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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Leo Hahn, PHARM.D.

Pharmacist in Pittsburgh, PA · enumerated 2005.

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

National Provider Identifier

1861496283

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Registry record

Entity type Individual (Type 1)
Name Mark Leo Hahn
Credential PHARM.D.
Sex Male
Practice address 1700 Murray Ave, Pittsburgh, PA, 15217
Phone (412) 521-3900
Fax (412) 521-5233
Enumeration date Jun 13, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RP438801 (PA) Primary
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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

Is NPI 1861496283 active?
Yes, as of the latest NPPES snapshot, NPI 1861496283 is active (record last updated 2007-07-08).
How do I verify Mark Hahn's NPI record?
Cross-check NPI 1861496283 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 2007-07-08.