Dr. Mark Stephen Mason Jr., MD
- Medicare services, 2024
- 228
- Medicare patients, 2024
- 148
- Part D claims, 2022
- 69
- Hospital affiliations
- 3
- Industry payments
- $349
- Practice address
- 500 Martha Jefferson Drive, Charlottesville, VA 22911
- Practice phone
- Call (434) 654-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mason's professional email, personal email and mobile number
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Dr. Mark Stephen Mason Jr. is a neurologist in Charlottesville, Virginia
Dr. Mason practices at Sentara Martha Jefferson Hospital in Charlottesville, Virginia, part of Sentara Health.
Dr. Mason's NPI, 1366886921, was assigned on April 24, 2013. Dr. Mason holds Virginia license 0101262661.
- NPI
- 1366886921NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991078008
- NPI enumeration date
- April 24, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (434) 654-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Stephen Mason Jr. practices at Sentara Martha Jefferson Hospital in Charlottesville, Virginia
Dr. Mason's primary practice is Sentara Martha Jefferson Hospital, at 500 Martha Jefferson Drive, Charlottesville, VA 22911 in Albemarle County. The practice phone is (434) 654-7000.
- Sentara Martha Jefferson Hospital500 Martha Jefferson Drive, Charlottesville, VA 22911 · Albemarle CountyPhone(434) 654-7000
Source: Dmand AI Affiliation Data
Dr. Mark Stephen Mason Jr. is affiliated with 4 sites of care and 1 medical group
Dr. Mason's primary practice is Sentara Martha Jefferson Hospital in Charlottesville, Virginia, part of Sentara Health. Dr. Mason is also affiliated with Sentara CarePlex Hospital. The medical group on file is Sentara Martha Jefferson Internal Medicine. Dmand AI also links Dr. Mason to 1 more hospital and 1 hospital outpatient department, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Stephen Mason Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mason practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sentara Martha Jefferson Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Sentara Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark Stephen Mason Jr. is one of 516 neurologists in Virginia
Neurology is Dr. Mason's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Mason is licensed in Virginia.
Specialties and state licenses
- Neurology, VirginiaPrimary
Neurologists near Dr. Mason
Counts of neurologists 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. Mark Stephen Mason Jr. billed Medicare for 228 services in 2024
CMS data shows 228 Medicare services from Dr. Mason across 3 procedure codes in 2024, for 148 Medicare patients. Medicare paid $29,092 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mason's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2782024: 22818%
Dr. Mason compared with the Virginia median for neurologists, 2024
- Dr. Mason
- Virginia median
- Medicare services
- 228vs 42947% below
- Medicare patients
- 148vs 24640% below
- Part D claims
- 69vs 39082% below
Medians across 489 neurologists in Virginia with Dmand AI profiles that report each measure.
Dr. Mason's most billed Medicare procedure codes, 2024
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Stephen Mason Jr. treated 148 Medicare patients in 2024, average age 78
CMS counts 148 Medicare patients who saw Dr. Mason in 2024. The largest group is 75 to 84, with 62 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mason's median patient age at 63, with 53% women.
Dr. Mason's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mason's Medicare patients by sex, 2024
- Women7349%
- Men7551%
Chronic conditions among Dr. Mason's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA70%
- Arthritis58%
- Ischemic heart disease57%
- Mood disorders45%
- Depression42%
- Anxiety40%
Share of Medicare patients with each condition. A patient can have several.
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 63
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Stephen Mason Jr. wrote 69 Medicare Part D claims in 2022
In 2022, Dr. Mason wrote 69 Medicare Part D claims. They cover 4 drugs, with $2,316 in total drug cost. In 2021, CMS named 806 claims across 22 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: 8062022: 6991%
Drugs named by CMS: 4 in 2022, 22 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Mark Stephen Mason Jr. offers telehealth to Medicare patients
Dr. Mason accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mason as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mark Stephen Mason Jr. received $349 in industry payments from 2018 to 2024
CMS Open Payments shows 3 general payments to Dr. Mason from 3 drug and device companies from 2018 to 2024. Food and beverage make up the largest share, 71% of the total. Medtronic, Inc. paid the most, $139.
General payments to Dr. Mason by program year, 2018 to 2024
General payments to Dr. Mason by kind, 2018 to 2024
- Food and beverage$24971%
- Education$10029%
Companies that paid Dr. Mason the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark Stephen Mason Jr.'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Mark Stephen Mason Jr.
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. Mark Stephen Mason Jr.'s NPI number?
Dr. Mark Stephen Mason Jr.'s NPI number is 1366886921. It was assigned on April 24, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Stephen Mason Jr.?
Dr. Mark Stephen Mason Jr. is a neurologist in Charlottesville, Virginia. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Mark Stephen Mason Jr. practice?
Dr. Mason practices at 500 Martha Jefferson Drive, Charlottesville, VA 22911. Dr. Mason's primary practice is Sentara Martha Jefferson Hospital in Charlottesville, Virginia, part of Sentara Health. Dmand AI also links Dr. Mason to 1 hospital and 1 hospital outpatient department.
What is Dr. Mark Stephen Mason Jr.'s office phone number?
The practice phone on file for Dr. Mason is (434) 654-7000.
What is Dr. Mark Stephen Mason Jr.'s medical license number?
Dr. Mason holds Virginia license 0101262661.
Which hospitals is Dr. Mark Stephen Mason Jr. affiliated with?
Dr. Mason practices at Sentara Martha Jefferson Hospital in Charlottesville, Virginia. Dr. Mason is also affiliated with Sentara CarePlex Hospital. Dmand AI links Dr. Mason to 1 more hospital.
What medical group is Dr. Mark Stephen Mason Jr. part of?
Dr. Mason is linked to Sentara Martha Jefferson Internal Medicine.
Does Dr. Mark Stephen Mason Jr. accept Medicare?
Yes. CMS data shows Dr. Mason billed Medicare for 228 services in 2024, and Dr. Mason accepts Medicare assignment.
Does Dr. Mark Stephen Mason Jr. offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mason as offering telehealth services.
How many Medicare patients does Dr. Mark Stephen Mason Jr. see?
CMS counts 148 Medicare patients who saw Dr. Mason in 2024, with an average age of 78.
Show 4 more questionsShow fewer questions
What services does Dr. Mark Stephen Mason Jr. bill to Medicare?
In 2024, Dr. Mason's most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99233) and critical care (99291).
What drugs does Dr. Mark Stephen Mason Jr. prescribe most?
In 2022 Medicare Part D data, Dr. Mason's most prescribed drugs by claims were Levetiracetam, Atorvastatin Calcium and Memantine HCl.
Has Dr. Mark Stephen Mason Jr. received payments from drug or device companies?
CMS Open Payments shows $349 in general payments to Dr. Mason from 3 companies from 2018 to 2024. The largest total came from Medtronic, Inc.
How long has Dr. Mark Stephen Mason Jr. been practicing?
Dr. Mason graduated from medical school in 2013, 13 years ago.
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