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

Gregory J Maag, Ma-Ccca Mid America Audiology Group, Ltd

Organization Audiologist · NPI 1720139967

Gregory J Maag, Ma-Ccca Mid America Audiology Group, Ltd is an Audiologist in Alton, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
What do these letters mean?
Ltd — Limited
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1417 Washington Ave Ste 2
Alton, IL 62002-3964
Phone: (618) 462-7900
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Audiologist (primary) Taxonomy 231H00000X (IL)

Record details

NPI number1720139967
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Gregory Maag — President · (618) 462-7900
NPI enumeratedJanuary 15, 2007
Last updated in NPPESAugust 13, 2007
Mailing address1417 Washington Ave, Ste 2, Alton, IL 62002-3964

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