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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan B Chelius, M. D.

Family Medicine Physician in Reading, PA · enumerated 2006 · practices at Tower Health Medical Group.

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

National Provider Identifier

1235232299

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Registry record

Entity type Individual (Type 1)
Name Alan B Chelius
Credential M. D.
Sex Male
Practice address 3703 Perkiomen Ave, Reading, PA, 19606
Phone (610) 779-5600
Fax (610) 779-9621
Enumeration date Sep 6, 2006
Last updated in NPPES Jan 22, 2014

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD027517E (PA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
422120 Other PA MEDICARE
001074045 Medicaid PA -

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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Alan Chelius?
Alan Chelius is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-22.