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Mr. Mark Gregory Sheppard I, L.C.D.C

Addiction (Substance Use Disorder) Counselor in Plano, TX · enumerated 2008 · practices at Jcques Family Optical.

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

National Provider Identifier

1659535821

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Registry record

Entity type Individual (Type 1)
Name Mr. Mark Gregory Sheppard I
Credential L.C.D.C
Sex Male
Practice address 3131 Custer Rd, 265, Plano, TX, 75075
Phone (972) 985-7565
Fax (888) 664-0571
Enumeration date Jul 16, 2008
Last updated in NPPES Jul 16, 2008

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 9006 (TX) Primary

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Mark Sheppard?
Mark Sheppard is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-16.