Alexander J. Alonso, M.D.
Alexander J. Alonso is a Nephrology Internal Medicine specialist based in Peoria, IL with over 23 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE, PEDIATRIC MEDICINE
With over 23 years in internal medicine, Alexander J. Alonso, M.D. is a long-established nephrologist in Peoria. Trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 2003), he has been practicing for over 23 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and kidney disease (per CMS data).
At a glance
- Uses generic medications more than 42% of reporting doctors in Illinois
- Virtual visits available — no app or travel required
Older · 492dNPPES updated 2025-01-16 · verify NPI on CMS · Verify license at Illinois Department of Financial & Professional Regulation — Medical
Contact & Location
Practice Location
420 Ne Glen Oak Ave Ste 401, Peoria, IL 61603-3112
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
Generic Rx
↑ Higher = better86.8%
Illinois avg: 82.9 · US avg: 82.8
✓ Higher than most doctors nationally(+4 pts)
Typical range among reporting doctors in IllinoisHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
813
Unique beneficiaries
High volumePrescription Recipients
437
Patients prescribed
Prescriptions Written
3,500
Total claims
Total Medicare drug cost: $542k
Percentile rankings compared against 2,844 reporting peers in Illinois.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Chronic Kidney Disease.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+45%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+19%) — a focus area for this doctor
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+24%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-7%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+9%) — a focus area for this doctor
An irregular, often rapid heartbeat that increases the risk of stroke
US avg: 22%↑ More patients than average (+10%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2003
University of Illinois College of Medicine
Board certified · Jan 15, 2025
Self-reported via NPPES
23 years in practice
Experienced
Nephrologists treat kidney diseases including chronic kidney disease, kidney failure requiring dialysis, glomerulonephritis, kidney stones, and electrolyte disorders. They manage dialysis access and kidney transplant follow-up.
Taxonomy: 207RN0300X
Education & Training
University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (Class of 2003)
Virtual Internal Medicine Care With Alexander J. Alonso
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Alexander J. Alonso for blood pressure monitoring, cholesterol management, kidney care follow-ups — no travel to Peoria required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Alexander J. Alonso
Dr. Alonso is listed as active in the NPI registry with telehealth listed in Peoria, IL. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (309) 676-8123.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Alexander J. Alonso
Practice Location
420 Ne Glen Oak Ave Ste 401, Peoria, IL 61603-3112
Mailing Address
420 Ne Glen Oak Ave Ste 401, Peoria, IL 61603-3112
This is a provider directory. Contact the office directly to schedule appointments.
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