William Albert Maiorino Jr., MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

186588 Issued in NY

Practice address

1000 Montauk Hwy
Good Samaritan Hospital
West Islip, NY 11795-4927

Phone

(631) 376-4088

NPI assigned

Dec 6, 2005

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in NY

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Anesthesiology

Education

New York Medical College, 1989

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Long Island Anesthesiologists, PLLCGroup PAC ID 5799677902, 44 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Good Samaritan Hospital Medical Center Hospital, West Islip, NY, CCN 330286

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Long Island Anesthesiologists, PLLC

  • Anesthesiology Physician
  • West Islip, NY
  • NPI 1528161171
  Medicare reassignment Care Compare group NPD
• Good Samaritan Hospital Medical Center

  • Physician Assistant
  • West Islip, NY
  • NPI 1518901180
  Medicare reassignment NPD
• Good Samaritan Hospital Medical

  • Critical Care Medicine (Internal Medicine) Physician
  • West Islip, NY
  • NPI 1548501620
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Good Samaritan Hospital Medical Center

  • General Acute Care Hospital
  • West Islip, NY
  • NPI 1902865355
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1133827200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1508840174",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3 BOYLE RD",
            "city": "SELDEN",
            "state": "NY",
            "postal_code": "117844030",
            "telephone_number": "631-736-4064",
            "fax_number": "631-736-1332"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 MONTAUK HWY",
            "address_2": "GOOD SAMARITAN HOSPITAL",
            "city": "WEST ISLIP",
            "state": "NY",
            "postal_code": "117954927",
            "telephone_number": "631-376-4088"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAIORINO",
        "first_name": "WILLIAM",
        "middle_name": "ALBERT",
        "name_suffix": "Jr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-06",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NY",
            "license": "186588",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01552565",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Robin Cindy Mackoff, DO
• Jill Suzanne Macleese, DVM
• Vemkata Maddineni, M.D.
• Kristen Donna Mailand, D.O.
• William A Maiorino, MD
• Ira Joel Malter, MD
• Inayat Mamoor, DDS
• Robyna Mamoor, DDS
• Anastasios Manaris, MD
• Harman Manj, DPM

• Anesthesiology Physician in West Islip, NY
• Providers in West Islip, NY by specialty
• Anesthesiology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.