Wei Chen, MD
NPI 1013190370 · Internal Medicine Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wei Chen, MD is a Internal Medicine Physician provider in San Jose, CA (NPI 1013190370).
Provider details
- NPI number
- 1013190370
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A97424 (CA)
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
18 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
616 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 203 | $234 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 196 | $111 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 43 | $89 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 39 | $75 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 38 | $10 |
| Test to Determine Lung Volumes Using Sensors94726 | 35 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 87 | 35 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 71 | 14 |
| Montelukast Sodium | 54 | 14 |
| Azithromycin | 48 | 15 |
| Umeclidinium Bromidebrand: Incruse Ellipta | 46 | 13 |
| Albuterol Sulfatebrand: Ventolin Hfa | 41 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-12-10
- Last updated
- 2007-12-10
Frequently asked questions
- What is Wei Chen's NPI number?
- Wei Chen's National Provider Identifier (NPI) is 1013190370, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wei Chen's specialty?
- Wei Chen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Wei Chen located?
- Wei Chen's practice location on file with NPPES is 751 S Bascom Ave, San Jose, CA 95128-2604.
- What is Wei Chen's phone number?
- The practice phone number listed in the NPPES registry for Wei Chen is (408) 885-5000.
- Does Wei Chen accept Medicare?
- Wei Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wei Chen's NPI active?
- Yes — Wei Chen's NPI (1013190370) is active in the NPPES registry as of the last update on 2007-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.