SYLAS MASON
NPI 1467103366
Physician Assistant in Winchester, VA

Active since January 12, 2022PECOS EnrolledAccepts Medicare Assignment
1880 AMHERST STREET, SUITE 310, WINCHESTER, VA 22601(540) 536-6721(540) 536-6724 Get Directions Write a Review

NPPES record last updated: March 5, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Mar 5, 2025, Jun 20, 2023, May 30, 2023 and 1 more (4 updates tracked since 2022).

About Sylas Mason NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SYLAS MASON (NPI 1467103366) is an individual physician assistant in Winchester, Virginia, licensed in Virginia (0110010607) and active in the NPI registry since January 2022. He is enrolled in Medicare PECOS, is affiliated with Winchester Medical Center, and maintains a secondary practice location in Winchester.

NPPES Registry Identity

NPI1467103366
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameSYLAS MASON
Location Address1880 AMHERST STREET, SUITE 310Winchester, VA 22601
Mailing Address220 Campus Blvd Ste 320Winchester, VA 22601-2889 · (540) 536-5100 · Fax (540) 536-0235
Fax(540) 536-6724
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateJanuary 12, 2022
Last NPPES UpdateMarch 5, 20254 updates tracked since enumeration
NPPES CertifiedMarch 4, 2025
✔ NPI 1467103366 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in VA · 0110010607
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
1880 AMHERST STREET, Winchester, VA 22601

Secondary Practice Location 1

Location 11840 Amherst StWinchester, VA 22601-2808 · Phone (540) 536-8000 · Fax (540) 536-7780

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Sylas Mason is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9931569621
PECOS Enrollment IDI20250325003767
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Winchester Medical Center

Acute Care Hospitals · Winchester, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490005
Location1840 Amherst StWinchester, VA 22601 · Winchester City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.88 typical visit price
range $56.19 – $170.30
Typical copayment $21.72 (range $14.04 – $42.57)
Most-billed visit code 99203
Established Patient
$70.08 typical visit price
range $18.07 – $138.91
Typical copayment $17.52 (range $4.51 – $34.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
1880 AMHERST STREET, SUITE 100 AND SUITE 200
WINCHESTER, VA 22601
Internal Medicine (Interventional Cardiology)
1880 AMHERST STREET, SUITE 100 AND SUITE 200
WINCHESTER, VA 22601
Internal Medicine (Cardiovascular Disease)
1880 AMHERST STREET, SUITE 100 AND SUITE 200
WINCHESTER, VA 22601
Nurse Practitioner (Family)
1880 AMHERST STREET, SUITE 100 & SUITE 200
WINCHESTER, VA 22601
Physician Assistant
1880 AMHERST STREET, SUITE 300
WINCHESTER, VA 22601
Internal Medicine (Interventional Cardiology)
1880 AMHERST STREET, SUITE 100 AND SUITE 200
WINCHESTER, VA 22601
Internal Medicine (Cardiovascular Disease)
1880 AMHERST STREET, SUITE 100
WINCHESTER, VA 22601
Internal Medicine (Cardiovascular Disease)
1880 AMHERST STREET, SUITE 100 AND SUITE 200
WINCHESTER, VA 22601

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sylas Mason's NPI number?

The NPI number for Sylas Mason is 1467103366. It was assigned to this individual provider in the NPPES registry on January 12, 2022.

Where is Sylas Mason located?

Sylas Mason practices at 1880 Amherst Street Suite 310, Winchester, VA 22601. The listed phone number is (540) 536-6721.

What is Sylas Mason's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Sylas Mason enrolled in Medicare?

Yes. Sylas Mason is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Sylas Mason accept?

Health plans from CareSource list Sylas Mason as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Sylas Mason affiliated with any hospitals?

According to CMS data, Sylas Mason is affiliated with Winchester Medical Center.

When was this NPI record last updated?

The NPPES record for Sylas Mason was last updated on March 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.