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Nicholas Ahn, M.D.

Internal Medicine

GenderMaleNPI1376983346Affiliated sites1

Affiliated Health Centers

Nicholas Ahn is affiliated with 1 federally qualified health center location.

SIU Center for Family Medicine-Decatur

102 W Kenwood Ave, Decatur, IL 62526-4368

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Primary Care Services

Preventive care, chronic disease management, and routine health services for all ages.

Annual physicals
Chronic disease management
Immunizations
Preventive screenings
Acute illness care
Hypertension & diabetes management
Referral coordination
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Clinician information is sourced from the NPPES National Provider Registry (February 2026) and reflects self-reported practice locations. Individual providers may have joined or left since the last registry update.

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Internal Medicine

Providing internal medicine services at federally qualified health centers with sliding fee scale options.

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