William Maiorino, MD
NPI 1508840174 · Anesthesiology Physician · West Islip, NY
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Maiorino, MD is a Anesthesiology Physician provider in West Islip, NY (NPI 1508840174).
Provider details
- NPI number
- 1508840174
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 186588 (NY)
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
87 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) |
|---|---|---|
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 17 | $172 |
| Anesthesia for X-Ray Exam of Arteries and Veins Using Contrast01916 | 13 | $196 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 13 | $49 |
| Anesthesia for X-Ray Or Radiation Therapy01922 | 11 | $235 |
| Injection of Anesthetic Agent And/Or Steroid Into Other Nerve Or Branch64450 | 11 | $44 |
| Injection of Local Anesthetic for Abdominal Wall Pain Control on Both Sides Using Imaging Guidance64488 | 11 | $75 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$200 across 3 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
- 2005-12-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Maiorino's NPI number?
- William Maiorino's National Provider Identifier (NPI) is 1508840174, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Maiorino's specialty?
- William Maiorino is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Maiorino located?
- William Maiorino's practice location on file with NPPES is 1000 Montauk Hwy, West Islip, NY 11795-4927.
- What is William Maiorino's phone number?
- The practice phone number listed in the NPPES registry for William Maiorino is (631) 376-4088.
- Does William Maiorino accept Medicare?
- William Maiorino is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Maiorino's NPI active?
- Yes — William Maiorino's NPI (1508840174) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.