Ashley Mason, PAC
NPI 1629495890 · Physician Assistant · Gilroy, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ashley Mason, PAC is a Physician Assistant provider in Gilroy, CA (NPI 1629495890).
Provider details
- NPI number
- 1629495890
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PAC
- Sex
- Female
- Sole proprietor
- No
- License
- 51515 (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 tenure33% of score
12 yrs in NPPES registry
- Profile completeness33% of score
100% 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 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 97 | 29 |
| Amlodipine Besylate | 91 | 27 |
| Atorvastatin Calcium | 88 | 36 |
| Gabapentin | 77 | 18 |
| Losartan Potassium | 68 | 23 |
| Lisinopril | 58 | 15 |
| Simvastatin | 55 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$97 across 5 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
- 2014-03-25
- Last updated
- 2015-12-30
Frequently asked questions
- What is Ashley Mason's NPI number?
- Ashley Mason's National Provider Identifier (NPI) is 1629495890, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ashley Mason's specialty?
- Ashley Mason is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ashley Mason located?
- Ashley Mason's practice location on file with NPPES is 9460 N Name Uno, Gilroy, CA 95020-3537.
- What is Ashley Mason's phone number?
- The practice phone number listed in the NPPES registry for Ashley Mason is (408) 729-9700.
- Does Ashley Mason accept Medicare?
- Ashley Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ashley Mason's NPI active?
- Yes — Ashley Mason's NPI (1629495890) is active in the NPPES registry as of the last update on 2015-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.