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

Teresa A. Fesen, FNP-BC

Individual provider Family Nurse Practitioner · NPI 1437402575

Teresa A. Fesen, FNP-BC is a Nurse Practitioner in Springfield, Illinois. Qualified in 2012, 14 years ago. Practices with SIU Physicians and Surgeons Inc, a 316-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
14
Licensed in
IL
In the registry since
2012
What do these letters mean?
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

751 N Rutledge St Ste 0300
Springfield, IL 62702-4968
Phone: (217) 545-8000
Fax: (217) 545-1229
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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 209009955 (IL)

Record details

NPI number1437402575
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-BC
Sole proprietorNo
NPI enumeratedOctober 25, 2012
Last updated in NPPESSeptember 29, 2026
Certification dateOctober 21, 2020

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Siu Physicians And Surgeons Inc — 316 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 patients103
Services billed 323 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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.

Colleagues at SIU Physicians and Surgeons Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 316 clinicians in the practice; 12 are shown here.

Other providers in Springfield