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John Showalter

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21+ years in practice

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Locations

Office

27650 Ferry Rd

Warrenville, IL 60555

No outcomes data has been published for Dr. John Showalter.

Provider-reported outcomes are aggregate statistics only — no patient names, dates of service, or individual identifiers. Data is self-reported by the provider and not independently verified. This information is not a substitute for professional medical advice.

NPI: 1285623488✓ Verified via NPI Registry

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