Individual provider Active NPI

Leon Valentin Siomka, DDS MS

  • Orthodontics and Dentofacial Orthopedics Dentistry
  • Brighton, MI
National Provider Identifier
1255398780
Registry record updated Aug 20, 2007
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthodontics and Dentofacial Orthopedics DentistryTaxonomy code 1223X0400X
License
2901013203 Issued in MI
Practice address
10407 E Grand River
Suite 700
Brighton, MI 48116
Phone
(810) 227-6995
Fax
(810) 227-9794
NPI assigned
Apr 27, 2006
Last updated
Aug 20, 2007By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 20, 2007

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Orthodontics and Dentofacial Orthopedics Dentistry 1223X0400X 2901013203 MI Primary

Addresses

Primary practice location

10407 E Grand River
Suite 700
Brighton, MI 48116

Mailing address

10407 E Grand River
Suite 700
Brighton, MI 48116
Phone (810) 227-6995

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
Credentials
Master of Science

State licenses

LicenseStateTypeSpecialty
2901013203MIMDOrthodontics and Dentofacial Orthopedic Dentist

Practice roles

OrganizationSpecialtyStatusNew patients
Shift Orthodontics PLLC Orthodontics and Dentofacial Orthopedics PastSince Nov 7, 2025 Accepting new patients

Organizations & group practices 1

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

NPI Registry JSON

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

{
    "created_epoch": "1146096000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1187568000000",
    "number": "1255398780",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10407 E GRAND RIVER",
            "address_2": "SUITE 700",
            "city": "BRIGHTON",
            "state": "MI",
            "postal_code": "48116",
            "telephone_number": "810-227-6995",
            "fax_number": "810-227-9794"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10407 E GRAND RIVER",
            "address_2": "SUITE 700",
            "city": "BRIGHTON",
            "state": "MI",
            "postal_code": "48116",
            "telephone_number": "810-227-6995",
            "fax_number": "810-227-9794"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIOMKA",
        "first_name": "LEON",
        "middle_name": "VALENTIN",
        "name_prefix": "Dr.",
        "credential": "DDS MS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-27",
        "last_updated": "2007-08-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223X0400X",
            "taxonomy_group": "",
            "desc": "Dentist, Orthodontics and Dentofacial Orthopedics",
            "state": "MI",
            "license": "2901013203",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Brighton, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 20, 2007; 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.