Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mark Withrock, RPH

Pharmacist in Charleston, SC · enumerated 2012 · practices at South Carolina Cvs Pharmacy, L.L.C..

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

National Provider Identifier

1336497262

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Registry record

Entity type Individual (Type 1)

Name Mark Withrock

Credential RPH

Sex Male

Practice address Charleston, SC, 29414

Phone (843) 769-6560

Fax (843) 852-7870

Enumeration date Aug 27, 2012

Last updated in NPPES Aug 27, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 6205 (SC) Primary

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.

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Frequently asked questions

How do I verify Mark Withrock's NPI record?

Cross-check NPI 1336497262 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1336497262 active?

Yes, as of the latest NPPES snapshot, NPI 1336497262 is active (record last updated 2012-08-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-27.