Hui-Shan Wen, DO
NPI 1598843070 · Hospitalist Physician · San Rafael, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hui-Shan Wen, DO is a Hospitalist Physician provider in San Rafael, CA (NPI 1598843070).
Provider details
- NPI number
- 1598843070
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 20A9083 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Monohydrate | 31 | 31 |
| Cefuroxime Axetilbrand: Cefuroxime | 22 | 22 |
| Torsemide | 21 | 17 |
| Atorvastatin Calcium | 19 | 13 |
| Cefadroxil | 14 | 14 |
| Atropine Sulfate | 11 | — |
| Furosemide | 11 | — |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$36 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-09
Frequently asked questions
- What is Hui-Shan Wen's NPI number?
- Hui-Shan Wen's National Provider Identifier (NPI) is 1598843070, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hui-Shan Wen's specialty?
- Hui-Shan Wen is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Hui-Shan Wen located?
- Hui-Shan Wen's practice location on file with NPPES is 99 Montecillo Rd, San Rafael, CA 94903-3308.
- What is Hui-Shan Wen's phone number?
- The practice phone number listed in the NPPES registry for Hui-Shan Wen is (415) 444-4885.
- Does Hui-Shan Wen accept Medicare?
- Hui-Shan Wen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hui-Shan Wen's NPI active?
- Yes — Hui-Shan Wen's NPI (1598843070) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.