William Hornby

  • Daytona Beach, FL
  • Physician assistant
NPI1205395274PAC ID4486982709
Part D claims, 2024
5,097
Hospital affiliations
1
Industry payments
$1,502
Medical group
1
State license
1
Practice address
301 Memorial Medical Parkway, Daytona Beach, FL 32117
Practice phone
Call (386) 231-6000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

AdventHealth Daytona Beach

Hospital · Daytona Beach, Florida

See all 3 affiliations

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William Hornby is a physician assistant in Daytona Beach, Florida

William Hornby practices at AdventHealth Daytona Beach in Daytona Beach, Florida, part of AdventHealth.

William Hornby's NPI, 1205395274, was assigned on March 18, 2019. William Hornby holds Florida license 9111805.

NPI and contact details
Medicare PAC ID
4486982709
NPI enumeration date
March 18, 2019
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(386) 231-6000
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

William Hornby practices at AdventHealth Daytona Beach in Daytona Beach, Florida

William Hornby's primary practice is AdventHealth Daytona Beach, at 301 Memorial Medical Parkway, Daytona Beach, FL 32117 in Volusia County. The practice phone is (386) 231-6000.

Source: Dmand AI Affiliation Data

William Hornby is affiliated with 2 sites of care and 1 medical group

William Hornby's primary practice is AdventHealth Daytona Beach in Daytona Beach, Florida, part of AdventHealth. The medical group on file is Afermin Primary Care PA. Dmand AI also links William Hornby to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for William Hornby

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at William Hornby's practice

Dmand AI tracks the electronic health record (EHR) system at each site where William Hornby practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
AdventHealth Daytona BeachAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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William Hornby is one of 7,899 physician assistants in Florida

Physician assistant is William Hornby's primary specialty in the NPI Registry, under taxonomy code 363A00000X. William Hornby is licensed in Florida.

Specialties and state licenses

  • Physician assistant, FloridaPrimaryLicense 9111805 · taxonomy 363A00000X

Physician assistants near William Hornby

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

William Hornby's patients have a median age of 64

Across all payers, Dmand AI patient panel data puts William Hornby's median patient age at 64, with 54% women.

William Hornby's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women54%
  • Men45%

Source: Dmand AI Patient Panel Data

William Hornby wrote 5,097 Medicare Part D claims in 2024

In 2024, William Hornby wrote 5,097 Medicare Part D claims for 542 patients. 82% of them were for generic drugs. CMS names the drug for 4,367 of them, across 103 drugs with 11 or more claims each, at $634,537 in total drug cost.

Part D claims, 20245,097
Drugs named by CMS103
Total drug cost$634,537
Part D patients542

William Hornby's Part D claims by kind of drug, 2024

  • Generic4,164 claims82%
  • Brand-name874 claims17%
  • Other59 claims1%

William Hornby's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in William Hornby's Part D claims, 2024

  • Antibiotics5%266 of 5,097 claims
  • Antipsychotics, patients 65 and over1%31 of 5,097 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by William Hornby

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 William Hornby takes part in Medicare

William Hornby 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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William Hornby received $1,502 in industry payments from 2024 to 2025

CMS Open Payments shows 64 general payments to William Hornby from 13 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $561.

General payments to William Hornby by program year, 2024 to 2025

Companies that paid William Hornby the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to William Hornby

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for William Hornby's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about William Hornby

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is William Hornby's NPI number?

William Hornby's NPI number is 1205395274. It was assigned on March 18, 2019, and it is active in the NPI Registry.

What does William Hornby specialize in?

William Hornby is a physician assistant in Daytona Beach, Florida. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does William Hornby practice?

William Hornby practices at 301 Memorial Medical Parkway, Daytona Beach, FL 32117. William Hornby's primary practice is AdventHealth Daytona Beach in Daytona Beach, Florida, part of AdventHealth. Dmand AI also links William Hornby to 1 group practice or clinic.

What is William Hornby's office phone number?

The practice phone on file for William Hornby is (386) 231-6000.

What is William Hornby's medical license number?

William Hornby holds Florida license 9111805.

Which hospitals is William Hornby affiliated with?

William Hornby practices at AdventHealth Daytona Beach in Daytona Beach, Florida.

What medical group is William Hornby part of?

William Hornby is linked to Afermin Primary Care PA.

Does William Hornby accept Medicare?

Yes. CMS lists William Hornby as accepting Medicare assignment.

What drugs does William Hornby prescribe most?

In 2024 Medicare Part D data, William Hornby's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.

Has William Hornby received payments from drug or device companies?

CMS Open Payments shows $1,502 in general payments to William Hornby from 13 companies from 2024 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has William Hornby been practicing?

William Hornby's NPI was assigned in 2019.

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