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

Deana M. Mayer, APN, CNP

Individual provider Nurse Practitioner · NPI 1558897421

Deana M. Mayer, APN, CNP is a Nurse Practitioner in Rockford, Illinois. Qualified in 2016, 10 years ago. Practices with Osf Multi-Specialty Group, a 2,128-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
10
Licensed in
IL
In the registry since
2017
What do these letters mean?
APN — Advanced Practice Nurse
The umbrella title some states use for nurse practitioners and other advanced practice nurses.
CNP — Certified Nurse Practitioner
A certified nurse practitioner.

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Practice location Address checks out

5666 E State St
Rockford, IL 61108-2425
Phone: (815) 921-8929
Fax: (815) 227-2639
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 209.014740 (IL)

Record details

NPI number1558897421
Entity typeIndividual (Type 1)
GenderFemale
Credentials APN , CNP
Sole proprietorNo
NPI enumeratedMay 11, 2017
Last updated in NPPESMay 11, 2017
Mailing address5666 E State St, Rockford, IL 61108-2425

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Osf Multi-Specialty Group — 2128 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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