Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Grand Prairie Professional Group, P. A.

Q: What is the NPI number for Grand Prairie Professional Group, P. A.?

The NPI for Grand Prairie Professional Group, P. A. is 1871850750, a Type 2 (organization) record in the CMS NPPES registry.

Addiction Psychiatry Physician in Grand Prairie, TX · enumerated 2012 · authorized official Mark Calarco, Facility Ceo.

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

National Provider Identifier

1871850750

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Registry record

Entity type Organization (Type 2)

Legal business name Grand Prairie Professional Group, P. A.

Practice address 1171 107th St, Grand Prairie, TX, 75050

Phone (615) 727-8387

Fax (615) 457-8094

Enumeration date Apr 18, 2012

Last updated in NPPES Aug 25, 2021

Taxonomy & classification

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License E1948 (TX) Primary

Authorized official

Name Mark Calarco

Title Facility Ceo

Phone (615) 712-5862

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 the NPI number for Grand Prairie Professional Group, P. A.?

The NPI for Grand Prairie Professional Group, P. A. is 1871850750, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Grand Prairie Professional Group, P. A.?

NPPES lists Mark Calarco (Facility Ceo) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-25.