William Justiz, MD
NPI 1275583916 · Neurology Physician · Naples, FL
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Justiz, MD is a Neurology Physician provider in Naples, FL (NPI 1275583916).
Provider details
- NPI number
- 1275583916
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME0076893 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
2,141 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,425 | $129 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 256 | $182 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 236 | $224 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 136 | $95 |
| Nerve Conduction, 7-8 Studies95910 | 43 | $174 |
| Nerve Conduction, 9-10 Studies |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 884 | 268 |
| Memantine Hcl | 289 | 88 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 262 | 74 |
| Sertraline Hcl | 256 | 69 |
| Rivastigmine | 151 | 43 |
| Galantamine Hbrbrand: Galantamine Er | 119 | 35 |
| Gabapentin | 109 | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,805 across 60 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
- 2006-05-11
- Last updated
- 2026-05-27
- Certified
- 2026-05-27
Frequently asked questions
- What is William Justiz's NPI number?
- William Justiz's National Provider Identifier (NPI) is 1275583916, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Justiz's specialty?
- William Justiz is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is William Justiz located?
- William Justiz's practice location on file with NPPES is 3200 Bailey Ln Ste 200, Naples, FL 34105-8523.
- What is William Justiz's phone number?
- The practice phone number listed in the NPPES registry for William Justiz is (239) 262-8971.
- Does William Justiz accept Medicare?
- William Justiz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Justiz's NPI active?
- Yes — William Justiz's NPI (1275583916) is active in the NPPES registry as of the last update on 2026-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.