Sylas Mason
NPI 1467103366 · Physician Assistant · Winchester, VA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sylas Mason is a Physician Assistant provider in Winchester, VA (NPI 1467103366).
Provider details
- NPI number
- 1467103366
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0110010607 (VA)
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 tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Tartrate | 17 | 13 |
| Oxycodone Hcl | 14 | 14 |
| Furosemide | 11 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1840 Amherst StWinchester, VA 22601-2808Phone: (540) 536-8000Fax: (540) 536-7780
Registry dates
- Enumerated
- 2022-01-12
- Last updated
- 2025-03-05
- Certified
- 2025-03-04
Frequently asked questions
- What is Sylas Mason's NPI number?
- Sylas Mason's National Provider Identifier (NPI) is 1467103366, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sylas Mason's specialty?
- Sylas Mason is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sylas Mason located?
- Sylas Mason's practice location on file with NPPES is 1880 Amherst Street, Winchester, VA 22601.
- What is Sylas Mason's phone number?
- The practice phone number listed in the NPPES registry for Sylas Mason is (540) 536-6721.
- Does Sylas Mason accept Medicare?
- Sylas Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sylas Mason's NPI active?
- Yes — Sylas Mason's NPI (1467103366) is active in the NPPES registry as of the last update on 2025-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.