Individual provider Active NPI

John Mazzocco, DDS

  • Periodontics
  • Saint Charles, IL
National Provider Identifier
1396511291
Registry record updated Jul 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
PeriodonticsTaxonomy code 1223P0300X
License
019.036975 Issued in IL
Practice address
525 Tyler Rd
Saint Charles, IL 60174-3305
Phone
(630) 377-4677
NPI assigned
Nov 30, 2023
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 27, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
PeriodonticsGroup: 193400000X SINGLE SPECIALTY GROUP 1223P0300X 019.036975 IL Primary

Addresses

Primary practice location

525 Tyler Rd
Saint Charles, IL 60174-3305

Mailing address

525 Tyler Rd
Saint Charles, IL 60174-3305
Phone (630) 362-2986

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
2901601580MIMDPeriodontist

NPI Registry JSON

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

{
    "created_epoch": "1701302400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785110400000",
    "number": "1396511291",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "525 TYLER RD",
            "city": "SAINT CHARLES",
            "state": "IL",
            "postal_code": "601743305",
            "telephone_number": "630-362-2986"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "525 TYLER RD",
            "city": "SAINT CHARLES",
            "state": "IL",
            "postal_code": "601743305",
            "telephone_number": "630-377-4677"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAZZOCCO",
        "first_name": "JOHN",
        "credential": "DDS",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2023-11-30",
        "last_updated": "2026-07-27",
        "certification_date": "2026-07-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223P0300X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Dentist, Periodontics",
            "state": "IL",
            "license": "019.036975",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Saint Charles, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 27, 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.