I Jen Chen, MD
NPI 1023187622 · Internal Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
I Jen Chen, MD is a Internal Medicine Physician provider in Seattle, WA (NPI 1023187622).
Provider details
- NPI number
- 1023187622
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD00022361 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
279 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 169 | $80 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 110 | $115 |
Typical Medicare-allowed amounts for these services range $80–$115 (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 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 194 | 23 |
| Levothyroxine Sodium | 188 | 11 |
| Tamsulosin Hcl | 170 | 14 |
| Amlodipine Besylate | 153 | 21 |
| Furosemide | 134 | 11 |
| Metformin Hcl | 110 | 15 |
| Losartan Potassium | 91 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-07
- Last updated
- 2010-06-22
Frequently asked questions
- What is I Jen Chen's NPI number?
- I Jen Chen's National Provider Identifier (NPI) is 1023187622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is I Jen Chen's specialty?
- I Jen Chen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is I Jen Chen located?
- I Jen Chen's practice location on file with NPPES is 10317 Greenwood Avenue N, Seattle, WA 98133-9152.
- What is I Jen Chen's phone number?
- The practice phone number listed in the NPPES registry for I Jen Chen is (206) 297-6056.
- Does I Jen Chen accept Medicare?
- I Jen Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is I Jen Chen's NPI active?
- Yes — I Jen Chen's NPI (1023187622) is active in the NPPES registry as of the last update on 2010-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.