Gregory R Kowalchuk, DDS

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

0237 Issued in CO

Practice address

7515 W Yale Ave
Suite a
Denver, CO 80227-3423

Phone

(303) 988-3319

Fax

(303) 988-3492

NPI assigned

Sep 20, 2005

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

State licenses

Practice roles

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

• Perfect Teeth - Yale P.C.

  • General Practice Dentistry
  • Denver, CO
  • NPI 1316068729
  NPD (past)

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

{
    "created_epoch": "1127174400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1396730990",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "28666 LITTLE BIG HORN DR",
            "city": "EVERGREEN",
            "state": "CO",
            "postal_code": "804396314",
            "telephone_number": "303-674-3486"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7515 W YALE AVE",
            "address_2": "SUITE A",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802273423",
            "telephone_number": "303-988-3319",
            "fax_number": "303-988-3492"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KOWALCHUK",
        "first_name": "GREGORY",
        "middle_name": "R",
        "name_prefix": "Dr.",
        "credential": "DDS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-09-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CO",
            "license": "0237",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alisa Koval, MD
• Darya Kovalchuk, RN
• Susanna Kovari, M.D.
• Jessica Kovats, PHARMD, MS
• Rachel Anne Kovensky, PH.D., L.P.
• Stacey Kowalski, RN
• Craig George Kozak, DC, PA-C, MSPAS
• Hannah Mary Koziol, DPT
• John J Kozlevchar, PA
• Zofia Kozlowska, MA, LAC, LPC

• General Practice Dentistry in Denver, CO
• Providers in Denver, CO by specialty
• General Practice Dentistry in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.