Ashley Meredith Mason, PA-C
- Part D claims, 2024
- 1,690
- Hospital affiliations
- 1
- Industry payments
- $166
- Medical group
- 1
- State license
- 1
- Practice address
- 40910 Fremont Boulevard, Fremont, CA 94538
- Practice phone
- Call (510) 252-6810
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Irvington Dave Clinic
FQHC - Main Site · Fremont, California
Find Ashley Mason's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Ashley Meredith Mason is a physician assistant in Fremont, California
Ashley Mason practices at Irvington Dave Clinic in Fremont, California.
Ashley Mason's NPI, 1629495890, was assigned on March 25, 2014. Ashley Mason holds California license 51515.
- NPI
- 1629495890NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880996743
- NPI enumeration date
- March 25, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 252-6810
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Ashley Meredith Mason practices at Irvington Dave Clinic in Fremont, California
Ashley Mason's primary practice is Irvington Dave Clinic, at 40910 Fremont Boulevard, Fremont, CA 94538 in Alameda County. The practice phone is (510) 252-6810.
- Irvington Dave Clinic40910 Fremont Boulevard, Fremont, CA 94538 · Alameda CountyPhone(510) 252-6810
Source: Dmand AI Affiliation Data
Ashley Meredith Mason is affiliated with 3 sites of care and 1 medical group
Ashley Mason's primary practice is Irvington Dave Clinic in Fremont, California. Ashley Mason is also affiliated with Santa Clara Valley Medical Center. The medical group on file is Bay Area Community Health. Dmand AI also links Ashley Mason to 1 more community health center, named with a free account. Ashley Mason's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Ashley Meredith Mason's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ashley Mason practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Irvington Dave Clinic | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Ashley Meredith Mason is one of 11,482 physician assistants in California
Physician assistant is Ashley Mason's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Ashley Mason is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Ashley Mason is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Ashley Mason
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Ashley Meredith Mason's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Ashley Mason's median patient age at 47, with 71% women.
Ashley Mason's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women71%
- Men29%
Source: Dmand AI Patient Panel Data
Ashley Meredith Mason wrote 1,690 Medicare Part D claims in 2024
In 2024, Ashley Mason wrote 1,690 Medicare Part D claims for 113 patients. 82% of them were for generic drugs. CMS names the drug for 1,299 of them, across 42 drugs with 11 or more claims each, at $173,705 in total drug cost.
Ashley Mason's Part D claims by kind of drug, 2024
- Generic1,390 claims82%
- Brand-name289 claims17%
- Other11 claims1%
Ashley Mason's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Ashley Mason's Part D claims, 2024
- Opioids3%50 of 1,690 claims
- Antibiotics4%68 of 1,690 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Ashley Meredith Mason takes part in Medicare
Ashley Mason accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Ashley Meredith Mason received $166 in industry payments from 2024 to 2025
CMS Open Payments shows 8 general payments to Ashley Mason from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $76.
General payments to Ashley Mason by program year, 2024 to 2025
Companies that paid Ashley Mason the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Ashley Meredith Mason is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Ashley Meredith Mason's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Ashley Meredith Mason
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ashley Meredith Mason's NPI number?
Ashley Meredith Mason's NPI number is 1629495890. It was assigned on March 25, 2014, and it is active in the NPI Registry.
What does Ashley Meredith Mason specialize in?
Ashley Meredith Mason is a physician assistant in Fremont, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Ashley Meredith Mason practice?
Ashley Mason practices at 40910 Fremont Boulevard, Fremont, CA 94538. Ashley Mason's primary practice is Irvington Dave Clinic in Fremont, California. Dmand AI also links Ashley Mason to 1 community health center.
What is Ashley Meredith Mason's office phone number?
The practice phone on file for Ashley Mason is (510) 252-6810.
What is Ashley Meredith Mason's medical license number?
Ashley Mason holds California license 51515.
Which hospitals is Ashley Meredith Mason affiliated with?
Ashley Mason is affiliated with Santa Clara Valley Medical Center.
What medical group is Ashley Meredith Mason part of?
Ashley Mason is linked to Bay Area Community Health.
Does Ashley Meredith Mason accept Medicare?
Yes. CMS lists Ashley Mason as accepting Medicare assignment.
Is Ashley Meredith Mason board certified?
Yes. Ashley Mason is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What drugs does Ashley Meredith Mason prescribe most?
In 2024 Medicare Part D data, Ashley Mason's most prescribed drugs by claims were Metformin HCl, Amlodipine Besylate and Atorvastatin Calcium.
Has Ashley Meredith Mason received payments from drug or device companies?
CMS Open Payments shows $166 in general payments to Ashley Mason from 4 companies from 2024 to 2025. The largest total came from Novo Nordisk Inc.
How long has Ashley Meredith Mason been practicing?
Ashley Mason graduated from medical school in 2013, 13 years ago.
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