Yvonne Yen, D.O.
NPI 1346566098 · Internal Medicine Physician · Covington, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yvonne Yen, D.O. is a Internal Medicine Physician provider in Covington, WA (NPI 1346566098).
Provider details
- NPI number
- 1346566098
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A11926 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 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
456 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 | 251 | $102 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 96 | $141 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 62 | $152 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 47 | $69 |
Typical Medicare-allowed amounts for these services range $69–$152 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 94 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 419 | 119 |
| Amlodipine Besylate | 339 | 91 |
| Levothyroxine Sodium | 240 | 64 |
| Losartan Potassium | 215 | 62 |
| Lisinopril | 174 | 52 |
| Rosuvastatin Calcium | 167 | 50 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-20
- Last updated
- 2021-08-02
- Certified
- 2021-08-02
Frequently asked questions
- What is Yvonne Yen's NPI number?
- Yvonne Yen's National Provider Identifier (NPI) is 1346566098, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yvonne Yen's specialty?
- Yvonne Yen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yvonne Yen located?
- Yvonne Yen's practice location on file with NPPES is 27500 168th Pl Se, Covington, WA 98042-5563.
- What is Yvonne Yen's phone number?
- The practice phone number listed in the NPPES registry for Yvonne Yen is (425) 690-3430.
- Does Yvonne Yen accept Medicare?
- Yvonne Yen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yvonne Yen's NPI active?
- Yes — Yvonne Yen's NPI (1346566098) is active in the NPPES registry as of the last update on 2021-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.