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KENNETH GRANT MASON M.D.
NPI 1336174705
Surgery in Winchester, VA

Active since July 12, 2006PECOS Enrolled
400 CAMPUS BLVD STE 220, WINCHESTER, VA 22601(540) 536-5466(540) 536-5475 Get Directions Write a Review

NPPES record last updated: March 2, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 2, 2021, Nov 13, 2019 (2 updates tracked since 2019).

About Kenneth Grant Mason M.d. NPPES

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

KENNETH GRANT MASON M.D. (NPI 1336174705) is an individual surgery provider in Winchester, Virginia, licensed in Virginia (0101035681) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1336174705
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameKENNETH GRANT MASONCredential: M.D.
Location Address400 CAMPUS BLVD STE 220Winchester, VA 22601-6906
Mailing Address220 Campus Blvd Ste 100Winchester, VA 22601-2888 · (540) 536-5100 · Fax (540) 536-0235
Phone(540) 536-5466
Fax(540) 536-5475
Sole ProprietorNo
Enumeration DateJuly 12, 2006
Last NPPES UpdateMarch 2, 20212 updates tracked since enumeration
NPPES CertifiedMarch 2, 2021
✔ NPI 1336174705 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in VA · 0101035681
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
400 CAMPUS BLVD STE 220, Winchester, VA 22601
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kenneth Grant Mason M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

4

Medicare enrollment records show Kenneth Mason reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Winchester Medical Center
0.2 mi
Pulmonary Disease
190 CAMPUS BLVD STE 410
Winchester, VA 22601
  • Reassigned Medicare billing, Virginia enrollment
  • 756 clinicians in this Medicare group
NPI 1053814129 (540) 536-5980
Valley Physician Enterprise, Inc.
0.3 mi
Ophthalmology
190 CAMPUS BLVD STE 210
Winchester, VA 22601
  • Reassigned Medicare billing, Virginia enrollment
  • 386 clinicians in this Medicare group
NPI 1053800961 (540) 536-5820
Shenandoah Memorial Hospital, Inc.
16 mi
Family Medicine
33699 OLD VALLEY PIKE STE D
Strasburg, VA 22657
  • Reassigned Medicare billing, Virginia enrollment
  • Also billed through NPI 1407357015 (Virginia)
  • 416 clinicians in this Medicare group
NPI 1710494331 (540) 459-1410
Warren Memorial Hospital, Inc.
16 mi
Rural Health
67 RIVERTON COMMONS DR
Front Royal, VA 22630
  • Reassigned Medicare billing, Virginia enrollment
  • 367 clinicians in this Medicare group
NPI 1417447871 (540) 635-0848

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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

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

SAMANTHA JANE HANSON P.A.
Physician Assistant
400 CAMPUS BLVD STE 220
WINCHESTER, VA 22601
Winchester City (540) 536-5466

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 Kenneth Mason's NPI number?

The NPI number for Kenneth Mason is 1336174705. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is Kenneth Mason located?

Kenneth Mason practices at 400 Campus Blvd Ste 220, Winchester, VA 22601. The listed phone number is (540) 536-5466.

What is Kenneth Mason's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Kenneth Mason enrolled in Medicare?

Yes. Kenneth Mason is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kenneth Mason's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kenneth Mason reassigns Medicare benefits to 4 organizations: Winchester Medical Center (Winchester, VA), Valley Physician Enterprise, Inc. (Winchester, VA), Shenandoah Memorial Hospital, Inc. (Strasburg, VA) and Warren Memorial Hospital, Inc. (Front Royal, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kenneth Mason's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kenneth Mason accept?

Health plans from CareSource list Kenneth 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.

When was this NPI record last updated?

The NPPES record for Kenneth Mason was last updated on March 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.