Jim-Jer Hwu, MD
Nephrology Physician · Monterey Park, CA
Jim-Jer Hwu, MD is a nephrology physician with a practice address in Monterey Park, California, and NPI 1275634248, issued on Sep 25, 2006. Check the license (California A41098, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jim-Jer Hwu
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A41098 CA
Self-reported in NPPES; status is on the state search - Practice location
- 120 E Emerson Ave, Monterey Park, CA 91755
- Phone
- (626) 280-0676
- Enumerated
- Sep 25, 2006
- Record last updated
- Feb 20, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (626) 280-2694
- Medicaid ID
- 00A410980 CA
- Medicare enrollment
- Enrolled (PECOS I20100312000337); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 120 E Emerson Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chi Hang Cheang, N.P.Acute Care Nurse Practitioner1609200146
- Hsin-Hui Hwu, M.D.Pediatrics Physician1871675736
- Than Lin, D.OInternal Medicine Physician1851524383
- Ann Bernice Villena, FNP-BCNurse Practitioner1053039529
Verify Jim-Jer Hwu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A41098Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.3 times the Medicare Part D claims of the average nephrology physician in 2024
7,752 Medicare Part D claims for 797 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 12 claims were for opioids.
Most prescribed
- Amlodipine Besylate536 claims
- Olmesartan Medoxomil401 claims
- Hydralazine Hcl305 claims
- Allopurinol238 claims
- Losartan Potassium238 claims
- Metoprolol Succinate223 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: $89.61
4 payments; by number, the most common kind was food and beverage; the largest payer was Akebia Therapeutics 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).
Jim-Jer Hwu among 1,468 nephrology physician records in California
Jim-Jer 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 48% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1980 · median 2001 among the 1,128 with a school on file
- Record last updated2013 · 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 Monterey Park → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Hone Kaw, M.DMonterey Park, CA 917541750729588
- Carlos Meza, M.D.Monterey Park, CA 917541063592269
- Adam Sun, MDMonterey Park, CA 917541497712715
- Lynn Wang, M.D.Monterey Park, CA 917541598715062
- Charles Nguyen, M.D.Eastvale, CA 917521538400288
- Hla Myint Maung Hwang, M.D.Ontario, CA 917621356357560
- Abid Khan, M.D.Ontario, CA 917621326184524
- Deborah Lu, MDHacienda Heights, CA 917451992264709
Common questions
What is Jim-Jer Hwu, MD's NPI number?
Jim-Jer Hwu, MD's National Provider Identifier (NPI) is 1275634248, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jim-Jer Hwu, MD located?
The NPPES record lists a practice address at 120 E Emerson Ave, Monterey Park, CA, 91755. Phone: (626) 280-0676. Providers update this record themselves, so call before visiting.
How can I verify Jim-Jer Hwu, MD's license?
NPPES lists California license number A41098, 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 Jim-Jer Hwu, MD prescribe under Medicare Part D?
In 2024, Jim-Jer Hwu, MD had 7,752 Medicare Part D claims for 797 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.