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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Robert Lawson, PHARM.D.

Pharmacist in Marcus Hook, PA · enumerated 2006.

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

National Provider Identifier

1255404901

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Robert Lawson
Credential PHARM.D.
Sex Male
Practice address 46 E 10th St, Marcus Hook, PA, 19061
Fax (610) 485-2459
Enumeration date Nov 17, 2006
Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RP437811 (PA) Primary
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD credential

Other identifiers

Identifier Type State Issuer
10222731260004 Medicaid PA -
1265673586 Medicaid DE -

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

Is NPI 1255404901 active?
Yes, as of the latest NPPES snapshot, NPI 1255404901 is active (record last updated 2022-07-21).
How do I verify Mark Lawson's NPI record?
Cross-check NPI 1255404901 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.