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William A Horn, MD

Dermatology Physician in Hatboro, PA · enumerated 2006.

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

National Provider Identifier

1720016538

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Registry record

Entity type Individual (Type 1)
Name William A Horn
Credential MD
Sex Male
Practice address 331 N York Rd, Hatboro, PA, 19040
Phone (215) 672-5260
Fax (215) 672-5287
Enumeration date Jun 29, 2006
Last updated in NPPES May 21, 2009

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD029516E (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
000197635 Other PA HIGHMARK BLUE SHIELD
0046682000 Other PA INDEPENDENCE 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

How do I verify William Horn's NPI record?
Cross-check NPI 1720016538 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1720016538 active?
Yes, as of the latest NPPES snapshot, NPI 1720016538 is active (record last updated 2009-05-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-21.