Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Professional Exam Services Inc.

Case Management Agency in Irving, TX · enumerated 2018 · authorized official Melissa Ennis, Owner.

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

National Provider Identifier

1801370184

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Registry record

Entity type Organization (Type 2)

Legal business name Professional Exam Services Inc.

Practice address 2233 E Grauwyler Rd Ste 107, Irving, TX, 75061

Phone (972) 659-1234

Fax (972) 223-2626

Enumeration date Sep 21, 2018

Last updated in NPPES Sep 21, 2018

Taxonomy & classification

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers Secondary

251B00000X Case Management Agency Agencies Primary

Authorized official

Name Melissa Ennis

Title Owner

Phone (214) 236-5131

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 Professional Exam Services Inc.?

Professional Exam Services Inc. is registered in NPPES as a Case Management Agency (its primary provider taxonomy).

Providers at this address

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Gregory Ennis Occupational Medicine Clinic/Center · Irving, TX NPI 1619092228

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-21.