William D Nunn II

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

336386 Issued in NY

Practice address

4 Smith Haven Mall
Lake Grove, NY 11755-1219

Phone

(631) 444-7337

Fax

(631) 444-2894

NPI assigned

Apr 6, 2022

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

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles (2 of 6)

Locations

Networks

• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H9678

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.

• Stony Brook Children'S Service, University Faculty Practice Corporatio

  • Pediatrics Physician
  • Stony Brook, NY
  • NPI 1083660575
  Medicare reassignment NPD
• Stony Brook Surgical Associates, University Faculty Practice Corporati

  • Surgery Physician
  • Stony Brook, NY
  • NPI 1063468536
  NPD (past)

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

{
    "created_epoch": "1649203200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753833600000",
    "number": "1134860786",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "101 NICOLLS RD",
            "address_2": "HSC LEVEL 11 RM 040",
            "city": "STONY BROOK",
            "state": "NY",
            "postal_code": "11794",
            "telephone_number": "631-444-2020",
            "fax_number": "631-444-2894"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4 SMITH HAVEN MALL",
            "city": "LAKE GROVE",
            "state": "NY",
            "postal_code": "117551219",
            "telephone_number": "631-444-7337",
            "fax_number": "631-444-2894"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NUNN",
        "first_name": "WILLIAM",
        "middle_name": "D",
        "name_suffix": "II",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-06",
        "last_updated": "2025-07-30",
        "certification_date": "2025-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NY",
            "license": "336386",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Astha Muttreja, M.D.
• Newt Ambulette Transportation LLC
• Theresa Jeanne Nicosia, RN MS FNP
• North Shore Hematology Oncology Associates PC
• North Shore Regional MRI PC
• Paula Nutis-Finneran, OD
• Ny Acupuncture Plus Massage Therapy P.C.
• Ny Theraapy Placemeny, Inc
• Mary Christine O'Brien, PSYD
• Nathaniel O'Neil, LCSW

• Pediatrics Physician in Lake Grove, NY
• Providers in Lake Grove, NY by specialty
• Pediatrics Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 2025; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.