Jonathan Warren, MD

Sleep Medicine Internal Medicine

Internal Medicine

Jonathan Warren is a Sleep Medicine Internal Medicine specialist based in Joliet, IL with over 45 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(815) 773-9090Joliet, IL
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Jonathan Warren, MD has practiced internal medicine for 45+ years, working in independent practice. A University of Chicago, Pritzker School of Medicine graduate since 1981, he brings 45+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and arthritis.

1 of 15 Internal Medicine providers in ILSee all Internal Medicine in Joliet45+ years experienceNPI since 2006

Recent · 81dNPPES updated 2026-03-03 · verify NPI on CMS · Verify license at Illinois Department of Financial & Professional Regulation — Medical

Contact & Location

Practice Location

2201 Glenwood Ave, Joliet, IL 60435-5574

Fax: (855) 705-5544
CMS Clinical Data

How Does This Doctor Compare?

Opioid Rx

↓ Lower = better

7.58%

Illinois avg: 4.5 · US avg: 5.1

Lower than most doctors nationally(+2.5 pts)

7.58% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Medicare Patients

515

Unique beneficiaries

High volume

Prescription Recipients

65

Patients prescribed

Prescriptions Written

330

Total claims

Total Medicare drug cost: $137k

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.

Patient Condition Panel

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 Arthritis.

Hypertension
Higher than avg (+5%)75%

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

High Cholesterol
Higher than avg (+5%)75%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+5%) — a focus area for this doctor

Arthritis
Higher than avg (+3%)52%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↑ More patients than average (+3%) — a focus area for this doctor

Diabetes
Higher than avg (+4%)38%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↑ More patients than average (+4%) — a focus area for this doctor

Ischemic Heart Disease
Lower than avg (-2%)30%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

US avg: 31.7%

↓ Fewer patients than average (-2%) — less common here

Mood Disorders
21%

Conditions affecting emotional state, including depression and bipolar disorder

Atrial Fibrillation
Lower than avg (-2%)20%

An irregular, often rapid heartbeat that increases the risk of stroke

US avg: 22%

↓ Fewer patients than average (-2%) — less common here

Anxiety Disorders
Lower than avg (-14%)20%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↓ Fewer patients than average (-14%) — less common here

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

Industry Payment Transparency

$248 received from industry

10 transactions reported in 2024 ·Low tier

View on CMS Open Payments →

Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.

Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Jonathan Warren's NPI.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 1981

    University of Chicago, Pritzker School of Medicine

  2. Board certified · Mar 2, 2026

    Self-reported via NPPES

  3. 45 years in practice

    Senior practitioner

Internal MedicineSleep Medicine in JolietAllopathic & Osteopathic Physicians

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Taxonomy: 207RS0012X

Education & Training

University of Chicago, Pritzker School of Medicine (Class of 1981)

Virtual Sleep Medicine Care With Jonathan Warren

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Jonathan Warren for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Joliet 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 Jonathan Warren

NPI records show Dr. Warren as active with telehealth listed in Joliet, IL. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (815) 773-9090.

Verified across 5 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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