Inyong Hwang
NPI 1528346111 · Cardiovascular Disease Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Inyong Hwang is a Cardiovascular Disease Physician provider in Los Angeles, CA (NPI 1528346111).
Provider details
- NPI number
- 1528346111
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- A127657 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,431 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,515 | $97 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 355 | $218 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 304 | $15 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 292 | $213 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 222 | $176 |
| Electrocardiogram (ecg) Up to 30 Days Continuous With Transmission of Patient Triggered Events With Review and Report By Health Care Professional |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 592 | 214 |
| Metoprolol Succinate | 365 | 124 |
| Apixabanbrand: Eliquis | 323 | 72 |
| Losartan Potassium | 244 | 85 |
| Amlodipine Besylate | 178 | 69 |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er | 165 | 61 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$847 across 31 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
Additional practice locations (2)
- 1995 W Malvern Ave Ste aFullerton, CA 92833-5772Phone: (714) 760-9988Fax: (213) 528-2222
- University of Tennessee 910 Madison AveSuite 1031Memphis, TN 38163-0001Phone: (901) 448-5814
Registry dates
- Enumerated
- 2011-07-30
- Last updated
- 2024-02-15
- Certified
- 2024-02-15
Frequently asked questions
- What is Inyong Hwang's NPI number?
- Inyong Hwang's National Provider Identifier (NPI) is 1528346111, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Inyong Hwang's specialty?
- Inyong Hwang is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Inyong Hwang located?
- Inyong Hwang's practice location on file with NPPES is 3130 W Olympic Blvd Ste 250, Los Angeles, CA 90006-2491.
- What is Inyong Hwang's phone number?
- The practice phone number listed in the NPPES registry for Inyong Hwang is (213) 528-1111.
- Does Inyong Hwang accept Medicare?
- Inyong Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Inyong Hwang's NPI active?
- Yes — Inyong Hwang's NPI (1528346111) is active in the NPPES registry as of the last update on 2024-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.