Yuwen Xu, MD
NPI 1184774994 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yuwen Xu, MD is a Internal Medicine Physician provider in San Francisco, CA (NPI 1184774994).
Provider details
- NPI number
- 1184774994
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A74447 (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
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
41 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 Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 28 | $70 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 13 | $70 |
Typical Medicare-allowed amounts for these services range $70–$70 (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 · 89 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 568 | 186 |
| Amlodipine Besylate | 516 | 164 |
| Losartan Potassium | 275 | 86 |
| Alendronate Sodium | 231 | 73 |
| Lisinopril | 192 | 69 |
| Lisinopril/Hydrochlorothiazidebrand: Lisinopril-Hydrochlorothiazide | 192 | 58 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-12
- Last updated
- 2021-12-13
Frequently asked questions
- What is Yuwen Xu's NPI number?
- Yuwen Xu's National Provider Identifier (NPI) is 1184774994, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yuwen Xu's specialty?
- Yuwen Xu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yuwen Xu located?
- Yuwen Xu's practice location on file with NPPES is 2200 Ofarrell St, San Francisco, CA 94115-3357.
- What is Yuwen Xu's phone number?
- The practice phone number listed in the NPPES registry for Yuwen Xu is (415) 833-2000.
- Does Yuwen Xu accept Medicare?
- Yuwen Xu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yuwen Xu's NPI active?
- Yes — Yuwen Xu's NPI (1184774994) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.