Vivian Hoang, PA-C
NPI 1558845412 · Physician Assistant · Los Angeles, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivian Hoang, PA-C is a Physician Assistant provider in Los Angeles, CA (NPI 1558845412).
Provider details
- NPI number
- 1558845412
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 133 | 51 |
| Metformin Hcl | 92 | 29 |
| Lisinopril | 64 | 24 |
| Pioglitazone Hcl | 58 | 20 |
| Losartan Potassium | 54 | 17 |
| Amlodipine Besylate | 46 | 20 |
| Hydrochlorothiazide | 41 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$95 across 3 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
- 2018-09-18
- Last updated
- 2024-11-25
- Certified
- 2024-11-25
Frequently asked questions
- What is Vivian Hoang's NPI number?
- Vivian Hoang's National Provider Identifier (NPI) is 1558845412, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Hoang's specialty?
- Vivian Hoang is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Vivian Hoang located?
- Vivian Hoang's practice location on file with NPPES is 2032 Marengo St, Los Angeles, CA 90033-1319.
- What is Vivian Hoang's phone number?
- The practice phone number listed in the NPPES registry for Vivian Hoang is (213) 989-7700.
- Does Vivian Hoang accept Medicare?
- Vivian Hoang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivian Hoang's NPI active?
- Yes — Vivian Hoang's NPI (1558845412) is active in the NPPES registry as of the last update on 2024-11-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.