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

Mary L Brennan, NP

Individual provider Nurse Practitioner · NPI 1396789509

Mary L Brennan, NP is a Nurse Practitioner in Peoria, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

5401 N Knoxville Ave Ste 119
Peoria, IL 61614-5098
Phone: (309) 692-1700
Fax: (309) 692-1771
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X (IL)

Record details

NPI number1396789509
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJune 16, 2006
Last updated in NPPESJuly 13, 2026

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