NPIMap

Organization Active NPI

Worst Day Ever

  • Colon & Rectal Surgery Physician
  • Westerville, OH
National Provider Identifier
1467865147
Registry record updated Apr 18, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Colon & Rectal Surgery PhysicianTaxonomy code 208C00000X
Legal business name
WORST DAY EVER
Practice address
477 Cooper Rd Ste 440
Westerville, OH 43081-8055
Phone
(380) 898-5561
Fax
(380) 898-5563
NPI assigned
Jun 10, 2014
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Apr 18, 2025

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

Authorized official

Name
Dr. David R Giammar, MDNPI 1154307858
Title
President
Phone
(614) 353-3000

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Colon & Rectal Surgery PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 208C00000X Primary

Addresses

Primary practice location

477 Cooper Rd Ste 440
Westerville, OH 43081-8055

Mailing address

PO Box 3250
Winchester, VA 22604-2450
Phone (540) 678-3588

Other practice location 1

3853 Trueman Ct
Hilliard, OH 43026-2496
Phone (614) 353-3000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OH

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20140903001049 OH Part B Supplier - Clinic/Group Practice 5890913982 Receives reassigned benefits from 1 practitioner
Practice locations: Hilliard, OH; Westerville, OH

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 11

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1402358400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1744934400000",
    "number": "1467865147",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3250",
            "city": "WINCHESTER",
            "state": "VA",
            "postal_code": "226042450",
            "telephone_number": "540-678-3588",
            "fax_number": "504-678-9025"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "477 COOPER RD STE 440",
            "city": "WESTERVILLE",
            "state": "OH",
            "postal_code": "430818055",
            "telephone_number": "380-898-5561",
            "fax_number": "380-898-5563"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3853 Trueman Ct",
            "address_purpose": "LOCATION",
            "city": "Hilliard",
            "state": "OH",
            "postal_code": "430262496",
            "country_code": "US",
            "telephone_number": "614-353-3000",
            "fax_number": "614-210-2563",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "WORST DAY EVER",
        "organizational_subpart": "NO",
        "enumeration_date": "2014-06-10",
        "last_updated": "2025-04-18",
        "certification_date": "2025-04-18",
        "status": "A",
        "authorized_official_last_name": "GIAMMAR",
        "authorized_official_first_name": "DAVID",
        "authorized_official_middle_name": "R",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "614-353-3000",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "208C00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Colon & Rectal Surgery",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Westerville, OH

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 18, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.