Anna Nguyen, PA-C
NPI 1639888175 · Physician Assistant · Huntington Beach, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Nguyen, PA-C is a Physician Assistant provider in Huntington Beach, CA (NPI 1639888175).
Provider details
- NPI number
- 1639888175
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA62017 (CA)
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 tenure25% of score
3 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
99 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 | 81 | $76 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 18 | $9 |
Typical Medicare-allowed amounts for these services range $9–$76 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 96 | 41 |
| Levothyroxine Sodium | 81 | 38 |
| Amlodipine Besylate | 80 | 33 |
| Losartan Potassium | 51 | 20 |
| Azithromycin | 43 | 41 |
| Hydrochlorothiazide | 39 | 24 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,263 across 56 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 (1)
- 2001 Westcliff Dr Ste 200Newport Beach, CA 92660-5552Phone: (714) 845-5900Fax: (714) 845-5920
Registry dates
- Enumerated
- 2022-11-22
- Last updated
- 2022-12-13
- Certified
- 2022-12-13
Frequently asked questions
- What is Anna Nguyen's NPI number?
- Anna Nguyen's National Provider Identifier (NPI) is 1639888175, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Nguyen's specialty?
- Anna Nguyen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Anna Nguyen located?
- Anna Nguyen's practice location on file with NPPES is 9131 Adams Ave, Huntington Beach, CA 92646-3462.
- What is Anna Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Anna Nguyen is (714) 845-5900.
- Does Anna Nguyen accept Medicare?
- Anna Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Nguyen's NPI active?
- Yes — Anna Nguyen's NPI (1639888175) is active in the NPPES registry as of the last update on 2022-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.