practice location on file with NPPES is 4033 Talbot Rd S Ste 570, Renton, WA 98055.
- What is Yen-Tsun Lai's phone number?
- The practice phone number listed in the NPPES registry for Yen-Tsun Lai is (425) 690-3489.
- Does Yen-Tsun Lai accept Medicare?
- Yen-Tsun Lai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yen-Tsun Lai's NPI active?
- Yes — Yen-Tsun Lai's NPI (1790727535) is active in the NPPES registry as of the last update on 2018-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.