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

Robert B Maguire, MD

Individual provider Internal Medicine Physician · NPI 1174571673

Robert B Maguire, MD is an Internal Medicine in Ottawa, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1990, 36 years ago. Practices with T4 Medical PLLC, a 29-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
36
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?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3056 E 1825th Rd
Ottawa, IL 61350-9037
Phone: (815) 488-1013
Fax: (773) 903-7515
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036-084603 (IL)

Record details

NPI number1174571673
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 5, 2006
Last updated in NPPESApril 13, 2026
Certification dateApril 13, 2026
Mailing address3056 E 1825th Rd, Ottawa, IL 61350-9037

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1990 (36 years in practice)
Group practice T4 Medical Pllc — 29 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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