John William Mahler

Primary specialty

Student in an Organized Health Care Education/Training ProgramTaxonomy code 390200000X

Practice address

300 Pompton Rd
Wayne, NJ 07470-2103

Phone

(973) 720-2000

NPI assigned

Apr 24, 2026

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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

{
    "created_epoch": "1776988800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776988800000",
    "number": "1235075003",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "60 BEACH ST FL 2",
            "city": "ROCKAWAY",
            "state": "NJ",
            "postal_code": "078663514",
            "telephone_number": "973-349-9658"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 POMPTON RD",
            "city": "WAYNE",
            "state": "NJ",
            "postal_code": "074702103",
            "telephone_number": "973-720-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAHLER",
        "first_name": "JOHN",
        "middle_name": "WILLIAM",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-04-24",
        "last_updated": "2026-04-24",
        "certification_date": "2026-04-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NJ",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Milana Maftsir, DDS
• Mag Group PC
• Magdy Wahba, MD
• Stephanie Maggio
• Beth F. Mahler, LCSW
• Faisal Mahmood, MD
• James W Mahon, MD
• Herbert Simon Maier, M.D.
• Mailly Consulting Inc
• Kenneth Howard Mailly, P.T.

• Student in an Organized Health Care Education/Training Program in Wayne, NJ
• Providers in Wayne, NJ by specialty
• Student in an Organized Health Care Education/Training Program in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 24, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.