Individual provider Active NPI

John D. Rajniak, LPC, DDS

  • General Practice Dentistry
  • Williamsburg, VA
National Provider Identifier
1538216361
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice DentistryTaxonomy code 1223G0001X
License
0401008181 Issued in VA
Practice address
1657 Merrimac TRL
Williamsburg, VA 23185-5624
Phone
(757) 220-3200
NPI assigned
Jan 4, 2007
Last updated
Sep 11, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Professional Counselor 101YP2500X 0701003769 VA
General Practice Dentistry 1223G0001X 0401008181 VA Primary

Addresses

Primary practice location

1657 Merrimac TRL
Williamsburg, VA 23185-5624

Mailing address

109 Mobjack Loop
Yorktown, VA 23693-2613
Phone (757) 868-6480

Other identifiers 3

IdentifierTypeStateIssuer
180340OtherVAANTHEM
OPTIMAOtherVAO85428M
360843OtherVAMANAGED HEALTH NET

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
0701003769VAMDProfessional Counselor
0401008181VAMDGeneral Practice Dentistry

Practice roles

OrganizationSpecialtyStatusNew patients
Colonial Behavioral Health PastSince Sep 1, 2005 Accepting new patients
Colonial Behavioral Health Past Accepting new patients

Interoperability endpoints

  • FHIR API: https://fhir-myrecord.cerner.com/r4/2b8c86f5-c497-45b0-94ed-0102e20d1c70/

Organizations & group practices 2

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": "1167868800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1538216361",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "109 MOBJACK LOOP",
            "city": "YORKTOWN",
            "state": "VA",
            "postal_code": "236932613",
            "telephone_number": "757-868-6480"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1657 MERRIMAC TRL",
            "city": "WILLIAMSBURG",
            "state": "VA",
            "postal_code": "231855624",
            "telephone_number": "757-220-3200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RAJNIAK",
        "first_name": "JOHN",
        "middle_name": "D.",
        "name_prefix": "Dr.",
        "credential": "LPC, DDS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-01-04",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "VA",
            "license": "0701003769",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "VA",
            "license": "0401008181",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "ANTHEM",
            "identifier": "180340",
            "state": "VA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "O85428M",
            "identifier": "OPTIMA",
            "state": "VA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MANAGED HEALTH NET",
            "identifier": "360843",
            "state": "VA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Williamsburg, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.