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

Jeffrey S. Hammer, MD, LLC

Organization Psychiatry Physician · NPI 1174800213

Jeffrey S. Hammer, MD, LLC is a Psychiatry Physician in Edwardsville, Illinois. Licensed in Illinois. Registered with an NPI since 2011.

Licensed in
IL
In the registry since
2011
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

315 N Main St Ste 2
Edwardsville, IL 62025-1637
Phone: (618) 656-1726
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 036.063661 (IL)

Record details

NPI number1174800213
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Jeffrey Hammer — President/Owner · (618) 656-1726
NPI enumeratedNovember 3, 2011
Last updated in NPPESMarch 11, 2012
Mailing address315 N Main St, Suite 2, Edwardsville, IL 62025-1637

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