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

Jeffrey C Tanzi, DO

Individual provider Family Medicine Physician · NPI 1891706107

Jeffrey C Tanzi, DO is a Family Practice in Ottawa, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2005, 21 years ago. Practices with Morris Hospital, a 115-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
21
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1306 Gemini Cir Ste 1
Ottawa, IL 61350-1695
Phone: (815) 433-9200
Fax: (815) 705-1716
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 036.121629 (IL)

Record details

NPI number1891706107
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 11, 2006
Last updated in NPPESOctober 17, 2022
Certification dateOctober 17, 2022
Mailing address725 School St Ste A, Morris, IL 60450-1207

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2005 (21 years in practice)
Group practice Morris Hospital — 115 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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