Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Alan Esker, MD

Individual provider Internal Medicine Physician · NPI 1831159698

Alan Esker, MD is an Internal Medicine Physician in Freeport, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1010 Fairway Dr
Freeport, IL 61032-6600
Phone: (815) 599-7740
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036-72602 (IL)

Record details

NPI number1831159698
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2006
Last updated in NPPESOctober 20, 2017
Mailing address421 W Exchange St, Po Box 268, Freeport, IL 61032-4030

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