Long Huen Au, PA-C
NPI 1821664996 · Physician Assistant · San Diego, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Long Huen Au, PA-C is a Physician Assistant provider in San Diego, CA (NPI 1821664996).
Provider details
- NPI number
- 1821664996
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Amlodipine Besylate | 45 |
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 38 |
| Rosuvastatin Calcium | 34 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 31 |
| Emtricitabine/Tenofov Alafenambrand: Descovy | 30 |
| Omeprazole | 23 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 22 |
| Gabapentin | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,564 across 103 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
- 2021-05-31
- Last updated
- 2021-10-26
- Certified
- 2021-10-26
Frequently asked questions
- What is Long Huen Au's NPI number?
- Long Huen Au's National Provider Identifier (NPI) is 1821664996, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Long Huen Au's specialty?
- Long Huen Au is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Long Huen Au located?
- Long Huen Au's practice location on file with NPPES is 3580 Fifth Ave, San Diego, CA 92103-5017.
- What is Long Huen Au's phone number?
- The practice phone number listed in the NPPES registry for Long Huen Au is (619) 516-8931.
- Does Long Huen Au accept Medicare?
- Long Huen Au is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Long Huen Au's NPI active?
- Yes — Long Huen Au's NPI (1821664996) is active in the NPPES registry as of the last update on 2021-10-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.