Anna Ngo, PA
NPI 1649525437 · Medical Physician Assistant · San Francisco, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Ngo, PA is a Medical Physician Assistant provider in San Francisco, CA (NPI 1649525437).
Provider details
- NPI number
- 1649525437
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- PA22335 (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
13 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
15 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 15 | $136 |
Typical Medicare-allowed amounts for these services range $136–$136 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 46 | 32 |
| Simvastatin | 33 | 17 |
| Amlodipine Besylate | 33 | 24 |
| Losartan Potassium | 20 | 18 |
| Lisinopril | 17 | — |
| Metformin Hcl | 16 | — |
| Alendronate Sodium | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$109 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
- 2012-07-17
- Last updated
- 2014-02-14
Frequently asked questions
- What is Anna Ngo's NPI number?
- Anna Ngo's National Provider Identifier (NPI) is 1649525437, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Ngo's specialty?
- Anna Ngo is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Anna Ngo located?
- Anna Ngo's practice location on file with NPPES is 2574 San Bruno Ave, San Francisco, CA 94134-1505.
- What is Anna Ngo's phone number?
- The practice phone number listed in the NPPES registry for Anna Ngo is (415) 391-9686.
- Does Anna Ngo accept Medicare?
- Anna Ngo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Ngo's NPI active?
- Yes — Anna Ngo's NPI (1649525437) is active in the NPPES registry as of the last update on 2014-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.