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

Jon Niles Jessen, MD

Individual provider Personal Emergency Response Attendant · NPI 1912970823

Jon Niles Jessen, MD is an Emergency Medicine in Springfield, Illinois. Graduated from Southern Illinois University School of Medicine in 1984, 42 years ago. Practices with Midwest Emergency Department Specialists Ltd, a 61-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
42
Trained at
Southern Illinois University School of Medicine
Licensed in
IL
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

701 N 1st St
Springfield, IL 62781-0001
Phone: (217) 522-3122
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036071861 (IL)
Personal Emergency Response Attendant Taxonomy 146D00000X · Licence 036071861 (IL)

Record details

NPI number1912970823
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 10, 2006
Last updated in NPPESApril 29, 2024
Certification dateApril 29, 2024
Mailing addressPo Box 955277, Saint Louis, MO 63195-5277

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolSOUTHERN ILLINOIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Midwest Emergency Department Specialists Ltd — 61 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare