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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Leonard J Marchinski, MD PC

Specialist in West Reading, PA · enumerated 2006 · authorized official Leonard Marchinski, President.

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

National Provider Identifier

1588756274

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Registry record

Entity type Organization (Type 2)
Legal business name Leonard J Marchinski, MD PC
Practice address 301 S 7th Ave, Suite 3020, West Reading, PA, 19611
Phone (610) 375-6147
Fax (610) 378-9967
Enumeration date Sep 29, 2006
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

174400000X Specialist Other Service Providers · License MD027492E (PA) Primary

Authorized official

Name Leonard Marchinski
Title President
Phone (610) 375-6147

Other identifiers

Identifier Type State Issuer
02327800 Other PA KEYSTONE SENIOR BLUE
02327800 Other PA CAPITAL BLUE CROSS

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 is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Leonard J Marchinski, MD PC?
Leonard J Marchinski, MD PC is registered in NPPES as a Specialist (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.