Mark Edwin Williams, PA-C
- Medicare patients, 2024
- 439
- Part D claims, 2024
- 212
- Hospital affiliations
- 2
- Industry payments
- $24
- Medical groups
- 7
- Practice address
- 3000 Coliseum Drive, Hampton, VA 23666
- Practice phone
- Call (757) 827-2545
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Mark Williams' 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.
Mark Edwin Williams is a physician assistant in Hampton, Virginia
Mark Williams practices at Sentara CarePlex Hospital in Hampton, Virginia, part of Sentara Health.
Mark Williams' NPI, 1861649642, was assigned on August 22, 2008. Mark Williams holds Maryland license C0003723.
- NPI
- 1861649642NPI Registry (opens in a new tab)
- NPI enumeration date
- August 22, 2008
- NPI status
- Active
- Practice phone
- (757) 827-2545
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Mark Edwin Williams practices at Sentara CarePlex Hospital in Hampton, Virginia
Mark Williams' primary practice is Sentara CarePlex Hospital, at 3000 Coliseum Drive, Hampton, VA 23666 in Hampton City. The practice phone is (757) 827-2545.
- Sentara CarePlex Hospital3000 Coliseum Drive, Hampton, VA 23666 · Hampton CityPhone(757) 827-2545
Source: Dmand AI Affiliation Data
Mark Edwin Williams is affiliated with 5 sites of care and 7 medical groups
Mark Williams' primary practice is Sentara CarePlex Hospital in Hampton, Virginia, part of Sentara Health. Mark Williams is also affiliated with University of Maryland Shore Medical Center at Chestertown. The medical group on file is Emergency Medicine Physicians (EMP). Dmand AI also links Mark Williams to 6 more medical groups, 1 clinical lab, 1 hospital outpatient department and 1 ambulatory surgery center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mark Edwin Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Williams practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sentara CarePlex Hospital | Available with a free account |
| +4 more sites and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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.
Mark Edwin Williams is one of 759 physician assistants in Virginia
Medical is Mark Williams' primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Mark Williams is licensed in Maryland.
Specialties and state licenses
- Medical physician assistant, MarylandPrimary
Physician assistants near Mark Williams
Counts of physician assistants 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
Mark Edwin Williams treated 439 Medicare patients in 2024, average age 74
CMS counts 439 Medicare patients who saw Mark Williams in 2024. The largest group is 75 to 84, with 162 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 1.74, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mark Williams' median patient age at 41, with 60% women.
Mark Williams' Medicare patients by age, 2024
Mark Williams' Medicare patients by sex, 2024
- Women24255%
- Men19745%
Chronic conditions among Mark Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Diabetes47%
- Chronic kidney disease35%
- Anxiety33%
- Ischemic heart disease32%
- Mood disorders32%
Share of Medicare patients with each condition. A patient can have several.
Mark Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark Edwin Williams wrote 212 Medicare Part D claims in 2024
In 2024, Mark Williams wrote 212 Medicare Part D claims for 164 patients. 96% of them were for generic drugs.
Mark Williams' Part D claims by kind of drug, 2024
- Generic203 claims96%
- Brand-name and other9 claims4%
Drug classes CMS tracks in Mark Williams' Part D claims, 2024
- Opioids9%19 of 212 claims
- Antibiotics28%59 of 212 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Mark Edwin Williams received $24 in industry payments in 2025
CMS Open Payments shows 1 general payment to Mark Williams from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Inspire Medical Systems, Inc. paid the most, $24.
Companies that paid Mark Williams the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Mark Edwin Williams'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 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 (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 Mark Edwin Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Edwin Williams' NPI number?
Mark Edwin Williams' NPI number is 1861649642. It was assigned on August 22, 2008, and it is active in the NPI Registry.
What does Mark Edwin Williams specialize in?
Mark Edwin Williams is a physician assistant in Hampton, Virginia. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Mark Edwin Williams practice?
Mark Williams practices at 3000 Coliseum Drive, Hampton, VA 23666. Mark Williams' primary practice is Sentara CarePlex Hospital in Hampton, Virginia, part of Sentara Health. Dmand AI also links Mark Williams to 6 medical groups, 1 clinical lab, 1 hospital outpatient department and 1 ambulatory surgery center.
What is Mark Edwin Williams' office phone number?
The practice phone on file for Mark Williams is (757) 827-2545.
What is Mark Edwin Williams' medical license number?
Mark Williams holds Maryland license C0003723.
Which hospitals is Mark Edwin Williams affiliated with?
Mark Williams practices at Sentara CarePlex Hospital in Hampton, Virginia. Mark Williams is also affiliated with University of Maryland Shore Medical Center at Chestertown.
What medical group is Mark Edwin Williams part of?
Mark Williams is linked to Emergency Medicine Physicians (EMP). Dmand AI links Mark Williams to 6 more medical groups.
How many Medicare patients does Mark Edwin Williams see?
CMS counts 439 Medicare patients who saw Mark Williams in 2024, with an average age of 74.
Has Mark Edwin Williams received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Mark Williams from 1 company from 2025 to 2025. The largest total came from Inspire Medical Systems, Inc.
How long has Mark Edwin Williams been practicing?
Mark Williams graduated from medical school in 2006, 20 years ago.
Selling to medical practices?
See physician assistants in Virginia by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card