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John J. Cassel, MD, PC

Cardiovascular Disease Physician in Allentown, PA · enumerated 2005 · authorized official Margery Fettig, Practice Manager.

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

National Provider Identifier

1548254725

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Registry record

Entity type Organization (Type 2)
Legal business name John J. Cassel, MD, PC
Practice address 1255 S Cedar Crest Blvd, Suite 1200, Allentown, PA, 18103
Phone (610) 437-6222
Fax (610) 437-5910
Enumeration date Sep 2, 2005
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MC933136C (PA) Primary

Authorized official

Name Margery Fettig
Title Practice Manager
Phone (610) 437-6222

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 current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.
Where is John J. Cassel, MD, PC located?
The practice location on file with NPPES is in Allentown, PA.

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