Dena Williams, D.O.
NPI 1780079376 · Neurology Physician · Chapel Hill, NC
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dena Williams, D.O. is a Neurology Physician provider in Chapel Hill, NC (NPI 1780079376).
Provider details
- NPI number
- 1780079376
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 25MB10756800 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
287 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 117 | $108 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 86 | $73 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 35 | $153 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 18 | $76 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 17 | $107 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$57 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-01
- Last updated
- 2022-05-13
- Certified
- 2022-05-13
Frequently asked questions
- What is Dena Williams's NPI number?
- Dena Williams's National Provider Identifier (NPI) is 1780079376, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dena Williams's specialty?
- Dena Williams is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Dena Williams located?
- Dena Williams's practice location on file with NPPES is 170 Manning Drive, Chapel Hill, NC 27599-1438.
- What is Dena Williams's phone number?
- The practice phone number listed in the NPPES registry for Dena Williams is (984) 974-4401.
- Does Dena Williams accept Medicare?
- Dena Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dena Williams's NPI active?
- Yes — Dena Williams's NPI (1780079376) is active in the NPPES registry as of the last update on 2022-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.