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Dr. Donald Ray Siddoway, MD

Clinical Cardiac Electrophysiology Physician in Columbia, SC · enumerated 2008.

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

National Provider Identifier

1235392093

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Registry record

Entity type Individual (Type 1)
Name Dr. Donald Ray Siddoway
Credential MD
Sex Male
Practice address 8 Richland Medical Park Dr Ste 200, Columbia, SC, 29203
Phone (803) 256-6511
Fax (803) 376-5885
Enumeration date Jul 2, 2008
Last updated in NPPES Mar 23, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD442073 (PA) Secondary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 27143 (WV) Secondary
207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 27143 (WV) Secondary
207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 86722 (SC) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Donald Siddoway practice?
The practice location on file with NPPES is in Columbia, SC. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Donald Siddoway?
The National Provider Identifier (NPI) for Donald Siddoway is 1235392093, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-23.