Sylas Mason
Physician Assistant · Winchester, VA
Sylas Mason is a physician assistant with a practice address in Winchester, Virginia, and NPI 1467103366, issued on Jan 12, 2022. Check the license (Virginia 0110010607, as entered in NPPES) with the Virginia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sylas Mason
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 0110010607 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1880 Amherst Street, Winchester, VA 22601
- Phone
- (540) 536-6721
- Enumerated
- Jan 12, 2022
- Record last updated
- Mar 5, 2025
- Fax
- (540) 536-6724
- Medicare enrollment
- Enrolled (PECOS I20250325003767); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,408 in Virginia → Look up another NPI →
Also registered at 1880 Amherst Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lisa Behneke, PACMedical Physician Assistant1801807797
- Kaitlyn Betcher, PAMedical Physician Assistant1346980026
Verify Sylas Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Virginia board licenses this profession
Search for license 0110010607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average physician assistant in 2024
106 Medicare Part D claims for 33 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Metoprolol Tartrate17 claims
- Oxycodone Hcl14 claims
- Furosemide11 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.
2 hospitals and group practices
- Winchester Medical CenterWinchester, VA · Acute Care Hospitals4 of 5 stars
- Valley Physician Enterprise IncFront Royal, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Sylas Mason among 4,408 physician assistant records in Virginia
Sylas Mason is one of 4,408 physician assistant records with a practice address in Virginia. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 70% of them.
- NPI issued2022 · 70% of these records are older, 24% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2023 · median 2018 among the 2,885 with a school on file
- Record last updated2025 · 33% 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 Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
217 physician assistant records list a practice address in Winchester
They are 217 of the 2,762 NPPES records with a practice address in Winchester, and 4,408 physician assistant records in Virginia.
All 4,408 in Virginia → Every provider in Winchester → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jill Bethlehem, PAWinchester, VA 226011548216971
- Tammy Earhart, PA-CWinchester, VA 226011275552622
- Dondrea Garrison, PA-CWinchester, VA 226011558323253
- Alyson Humphreys, PA-CWinchester, VA 226011508874033
- Thomas Kidd, PACWinchester, VA 226011053321075
- Michael Lapp, PAWinchester, VA 226011295789469
- Tamara McDaniel, PA-CWinchester, VA 226011154349801
- Jennifer Miller, PA-CWinchester, VA 226011801828702
Common questions
What is Sylas Mason's NPI number?
Sylas Mason's National Provider Identifier (NPI) is 1467103366, issued on Jan 12, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Sylas Mason located?
The NPPES record lists a practice address at 1880 Amherst Street, Winchester, VA, 22601. Phone: (540) 536-6721. Providers update this record themselves, so call before visiting.
How can I verify Sylas Mason's license?
NPPES lists Virginia license number 0110010607, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity only.
How much does Sylas Mason prescribe under Medicare Part D?
In 2024, Sylas Mason had 106 Medicare Part D claims for 33 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.