Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark David Alexander, RPH

Pharmacist in Sharon, PA · enumerated 2011.

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

National Provider Identifier

1720363518

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Registry record

Entity type Individual (Type 1)

Name Mark David Alexander

Credential RPH

Sex Male

Practice address 900 East State Street, Sharon, PA, 16146

Phone (724) 342-3291

Fax (724) 342-5138

Enumeration date Oct 12, 2011

Last updated in NPPES Oct 12, 2011

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RP038086R (PA) Primary

183500000X Pharmacist Pharmacy Service Providers · License RPI001500 (PA) Secondary

183500000X Pharmacist Pharmacy Service Providers · License 03216378 (OH) Secondary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential

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 specialty is Mark Alexander?

Mark Alexander 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-12.