Dr. William Andrew Justiz, MD

  • Naples, FL
  • Neurologist
NPI1275583916PAC ID6305984717
Medicare services, 2024
2,141
Medicare patients, 2024
864
Part D claims, 2024
3,361
Clinical trials
7
MIPS score, 2024
95
Practice address
3200 Bailey Ln Ste 200 Suite 200, Naples, FL 34105
Practice phone
Call (239) 262-8971
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Collier Neurologic Specialists

Multi-specialty group site · Naples, Florida

See all 5 affiliations

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Dr. William Andrew Justiz is a neurologist in Naples, Florida

Dr. Justiz practices at Collier Neurologic Specialists in Naples, Florida.

Dr. Justiz's NPI, 1275583916, was assigned on May 11, 2006. Dr. Justiz graduated from University of Miami, Miller School of Medicine in 1994. Dr. Justiz holds Florida license ME0076893.

NPI and contact details
Medicare PAC ID
6305984717
NPI enumeration date
May 11, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(239) 262-8971
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
58
Medical school graduation
1994

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

Dr. William Andrew Justiz practices at Collier Neurologic Specialists in Naples, Florida

Dr. Justiz's primary practice is Collier Neurologic Specialists, at 3200 Bailey Ln Ste 200 Suite 200, Naples, FL 34105. The practice phone is (239) 262-8971.

  • Collier Neurologic Specialists
    3200 Bailey Ln Ste 200 Suite 200, Naples, FL 34105Phone(239) 262-8971

Source: Dmand AI Affiliation Data

Dr. William Andrew Justiz is affiliated with 4 sites of care and 1 medical group

Dr. Justiz's primary practice is Collier Neurologic Specialists in Naples, Florida. Dr. Justiz is also affiliated with NCH Baker Hospital. The medical group on file is Collier Neurologic Specialists. Dmand AI also links Dr. Justiz to 2 more hospitals, each named with a free account.

See all 5 affiliations for Dr. Justiz

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. William Andrew Justiz's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Justiz practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Collier Neurologic SpecialistsAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. William Andrew Justiz is one of 1,297 neurologists in Florida

Neurology is Dr. Justiz's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Justiz is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Justiz's licenses on file in 2 states: Florida and Texas.

Specialties and state licenses

  • Neurology, FloridaPrimaryLicense ME0076893 · 1998 to 2026 · taxonomy 2084N0400X
  • Texas license1995 to 2000

Clinical focus

Dmand AI lists alzheimer's disease, carpal tunnel syndrome, cerebrovascular disease, epilepsy, fibromyalgia and chronic pain, head injury, hereditary polyneuropathy and lower back pain among the conditions Dr. Justiz treats.

Neurologists near Dr. Justiz

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. William Andrew Justiz billed Medicare for 2,141 services in 2024

CMS data shows 2,141 Medicare services from Dr. Justiz across 7 procedure codes in 2024, for 864 Medicare patients. Medicare paid $231,220 for them. Every service was in an office.

Medicare services, 20242,141
Medicare patients864
Paid by Medicare$231,220
Procedure codes7

Dr. Justiz's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,7992024: 1,9378%
Tests and treatments
2023: 1302024: 20457%

Dr. Justiz compared with the Florida median for neurologists, 2024

  • Dr. Justiz
  • Florida median
Medicare services
2,141vs 4794.5 times
Medicare patients
864vs 2373.6 times
Part D claims
3,174vs 4157.6 times

Medians across 1,209 neurologists in Florida with Dmand AI profiles that report each measure.

Dr. Justiz's 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.

See all procedures by Dr. Justiz

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. William Andrew Justiz treated 864 Medicare patients in 2024, average age 80

CMS counts 864 Medicare patients who saw Dr. Justiz in 2024. The largest group is 75 to 84, with 440 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.44, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Justiz's median patient age at 81, with 47% women.

Medicare patients, 2024864
Average age80
Average risk score1.44

Dr. Justiz's Medicare patients by age, 2024

Dr. Justiz's Medicare patients by sex, 2024

  • Women44552%
  • Men41948%

Chronic conditions among Dr. Justiz's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis61%
  4. Alzheimer's and dementia48%
  5. Ischemic heart disease44%
  6. Mood disorders38%
  7. Anxiety37%
  8. Depression35%

Share of Medicare patients with each condition. A patient can have several.

Dr. Justiz's patients across all payers

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

Patient panel by age, all payers

Median age 81

Patient panel by sex, all payers

  • Women47%
  • Men52%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. William Andrew Justiz wrote 3,361 Medicare Part D claims in 2024

In 2024, Dr. Justiz wrote 3,361 Medicare Part D claims for 595 patients. 92% of them were for generic drugs. CMS names the drug for 3,174 of them, across 43 drugs with 11 or more claims each, at $560,979 in total drug cost. In 2023, CMS named 2,995 claims across 38 drugs.

Part D claims, 20243,361
Drugs named by CMS43
Total drug cost$560,979
Part D patients595

Dr. Justiz's Part D claims by kind of drug, 2024

  • Generic3,101 claims92%
  • Brand-name and other260 claims8%

Dr. Justiz'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 Dr. Justiz's Part D claims, 2024

  • Antipsychotics, patients 65 and over5%176 of 3,361 claims

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

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2,9952024: 3,1746%

Drugs named by CMS: 43 in 2024, 38 in 2023.

See all prescribing by Dr. Justiz

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

Dr. William Andrew Justiz scored 95 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Justiz for performance year 2024, reported as part of a group. Dr. Justiz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Justiz as offering telehealth. CMS counts 24 procedures of skin biopsy by Dr. Justiz, more than 64% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Justiz's MIPS scores, performance year 2024

  • 95of 100Final score
  • 100of 100Quality
  • 40of 100Improvement Activities
  • 79of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Justiz ranks in Medicare procedure volume

Skin biopsy
64th percentile24 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. William Andrew Justiz has worked on 7 clinical trials

Dmand AI links Dr. Justiz to 7 clinical trials. 1 is still active or recruiting. Conditions studied include Alzheimer Disease, Psychomotor Agitation and Psychomotor Disorders. ACADIA Pharmaceuticals Inc. sponsors the most, 4. Open Payments lists research payments to Dr. Justiz that name 5 trials.

Clinical trials with Dr. Justiz by phase

  1. NonePhase 1: no trials
  2. 1Phase 2: 1 trial
  3. 1Phase 3: 1 trial
  4. NonePhase 4: no trials

Conditions in Dr. Justiz's trials

  • Alzheimer Disease
  • Psychomotor Agitation
  • Psychomotor Disorders
  • Tauopathies
  • Delusions

Investigators on the most trials with Dr. Justiz

Recent clinical trials with Dr. Justiz

See all 7 clinical trials and co-investigators

Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage

Dr. William Andrew Justiz received $16,339 in industry payments from 2016 to 2025

CMS Open Payments shows 469 general payments to Dr. Justiz from 53 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 67% of the total. Merck Sharp & Dohme Corporation paid the most, $4,108. It also lists 23 research payments totaling $127,390 from 2016 to 2024, naming 5 clinical trials.

General payments to Dr. Justiz by program year, 2016 to 2025

General payments to Dr. Justiz by kind, 2016 to 2025

$16.3Kin total
  • Food and beverage$10,93767%
  • Travel and lodging$5,31233%
  • Speaker and faculty fees$720%
  • Education$190%

Companies that paid Dr. Justiz the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Justiz

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

Dr. William Andrew Justiz graduated from University of Miami, Miller School of Medicine

Dr. Justiz graduated from University of Miami, Miller School of Medicine in 1994.

  1. Medical schoolUniversity of Miami, Miller School of Medicine
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. William Andrew Justiz accepts plans from 16 insurance carriers

Dr. Justiz is in network with 16 carriers, including Elevance, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

Plan types Dr. Justiz accepts, by number of carriers

  1. PPO11
  2. HMO9
  3. Medicare9
  4. POS5
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. William Andrew Justiz'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 Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Clinical trials and co-investigatorsClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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 Dr. William Andrew Justiz

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. William Andrew Justiz's NPI number?

Dr. William Andrew Justiz's NPI number is 1275583916. It was assigned on May 11, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. William Andrew Justiz?

Dr. William Andrew Justiz is a neurologist in Naples, Florida. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. William Andrew Justiz practice?

Dr. Justiz practices at 3200 Bailey Ln Ste 200 Suite 200, Naples, FL 34105. Dr. Justiz's primary practice is Collier Neurologic Specialists in Naples, Florida. Dmand AI also links Dr. Justiz to 2 hospitals.

What is Dr. William Andrew Justiz's office phone number?

The practice phone on file for Dr. Justiz is (239) 262-8971.

What is Dr. William Andrew Justiz's medical license number?

Dr. Justiz holds Florida license ME0076893, one of the licenses on file in 2 states.

Which states has Dr. William Andrew Justiz been licensed in?

Dmand AI has state licenses on file for Dr. Justiz in Florida (1998 to 2026) and Texas (1995 to 2000).

Which hospitals is Dr. William Andrew Justiz affiliated with?

Dr. Justiz is affiliated with NCH Baker Hospital. Dmand AI links Dr. Justiz to 2 more hospitals.

What medical group is Dr. William Andrew Justiz part of?

Dr. Justiz is linked to Collier Neurologic Specialists.

Does Dr. William Andrew Justiz accept Medicare?

Yes. CMS data shows Dr. Justiz billed Medicare for 2,141 services in 2024, and Dr. Justiz accepts Medicare assignment.

Does Dr. William Andrew Justiz offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Justiz as offering telehealth services.

Show 10 more questionsShow fewer questions

What is Dr. William Andrew Justiz's MIPS score?

Dr. Justiz's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.

How many Medicare patients does Dr. William Andrew Justiz see?

CMS counts 864 Medicare patients who saw Dr. Justiz in 2024, with an average age of 80.

Is Dr. William Andrew Justiz board certified?

Yes. Dr. Justiz is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does Dr. William Andrew Justiz bill to Medicare?

In 2024, Dr. Justiz's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, new patient (99205).

Where did Dr. William Andrew Justiz go to medical school?

Dr. Justiz graduated from University of Miami, Miller School of Medicine in 1994.

What drugs does Dr. William Andrew Justiz prescribe most?

In 2024 Medicare Part D data, Dr. Justiz's most prescribed drugs by claims were Donepezil HCl, Memantine HCl and Carbidopa-Levodopa.

Has Dr. William Andrew Justiz received payments from drug or device companies?

CMS Open Payments shows $16,339 in general payments to Dr. Justiz from 53 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.

How long has Dr. William Andrew Justiz been practicing?

Dr. Justiz graduated from medical school in 1994, 32 years ago.

Does Dr. William Andrew Justiz do research?

Dr. Justiz has worked on 7 clinical trials.

What insurance does Dr. William Andrew Justiz accept?

Dr. Justiz is in network with 16 carriers, including Elevance, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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