Josephine Hwu, MD
Nephrology Physician · Alhambra, CA
Josephine Hwu, MD is a nephrology physician with a practice address in Alhambra, California, and NPI 1194170894, issued on May 1, 2016. Check the license (California A154264, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Josephine Hwu
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A154264 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1027 E Main St, Alhambra, CA 91801
- Phone
- (626) 280-0676
- Enumerated
- May 1, 2016
- Record last updated
- Apr 27, 2026
- Medicare enrollment
- Enrolled (PECOS I20211005001089); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 1027 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paul Hwu, M.D.Nephrology Physician1073895868
- Shirish Patel, MDSurgery Physician1457420622
Verify Josephine Hwu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A154264Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average nephrology physician in 2024
925 Medicare Part D claims for 134 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate58 claims
- Losartan Potassium44 claims
- Pantoprazole Sodium36 claims
- Atorvastatin Calcium35 claims
- Carvedilol26 claims
- Furosemide25 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.
Industry payments in 2024: $167.21
4 payments; by number, the most common kind was food and beverage; the largest payer was Ardelyx, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Golden Pacific Nephrology Medical Clinic IncMonterey Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Josephine Hwu among 1,468 nephrology physician records in California
Josephine Hwu, MD is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 89% of them.
- NPI issued2016 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2016 · median 2001 among the 1,128 with a school on file
- Record last updated2026 · 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 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in California
There are 1,468 nephrology physician records in California.
All 1,468 in California → Every provider in Alhambra → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Paul Hwu, M.D.Alhambra, CA 918011073895868
- Jimmy YueAlhambra, CA 918011932128618
- Mohammed Alam, M.D.Upland, CA 917861750316139
- Mary BuiUpland, CA 917861841225224
- Gerald Friedman, MDUpland, CA 917861366474322
- Jonardi Handoko, MDUpland, CA 917861780664581
- Solomon Huang, M.D.Upland, CA 917861184939381
- Minna Huang, M.D.Upland, CA 917861841447745
Common questions
What is Josephine Hwu, MD's NPI number?
Josephine Hwu, MD's National Provider Identifier (NPI) is 1194170894, issued on May 1, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Josephine Hwu, MD located?
The NPPES record lists a practice address at 1027 E Main St, Alhambra, CA, 91801. Phone: (626) 280-0676. Providers update this record themselves, so call before visiting.
How can I verify Josephine Hwu, MD's license?
NPPES lists California license number A154264, 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 Josephine Hwu, MD prescribe under Medicare Part D?
In 2024, Josephine Hwu, MD had 925 Medicare Part D claims for 134 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.