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Worst Day Ever

Colon & Rectal Surgery Physician in Westerville, OH · enumerated 2014 · authorized official David Giammar, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1467865147

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Registry record

Entity type Organization (Type 2)
Legal business name Worst Day Ever
Practice address 477 Cooper Rd Ste 440, Westerville, OH, 43081
Phone (380) 898-5561
Fax (380) 898-5563
Enumeration date Jun 10, 2014
Last updated in NPPES Apr 18, 2025

Taxonomy & classification

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name David Giammar
Title President
Phone (614) 353-3000

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Who is the authorized official for Worst Day Ever?
NPPES lists David Giammar (President) as the authorized official for this organization.
What is the NPI number for Worst Day Ever?
The NPI for Worst Day Ever is 1467865147, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-18.