Dr. Kenneth Grant Mason, MD
- Medicare services, 2023
- 135
- Part D claims, 2024
- 12
- Industry payments
- $98
- Affiliated sites
- 3
- Medical groups
- 4
- Practice address
- 400 Campus Blvd., Winchester, VA 22601
- Practice phone
- Call (540) 536-5466
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Valley Physician Enterprise - Winchester (400 Campus Blvd)
Surgical practice · Winchester, Virginia
Find Dr. 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.
Dr. Kenneth Grant Mason is a general surgeon in Arlington, Virginia
Dr. Mason practices at Valley Physician Enterprise - Winchester (400 Campus Blvd) in Winchester, Virginia.
Dr. Mason's NPI, 1336174705, was assigned on July 12, 2006. Dr. Mason graduated from Howard University College of Medicine in 1977. Dr. Mason holds Virginia license 0101035681.
- NPI
- 1336174705NPI Registry (opens in a new tab)
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Practice phone
- (540) 536-5466
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kenneth Grant Mason practices in Winchester and Arlington
Dr. Mason's primary practice is Valley Physician Enterprise - Winchester (400 Campus Blvd), at 400 Campus Blvd., Winchester, VA 22601. The practice phone is (540) 536-5466. The NPI Registry lists Dr. Mason's practice address as 1701 N George Mason Dr, Arlington, VA 22205.
- Valley Physician Enterprise - Winchester (400 Campus Blvd)Primary400 Campus Blvd., Winchester, VA 22601Phone(540) 536-5466
- NPI Registry address1701 N George Mason Dr, Arlington, VA 22205 · Arlington CountyPhone(540) 536-5466
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Kenneth Grant Mason is affiliated with 3 sites of care and 4 medical groups
Dr. Mason's primary practice is Valley Physician Enterprise - Winchester (400 Campus Blvd) in Winchester, Virginia. The medical group on file is Valley Health. Dmand AI also links Dr. Mason to 3 more medical groups and 2 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Kenneth Grant Mason's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mason practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Valley Physician Enterprise - Winchester (400 Campus Blvd) | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kenneth Grant Mason is one of 739 general surgeons in Virginia
Surgery is Dr. Mason's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Mason is licensed in Virginia.
Specialties and state licenses
- Surgery, VirginiaPrimary
General surgeons near Dr. Mason
Counts of general surgeons 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
Dr. Kenneth Grant Mason billed Medicare for 135 services in 2023
CMS data shows 135 Medicare services from Dr. Mason across 7 procedure codes in 2023. Medicare paid $16,375 for them.
Dr. Mason's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1022023: 8616%
- Surgery
- 2022: 02023: 36
- Imaging
- 2022: 02023: 13
Where Dr. Mason's Medicare services took place, 2023
- In an office8664%
- In a facility4936%
Dr. Mason compared with the Virginia median for general surgeons, 2023
- Dr. Mason
- Virginia median
- Medicare services
- 135vs 19029% below
- Part D claims
- 17vs 3450% below
Medians across 667 general surgeons in Virginia with Dmand AI profiles that report each measure.
Dr. Mason's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mason and other general surgeons in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kenneth Grant Mason's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Mason's median patient age at 65, with 90% women.
Dr. 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 65
Patient panel by sex, all payers
- Women90%
- Men10%
Source: Dmand AI Patient Panel Data
Dr. Kenneth Grant Mason wrote 12 Medicare Part D claims in 2024
In 2024, Dr. Mason wrote 12 Medicare Part D claims. 100% of them were for generic drugs. They cover 1 drug, with $48 in total drug cost. In 2021, CMS named 29 claims across 2 drugs.
Dr. Mason's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 292022: 1741%
Drugs named by CMS: 1 in 2022, 2 in 2021.
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
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Dr. Kenneth Grant Mason received $98 in industry payments from 2023 to 2025
CMS Open Payments shows 2 general payments to Dr. Mason from 2 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $62.
General payments to Dr. Mason by program year, 2023 to 2025
Companies that paid Dr. Mason the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Kenneth Grant Mason graduated from Howard University College of Medicine
Dr. Mason graduated from Howard University College of Medicine in 1977.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Kenneth Grant 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| 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 Dr. Kenneth Grant 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 Dr. Kenneth Grant Mason's NPI number?
Dr. Kenneth Grant Mason's NPI number is 1336174705. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Kenneth Grant Mason?
Dr. Kenneth Grant Mason is a general surgeon in Arlington, Virginia. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Kenneth Grant Mason practice?
Dr. Mason practices at 400 Campus Blvd., Winchester, VA 22601. Dr. Mason also practices at 1701 N George Mason Dr, Arlington, VA 22205. Dr. Mason's primary practice is Valley Physician Enterprise - Winchester (400 Campus Blvd) in Winchester, Virginia. Dmand AI also links Dr. Mason to 3 medical groups and 2 group practices and clinics.
What is Dr. Kenneth Grant Mason's office phone number?
The practice phone on file for Dr. Mason is (540) 536-5466.
What is Dr. Kenneth Grant Mason's medical license number?
Dr. Mason holds Virginia license 0101035681.
What medical group is Dr. Kenneth Grant Mason part of?
Dr. Mason is linked to Valley Health. Dmand AI links Dr. Mason to 3 more medical groups.
Does Dr. Kenneth Grant Mason accept Medicare?
Yes. CMS data shows Dr. Mason billed Medicare for 135 services in 2023.
What services does Dr. Kenneth Grant Mason bill to Medicare?
In 2023, Dr. Mason's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and office visit, new patient (99204).
Where did Dr. Kenneth Grant Mason go to medical school?
Dr. Mason graduated from Howard University College of Medicine in 1977.
What drugs does Dr. Kenneth Grant Mason prescribe most?
In 2022 Medicare Part D data, Dr. Mason's most prescribed drugs by claims were Oxycodone-Acetaminophen.
Has Dr. Kenneth Grant Mason received payments from drug or device companies?
CMS Open Payments shows $98 in general payments to Dr. Mason from 2 companies from 2023 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Kenneth Grant Mason been practicing?
Dr. Mason graduated from medical school in 1977, 49 years ago.
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