Michelle Hwang, M.D.
NPI 1134503337 · Nephrology Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Hwang, M.D. is a Nephrology Physician provider in Torrance, CA (NPI 1134503337).
Provider details
- NPI number
- 1134503337
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A144799 (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
10 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
2,833 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 814 | $123 |
| 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 | 771 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 623 | $122 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 153 | $179 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 150 | $154 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 155 | 65 |
| Losartan Potassium | 134 | 48 |
| Furosemide | 85 | 28 |
| Prednisone | 69 | 23 |
| Carvedilol | 57 | 24 |
| Nifedipinebrand: Nifedipine Er | 56 | 22 |
| Hydralazine Hcl | 52 | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$673 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
- 2015-07-17
- Last updated
- 2023-03-07
- Certified
- 2020-11-02
Frequently asked questions
- What is Michelle Hwang's NPI number?
- Michelle Hwang's National Provider Identifier (NPI) is 1134503337, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Hwang's specialty?
- Michelle Hwang is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Michelle Hwang located?
- Michelle Hwang's practice location on file with NPPES is 3445 Pacific Coast Hwy Ste 100, Torrance, CA 90505-6659.
- What is Michelle Hwang's phone number?
- The practice phone number listed in the NPPES registry for Michelle Hwang is (310) 542-6333.
- Does Michelle Hwang accept Medicare?
- Michelle Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Hwang's NPI active?
- Yes — Michelle Hwang's NPI (1134503337) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.