Sierra Williams-Barnhart, APRN
- Medicare patients, 2024
- 95
- Part D claims, 2024
- 189
- Hospital affiliations
- 3
- Industry payments
- $301
- Medical groups
- 2
- Practice address
- 303 N Clyde Morris Blvd, Daytona Beach, FL 32114
- Practice phone
- Call (386) 254-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Sierra Williams-Barnhart'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.
Sierra Williams-Barnhart is a family nurse practitioner in Daytona Beach, Florida
Sierra Williams-Barnhart practices at Halifax Health Medical Center of Daytona Beach in Daytona Beach, Florida, part of Halifax Health District.
Sierra Williams-Barnhart's NPI, 1114589371, was assigned on July 8, 2019. Sierra Williams-Barnhart graduated from Indiana University School of Medicine in 2018. Sierra Williams-Barnhart holds Florida license APRN11014177.
- NPI
- 1114589371NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931430451
- NPI enumeration date
- July 8, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (386) 254-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Sierra Williams-Barnhart practices at Halifax Health Medical Center of Daytona Beach in Daytona Beach, Florida
Sierra Williams-Barnhart's primary practice is Halifax Health Medical Center of Daytona Beach, at 303 N Clyde Morris Blvd, Daytona Beach, FL 32114 in Volusia County. The practice phone is (386) 254-4000.
- Halifax Health Medical Center of Daytona Beach303 N Clyde Morris Blvd, Daytona Beach, FL 32114 · Volusia CountyPhone(386) 254-4000
Source: Dmand AI Affiliation Data
Sierra Williams-Barnhart is affiliated with 6 sites of care and 2 medical groups
Sierra Williams-Barnhart's primary practice is Halifax Health Medical Center of Daytona Beach in Daytona Beach, Florida, part of Halifax Health District. Sierra Williams-Barnhart is also affiliated with AdventHealth Palm Coast. The medical group on file is Halifax Health. Dmand AI also links Sierra Williams-Barnhart to 1 more hospital, 2 group practices and clinics, 1 behavioral health center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Sierra Williams-Barnhart's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Sierra Williams-Barnhart practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Halifax Health Medical Center of Daytona Beach | Available with a free account |
| +5 more sites and 1 medical group | 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 Halifax Health District and 6.2K+ hospitals, with verified contacts in the same login.
Sierra Williams-Barnhart is one of 14,175 family nurse practitioners in Florida
Family is Sierra Williams-Barnhart's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Sierra Williams-Barnhart is licensed in Florida.
Specialties and state licenses
- Family nurse practitioner, FloridaPrimary
Family nurse practitioners near Sierra Williams-Barnhart
Counts of family nurse practitioners 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
Sierra Williams-Barnhart treated 95 Medicare patients in 2024, average age 74
CMS counts 95 Medicare patients who saw Sierra Williams-Barnhart in 2024. The largest group is 75 to 84, with 44 patients. 75% of them have high cholesterol, and 58% have high blood pressure. Their average risk score is 1.14, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Sierra Williams-Barnhart's median patient age at 69, with 99% women.
Sierra Williams-Barnhart's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Sierra Williams-Barnhart's Medicare patients, 2024
- High cholesterol75%
- High blood pressure58%
- Cancer56%
- Arthritis44%
- Anxiety27%
- Diabetes25%
- Depression22%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Sierra Williams-Barnhart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women99%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Sierra Williams-Barnhart wrote 189 Medicare Part D claims in 2024
In 2024, Sierra Williams-Barnhart wrote 189 Medicare Part D claims for 80 patients. 91% of them were for generic drugs.
Sierra Williams-Barnhart's Part D claims by kind of drug, 2024
- Generic172 claims91%
- Brand-name17 claims9%
Drug classes CMS tracks in Sierra Williams-Barnhart's Part D claims, 2024
- Antibiotics9%17 of 189 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
How Sierra Williams-Barnhart takes part in Medicare
Sierra Williams-Barnhart 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)
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.
Sierra Williams-Barnhart received $301 in industry payments in 2025
CMS Open Payments shows 13 general payments to Sierra Williams-Barnhart from 8 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Daiichi Sankyo Inc. paid the most, $70.
Companies that paid Sierra Williams-Barnhart the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sierra Williams-Barnhart graduated from Indiana University School of Medicine
Sierra Williams-Barnhart graduated from Indiana University School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Sierra Williams-Barnhart'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) |
| 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 Sierra Williams-Barnhart
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Sierra Williams-Barnhart's NPI number?
Sierra Williams-Barnhart's NPI number is 1114589371. It was assigned on July 8, 2019, and it is active in the NPI Registry.
What does Sierra Williams-Barnhart specialize in?
Sierra Williams-Barnhart is a family nurse practitioner in Daytona Beach, Florida. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Sierra Williams-Barnhart practice?
Sierra Williams-Barnhart practices at 303 N Clyde Morris Blvd, Daytona Beach, FL 32114. Sierra Williams-Barnhart's primary practice is Halifax Health Medical Center of Daytona Beach in Daytona Beach, Florida, part of Halifax Health District. Dmand AI also links Sierra Williams-Barnhart to 1 hospital, 2 group practices and clinics, 1 behavioral health center and 1 medical group.
What is Sierra Williams-Barnhart's office phone number?
The practice phone on file for Sierra Williams-Barnhart is (386) 254-4000.
What is Sierra Williams-Barnhart's medical license number?
Sierra Williams-Barnhart holds Florida license APRN11014177.
Which hospitals is Sierra Williams-Barnhart affiliated with?
Sierra Williams-Barnhart practices at Halifax Health Medical Center of Daytona Beach in Daytona Beach, Florida. Sierra Williams-Barnhart is also affiliated with AdventHealth Palm Coast. Dmand AI links Sierra Williams-Barnhart to 1 more hospital.
What medical group is Sierra Williams-Barnhart part of?
Sierra Williams-Barnhart is linked to Halifax Health. Dmand AI links Sierra Williams-Barnhart to 1 more medical group.
Does Sierra Williams-Barnhart accept Medicare?
Yes. CMS lists Sierra Williams-Barnhart as accepting Medicare assignment.
How many Medicare patients does Sierra Williams-Barnhart see?
CMS counts 95 Medicare patients who saw Sierra Williams-Barnhart in 2024, with an average age of 74.
Where did Sierra Williams-Barnhart go to medical school?
Sierra Williams-Barnhart graduated from Indiana University School of Medicine in 2018.
Has Sierra Williams-Barnhart received payments from drug or device companies?
CMS Open Payments shows $301 in general payments to Sierra Williams-Barnhart from 8 companies from 2025 to 2025. The largest total came from Daiichi Sankyo Inc.
How long has Sierra Williams-Barnhart been practicing?
Sierra Williams-Barnhart graduated from medical school in 2018, 8 years ago.
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