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

Timothy E Jessen, MD

Individual provider Internal Medicine Physician · NPI 1831165034

Timothy E Jessen, MD is an Allergy/Immunology in Freeport, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1983, 43 years ago. Practices with Freeport Memorial Hospital, a 140-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
43
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
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.

See every abbreviation used in this directory →

Practice location Address checks out

1010 Fairway Dr
Freeport, IL 61032-6600
Phone: (815) 599-6930
Fax: (815) 599-7613
Show map & directions

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

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence 036077588 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036077588 (IL)

Record details

NPI number1831165034
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 27, 2006
Last updated in NPPESOctober 23, 2017

Medicare enrollment

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

Medicare specialtyALLERGY/IMMUNOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1983 (43 years in practice)
Group practice Freeport Memorial Hospital — 140 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Freeport