Dr. Dena Marie Williams, DO
- Medicare services, 2024
- 287
- Medicare patients, 2024
- 139
- Part D claims, 2024
- 24
- Hospital affiliations
- 1
- Industry payments
- $756
- Practice address
- 101 Manning Drive, Chapel Hill, NC 27514
- Practice phone
- Call (919) 966-4141
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Williams' professional email, personal email and mobile number
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Dr. Dena Marie Williams is a neurologist in Chapel Hill, North Carolina
Dr. Williams practices at UNC Hospitals in Chapel Hill, North Carolina, part of University of North Carolina Health Care System.
Dr. Williams' NPI, 1780079376, was assigned on April 1, 2015. Dr. Williams graduated from Philadelphia College of Osteopathic Medicine in 2015. Dr. Williams holds North Carolina license 2019-00693.
- NPI
- 1780079376NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850602376
- NPI enumeration date
- April 1, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (919) 966-4141
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Dena Marie Williams practices at UNC Hospitals in Chapel Hill, North Carolina
Dr. Williams' primary practice is UNC Hospitals, at 101 Manning Drive, Chapel Hill, NC 27514 in Orange County. The practice phone is (919) 966-4141.
- UNC Hospitals101 Manning Drive, Chapel Hill, NC 27514 · Orange CountyPhone(919) 966-4141
Source: Dmand AI Affiliation Data
Dr. Dena Marie Williams is affiliated with 3 sites of care and 1 medical group
Dr. Williams' primary practice is UNC Hospitals in Chapel Hill, North Carolina, part of University of North Carolina Health Care System. The medical group on file is UNC Faculty Physicians. Dmand AI also links Dr. Williams to 1 more group practice or clinic and 1 therapy and rehab clinic, 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. Dena Marie Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UNC Hospitals | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Dena Marie Williams is one of 543 neurologists in North Carolina
Neurology is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Williams' licenses on file in 2 states: North Carolina and New Jersey.
Specialties and state licenses
- Neurology, North CarolinaPrimary
- Vascular neurology, New Jersey
Neurologists near Dr. Williams
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. Dena Marie Williams billed Medicare for 287 services in 2024
CMS data shows 287 Medicare services from Dr. Williams across 6 procedure codes in 2024, for 139 Medicare patients. Medicare paid $23,137 for them.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2462024: 28717%
Where Dr. Williams' Medicare services took place, 2024
- In an office145%
- In a facility27395%
Dr. Williams compared with the North Carolina median for neurologists, 2024
- Dr. Williams
- North Carolina median
- Medicare services
- 287vs 35018% below
- Medicare patients
- 139vs 18625% below
- Part D claims
- 12vs 55098% below
Medians across 528 neurologists in North Carolina with Dmand AI profiles that report each measure.
Dr. Williams' 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. Dena Marie Williams treated 139 Medicare patients in 2024, average age 76
CMS counts 139 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 46 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 73, with 55% women.
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women7050%
- Men6950%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA75%
- Arthritis47%
- Chronic kidney disease42%
- Diabetes38%
- Ischemic heart disease35%
- Mood disorders35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Dena Marie Williams wrote 24 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 24 Medicare Part D claims. 75% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $112 in total drug cost. In 2021, CMS named 51 claims across 2 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic18 claims75%
- Brand-name and other6 claims25%
Dr. Williams' 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: 512022: 1276%
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
How Dr. Dena Marie Williams takes part in Medicare
Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Dena Marie Williams received $756 in industry payments from 2017 to 2025
CMS Open Payments shows 17 general payments to Dr. Williams from 11 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Biohaven Pharmaceuticals, Inc. paid the most, $346.
General payments to Dr. Williams by program year, 2017 to 2025
Companies that paid Dr. Williams the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Dena Marie Williams graduated from Philadelphia College of Osteopathic Medicine
Dr. Williams graduated from Philadelphia College of Osteopathic Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Dena Marie 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 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)Medicare Part D Prescribers - by Provider (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) |
| 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. Dena Marie 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 Dr. Dena Marie Williams' NPI number?
Dr. Dena Marie Williams' NPI number is 1780079376. It was assigned on April 1, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Dena Marie Williams?
Dr. Dena Marie Williams is a neurologist in Chapel Hill, North Carolina. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Dena Marie Williams practice?
Dr. Williams practices at 101 Manning Drive, Chapel Hill, NC 27514. Dr. Williams' primary practice is UNC Hospitals in Chapel Hill, North Carolina, part of University of North Carolina Health Care System. Dmand AI also links Dr. Williams to 1 group practice or clinic and 1 therapy and rehab clinic.
What is Dr. Dena Marie Williams' office phone number?
The practice phone on file for Dr. Williams is (919) 966-4141.
What is Dr. Dena Marie Williams' medical license number?
Dr. Williams holds North Carolina license 2019-00693, one of the licenses on file in 2 states.
Which states has Dr. Dena Marie Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in North Carolina and New Jersey.
Which hospitals is Dr. Dena Marie Williams affiliated with?
Dr. Williams practices at UNC Hospitals in Chapel Hill, North Carolina.
What medical group is Dr. Dena Marie Williams part of?
Dr. Williams is linked to UNC Faculty Physicians.
Does Dr. Dena Marie Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 287 services in 2024, and Dr. Williams accepts Medicare assignment.
How many Medicare patients does Dr. Dena Marie Williams see?
CMS counts 139 Medicare patients who saw Dr. Williams in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does Dr. Dena Marie Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
Where did Dr. Dena Marie Williams go to medical school?
Dr. Williams graduated from Philadelphia College of Osteopathic Medicine in 2015.
What drugs does Dr. Dena Marie Williams prescribe most?
In 2022 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Donepezil HCl.
Has Dr. Dena Marie Williams received payments from drug or device companies?
CMS Open Payments shows $756 in general payments to Dr. Williams from 11 companies from 2017 to 2025. The largest total came from Biohaven Pharmaceuticals, Inc.
How long has Dr. Dena Marie Williams been practicing?
Dr. Williams graduated from medical school in 2015, 11 years ago.
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