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

Alexander J. Alonso, MD

Individual provider Nephrology Physician · NPI 1124152707

Alexander J. Alonso, MD is a Nephrology in Peoria, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2003, 23 years ago. Practices with Renalcare Associates, SC, a 48-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
23
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2007
Specialties on file
3
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

420 NE Glen Oak Ave Ste 401
Peoria, IL 61603-3112
Phone: (309) 676-8123
Fax: (309) 676-8455
Show map & directions

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

Additional practice locations (2)

  • 180 S Main Ste, Ste I, Canton, IL 61520 — (309) 676-8123
  • 1762 Washington Rd, Washington, IL 61571-2181 — (309) 676-8123

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 036115179 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036115179 (IL)
Hypertension Specialist Physician Taxonomy 207RH0005X · Licence 036115179 (IL)

Record details

NPI number1124152707
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 15, 2007
Last updated in NPPESJuly 21, 2026
Certification dateJuly 21, 2026
Mailing address420 Ne Glen Oak Ave Ste 401, Peoria, IL 61603-3112

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE, PEDIATRIC MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2003 (23 years in practice)
Group practice Renalcare Associates, S.C. — 48 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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