Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gerald B Calia

Q: What type of organization is Gerald B Calia?

Gerald B Calia is registered in NPPES as a Primary Podiatric Medicine Podiatrist (its primary provider taxonomy).

Primary Podiatric Medicine Podiatrist in Oak Ridge, TN · enumerated 2007 · authorized official Katherine Sharp, Billing Manager.

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

National Provider Identifier

1003003922

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Gerald B Calia

Other name <Unavail>

Practice address 162 Ridgeway Ctr, Oak Ridge, TN, 37830

Phone (865) 482-3441

Fax (865) 483-6299

Enumeration date Sep 25, 2007

Last updated in NPPES Aug 24, 2015

Taxonomy & classification

213EP1101X Primary Podiatric Medicine Podiatrist Podiatric Medicine & Surgery Service Providers Primary

Authorized official

Name Katherine Sharp

Title Billing Manager

Phone (615) 563-2010

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Gerald B Calia?

Gerald B Calia is registered in NPPES as a Primary Podiatric Medicine Podiatrist (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-24.