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

Nathaniel Gregoire

Individual provider Surgical Physician Assistant · NPI 1477956811

Nathaniel Gregoire is a Physician Assistant in Springfield, Illinois. Qualified in 2014, 12 years ago. Practices with Springfield Clinic, LLP, a 679-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
12
Licensed in
IL
In the registry since
2014
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Practice location Address checks out

800 N 1st St
Springfield, IL 62702-3719
Phone: (217) 528-7541
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Physician Assistant (primary) Taxonomy 363AS0400X · Licence 085005246 (IL)

Record details

NPI number1477956811
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedSeptember 30, 2014
Last updated in NPPESMay 22, 2020
Certification dateMay 22, 2020

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Springfield Clinic, Llp — 679 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations9 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 patients183
Services billed 834 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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. Those with a page here are linked.

Colleagues at Springfield Clinic, LLP

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 679 clinicians in the practice; 12 are shown here.

Other providers in Springfield