Katherine Wu
NPI 1881013035 · Rheumatology Physician · Dublin, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Wu is a Rheumatology Physician provider in Dublin, CA (NPI 1881013035).
Provider details
- NPI number
- 1881013035
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- A141727 (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
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
510 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 | 175 | $154 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 170 | $19 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 67 | $198 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 36 | $212 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 27 | $260 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 207 | 59 |
| Alendronate Sodium | 121 | 36 |
| Hydroxychloroquine Sulfate | 104 | 42 |
| Methotrexate Sodiumbrand: Methotrexate | 39 | 15 |
| Allopurinol | 38 | — |
| Colchicine | 32 | 18 |
| Celecoxib | 25 | — |
| Gabapentin |
Practice location
Mailing address
Additional practice locations (2)
- 757 Westwood PlzSuite 7501Los Angeles, CA 90095-8358Phone: (650) 793-5250
- 757 Westwood PlzSuite 7501Los Angeles, CA 90095-8358Phone: (650) 793-5250
Registry dates
- Enumerated
- 2014-04-15
- Last updated
- 2020-06-03
- Certified
- 2020-06-03
Frequently asked questions
- What is Katherine Wu's NPI number?
- Katherine Wu's National Provider Identifier (NPI) is 1881013035, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Wu's specialty?
- Katherine Wu is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Wu located?
- Katherine Wu's practice location on file with NPPES is 4050 Dublin Blvd, Dublin, CA 94568.
- What is Katherine Wu's phone number?
- The practice phone number listed in the NPPES registry for Katherine Wu is (925) 875-6100.
- Does Katherine Wu accept Medicare?
- Katherine Wu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Wu's NPI active?
- Yes — Katherine Wu's NPI (1881013035) is active in the NPPES registry as of the last update on 2020-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.