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Mark A Chastain

Pharmacist in Huntsville, AL · enumerated 2006.

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

National Provider Identifier

1124182266

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Registry record

Entity type Individual (Type 1)
Name Mark A Chastain
Sex Male
Practice address 202 Governors Dr Se, Huntsville, AL, 35801
Phone (256) 517-8317
Fax (256) 715-0058
Enumeration date Dec 21, 2006
Last updated in NPPES Feb 17, 2020

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 12268 (AL) 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

What specialty is Mark Chastain?
Mark Chastain is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-17.