Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mrs. Sarah Maas, APN, FNP-BC

Individual provider Family Nurse Practitioner · NPI 1942619762

Mrs. Sarah Maas, APN, FNP-BC is a Nurse Practitioner in Rockford, Illinois. Qualified in 2014, 12 years ago. Practices with Select Rehabilitation, LLC, a 2,028-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
12
Licensed in
IL
In the registry since
2014
What do these letters mean?
APN — Advanced Practice Nurse
The umbrella title some states use for nurse practitioners and other advanced practice nurses.
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

See every abbreviation used in this directory →

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Practice location Address checks out

4215 Newburg Rd
Rockford, IL 61108-6479
Phone: (815) 988-8500
Fax: (815) 977-5956
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 209.011742 (IL)

Record details

NPI number1942619762
Entity typeIndividual (Type 1)
GenderFemale
Credentials APN , FNP-BC
Sole proprietorNo
NPI enumeratedAugust 6, 2014
Last updated in NPPESJanuary 25, 2023
Certification dateJanuary 25, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Select Rehabilitation, Llc — 2028 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients52
Services billed 82 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Select Rehabilitation, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2028 clinicians in the practice; 12 are shown here.

Other providers in Rockford