Ashley Mason, PAC
Physician Assistant · Gilroy, CA
Ashley Mason, PAC is a physician assistant with a practice address in Gilroy, California, and NPI 1629495890, issued on Mar 25, 2014. Check the license (California 51515, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ashley Mason
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 51515 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9460 N Name Uno, Gilroy, CA 95020
- Phone
- (408) 729-9700
- Enumerated
- Mar 25, 2014
- Record last updated
- Dec 30, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160108001433); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 9460 N Name Uno
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jumnah Arasu, M.D., F.A.C.O.G.Obstetrics & Gynecology Physician1790824878
- Richard Dohn, M.DFamily Medicine Physician1558384446
- Dana Edgar, PTPhysical Therapist1376943290
- Cortley Fritter, PTPhysical Therapist1225100522
- George Green, M.DPulmonary Disease Physician1811074875
- Nicholas Kaslin, DDSDentist1184119604
Verify Ashley Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 51515Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average physician assistant in 2024
1,690 Medicare Part D claims for 113 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 50 claims were for opioids.
Most prescribed
- Metformin Hcl97 claims
- Amlodipine Besylate91 claims
- Atorvastatin Calcium88 claims
- Gabapentin77 claims
- Losartan Potassium68 claims
- Lisinopril58 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $96.88
5 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Bay Area Community HealthSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashley Mason among 14,451 physician assistant records in California
Ashley Mason, PAC is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 38% of them.
- NPI issued2014 · 38% of these records are older, 59% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2013 · median 2018 among the 7,214 with a school on file
- Record last updated2015 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 physician assistant records list a practice address in Gilroy
They are 15 of the 2,100 NPPES records with a practice address in Gilroy, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Gilroy → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Elizat Baialieva, PA-CGilroy, CA 950201073028767
- Ashley Baksh, PA-CGilroy, CA 950201598273328
- Sloane Convey, PA-CGilroy, CA 950201568790699
- Anisa DahirGilroy, CA 950201841069135
- Nancy Farah, P.A.-C.Gilroy, CA 950201528179983
- Daniel HarrisGilroy, CA 950201891114278
- Monika Hassler, PA-CGilroy, CA 950201710090717
- Marisa Liang, PA-CGilroy, CA 950201154712933
Common questions
What is Ashley Mason, PAC's NPI number?
Ashley Mason, PAC's National Provider Identifier (NPI) is 1629495890, issued on Mar 25, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Ashley Mason, PAC located?
The NPPES record lists a practice address at 9460 N Name Uno, Gilroy, CA, 95020. Phone: (408) 729-9700. Providers update this record themselves, so call before visiting.
How can I verify Ashley Mason, PAC's license?
NPPES lists California license number 51515, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ashley Mason, PAC prescribe under Medicare Part D?
In 2024, Ashley Mason, PAC had 1,690 Medicare Part D claims for 113 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.