Katherine Wu
Rheumatology Physician · Dublin, CA
Katherine Wu is a rheumatology physician with a practice address in Dublin, California, and NPI 1881013035, issued on Apr 15, 2014. Check the license (California A141727, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Katherine Wu
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A141727 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4050 Dublin Blvd, Dublin, CA 94568
- Phone
- (925) 875-6100
- Enumerated
- Apr 15, 2014
- Record last updated
- Jun 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191024001871); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 4050 Dublin Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mimi Akaba, FNPNurse Practitioner1851472021
- Sana Ali, D.O.Family Medicine Physician1396199550
- Samira Aliabadi, MDPediatrics Physician1508957887
- Elizabeth Ancheta, MDPediatrics Physician1801933775
- Amardeep Angroola, M.D.Hospitalist Physician1821253568
- Carla Antypas, DOFamily Medicine Physician1063096113
Verify Katherine Wu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A141727Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average rheumatology physician in 2024
804 Medicare Part D claims for 182 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Prednisone207 claims
- Alendronate Sodium121 claims
- Hydroxychloroquine Sulfate104 claims
- Methotrexate39 claims
- Allopurinol38 claims
- Colchicine32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Wu among 926 rheumatology physician records in California
Katherine Wu is one of 926 rheumatology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 79% of them.
- NPI issued2014 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2014 · median 2003 among the 641 with a school on file
- Record last updated2020 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Dublin → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Lukas Lasyone, M.D., MPH&TMDublin, CA 945681922485747
- Hisako LeungPleasanton, CA 945661194826354
- Rae Bourne, M.D.Orinda, CA 945631356569628
- Shraddha Prakash, M.D.San Leandro, CA 945771053576066
- Brittany Goss, D.O.Napa, CA 945581093911356
- C. Michael Neuwelt, M.D.San Leandro, CA 945781598786790
- Thomas Jamison, MDMartinez, CA 945531336227404
- Melissa McNamara, MDSan Ramon, CA 945831477679793
Common questions
What is Katherine Wu's NPI number?
Katherine Wu's National Provider Identifier (NPI) is 1881013035, issued on Apr 15, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Wu located?
The NPPES record lists a practice address at 4050 Dublin Blvd, Dublin, CA, 94568. Phone: (925) 875-6100. Providers update this record themselves, so call before visiting.
How can I verify Katherine Wu's license?
NPPES lists California license number A141727, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Wu prescribe under Medicare Part D?
In 2024, Katherine Wu had 804 Medicare Part D claims for 182 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.