Ashley Nguyentat, PA-C
NPI 1215589007 · Physician Assistant · Stanford, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ashley Nguyentat, PA-C is a Physician Assistant provider in Stanford, CA (NPI 1215589007).
Provider details
- NPI number
- 1215589007
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 60403 (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
6 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
29 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) |
|---|---|---|
| Drainage of Fluid From Abdominal Cavity Using Imaging Guidance49083 | 29 | $86 |
Typical Medicare-allowed amounts for these services range $86–$86 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$35 across 2 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)
- 1500 Duarte RdDuarte, CA 91010-3012Phone: (626) 256-4673
Registry dates
- Enumerated
- 2019-07-11
- Last updated
- 2023-11-21
- Certified
- 2023-11-21
Frequently asked questions
- What is Ashley Nguyentat's NPI number?
- Ashley Nguyentat's National Provider Identifier (NPI) is 1215589007, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ashley Nguyentat's specialty?
- Ashley Nguyentat is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ashley Nguyentat located?
- Ashley Nguyentat's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Ashley Nguyentat's phone number?
- The practice phone number listed in the NPPES registry for Ashley Nguyentat is (650) 723-4000.
- Does Ashley Nguyentat accept Medicare?
- Ashley Nguyentat is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ashley Nguyentat's NPI active?
- Yes — Ashley Nguyentat's NPI (1215589007) is active in the NPPES registry as of the last update on 2023-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.