Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Margaret L. J. Hayes, MD

Individual provider Psychiatry Physician · NPI 1578619003

Dr. Margaret L. J. Hayes, MD is a Psychiatry Physician in Marion, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
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

3111 Williamson County Pkwy
Marion, IL 62959
Phone: (618) 997-3647
Fax: (618) 998-1328
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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 036-090222 (IL)

Record details

NPI number1578619003
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 26, 2007
Last updated in NPPESJanuary 11, 2010

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