Jim-Jer Hwu, MD
NPI 1275634248 · Nephrology Physician · Monterey Park, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jim-Jer Hwu, MD is a Nephrology Physician provider in Monterey Park, CA (NPI 1275634248).
Provider details
- NPI number
- 1275634248
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A41098 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,241 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 984 | $369 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 567 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 471 | $138 |
| Home Dialysis Services Per Month (20 Years Or Older)90966 | 379 | $306 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 243 | $81 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 113 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 536 | 170 |
| Olmesartan Medoxomil | 401 | 120 |
| Hydralazine Hcl | 305 | 93 |
| Losartan Potassium | 238 | 92 |
| Allopurinol | 238 | 65 |
| Metoprolol Succinate | 223 | 59 |
| Furosemide | 212 | 60 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$90 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-25
- Last updated
- 2013-02-20
Frequently asked questions
- What is Jim-Jer Hwu's NPI number?
- Jim-Jer Hwu's National Provider Identifier (NPI) is 1275634248, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jim-Jer Hwu's specialty?
- Jim-Jer Hwu is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Jim-Jer Hwu located?
- Jim-Jer Hwu's practice location on file with NPPES is 120 E Emerson Ave, Monterey Park, CA 91755-1709.
- What is Jim-Jer Hwu's phone number?
- The practice phone number listed in the NPPES registry for Jim-Jer Hwu is (626) 280-0676.
- Does Jim-Jer Hwu accept Medicare?
- Jim-Jer Hwu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jim-Jer Hwu's NPI active?
- Yes — Jim-Jer Hwu's NPI (1275634248) is active in the NPPES registry as of the last update on 2013-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.