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Dr. Lyle Amos Siddoway, MD

Clinical Cardiac Electrophysiology Physician in York, PA · enumerated 2006.

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

National Provider Identifier

1538113659

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Registry record

Entity type Individual (Type 1)
Name Dr. Lyle Amos Siddoway
Credential MD
Sex Male
Practice address 30 Monument Rd, Suite 1100, York, PA, 17403
Phone (717) 851-2441
Fax (717) 851-3521
Enumeration date May 22, 2006
Last updated in NPPES May 11, 2021

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MD044979E (PA) Secondary
207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License MD044979E (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
20006623 Other PA AMERIHEALTH MERCY
577456 Other PA HIGHMARK BLUE SHIELD
1521565 Other PA GATEWAY
7243 Other PA GEISINGER
01939210 Other PA CAPITAL BLUE CROSS
001190133 Medicaid PA -
354482 Other PA CAREFIRST MD BLUE SHIELD
060013261 Other PA RAILROAD MEDICARE
086694 Other PA UNISON

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 Lyle Siddoway?
Lyle Siddoway is registered in NPPES with the primary taxonomy of Clinical Cardiac Electrophysiology 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 2021-05-11.