Individual provider Active NPI

Richard R. Marek, D.D.S.

  • General Practice Dentistry
  • Chicago, IL
National Provider Identifier
1851380927
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice DentistryTaxonomy code 1223G0001X
License
1917470 Issued in IL
Practice address
5929 N Milwaukee Ave
Chicago, IL 60646-5419
Phone
(773) 631-6887
Fax
(773) 631-1898
NPI assigned
Oct 20, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Dentistry 1223G0001X 1917470 IL Primary

Addresses

Primary practice location

5929 N Milwaukee Ave
Chicago, IL 60646-5419

Mailing address

5929 N Milwaukee Ave
Chicago, IL 60646-5419
Phone (773) 631-6887

Other identifiers 1

IdentifierTypeStateIssuer
101834MedicaidIL

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: No
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20160607001048 IL Order and Referring Only - Oral SurgeryPractitioner - Oral Surgery 0547550311

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
1917470ILMDGeneral Practice Dentistry

NPI Registry JSON

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

{
    "created_epoch": "1129766400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1851380927",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5929 N MILWAUKEE AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606465419",
            "telephone_number": "773-631-6887",
            "fax_number": "773-631-1898"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5929 N MILWAUKEE AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606465419",
            "telephone_number": "773-631-6887",
            "fax_number": "773-631-1898"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAREK",
        "first_name": "RICHARD",
        "middle_name": "R.",
        "name_prefix": "Dr.",
        "credential": "D.D.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "IL",
            "license": "1917470",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "101834",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.