Ira F Fenton, DO

Rheumatology Internal Medicine

Ira F Fenton is a Rheumatology Internal Medicine specialist based in Libertyville, IL with over 48 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(847) 224-0165Libertyville, IL
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Ira F Fenton, DO runs an independent rheumatologist practice in Libertyville, IL. Trained at College of Osteopathic Physicians and Surgeons of Los Angeles (class of 1978), he has been practicing for over 48 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data).

At a glance

  • Uses generic medications more than 66% of reporting doctors in Illinois
  • Virtual visits available — no app or travel required
1 of 127 Internal Medicine providers in ILSee all Internal Medicine in Libertyville48+ years experienceNPI since 2005

Older · 758dNPPES updated 2024-04-26 · verify NPI on CMS · Verify license at Illinois Department of Financial & Professional Regulation — Medical

Contact & Location

Practice Location

1870 W Winchester Rd Ste 112, Libertyville, IL 60048-5365

Fax: (847) 367-7345
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.

Opioid Rx

↓ Lower = better

11.93%

Illinois avg: 4.5 · US avg: 5.1

Lower than most doctors nationally(+6.8 pts)

11.93% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Generic Rx

↑ Higher = better

90.4%

Illinois avg: 82.9 · US avg: 82.8

Higher than most doctors nationally(+7.6 pts)

Typical range among reporting doctors in Illinois

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

459

Unique beneficiaries

Standard volume

Prescription Recipients

706

Patients prescribed

Prescriptions Written

9,006

Total claims

Total Medicare drug cost: $1.34M

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
Lower than avg (-2%)68%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

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

Arthritis
Higher than avg (+9%)58%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↑ More patients than average (+9%) — a focus area for this doctor

Diabetes
Lower than avg (-4%)30%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↓ Fewer patients than average (-4%) — less common here

Ischemic Heart Disease
Lower than avg (-5%)27%

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

US avg: 31.7%

↓ Fewer patients than average (-5%) — less common here

Osteoporosis
Higher than avg (+7%)25%

Weakened bones that are more prone to fractures, common in older adults

US avg: 18.1%

↑ More patients than average (+7%) — a focus area for this doctor

Chronic Kidney Disease
Lower than avg (-9%)21%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

US avg: 29.6%

↓ Fewer patients than average (-9%) — less common here

Anxiety Disorders
Lower than avg (-13%)21%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↓ Fewer patients than average (-13%) — less common here

GeneralBehavioralNational avg

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

Industry Payment Transparency

$6.5k received from industry

206 transactions reported in 2024 ·High 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 Ira F Fenton'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 · 1978

    College of Osteopathic Physicians and Surgeons of Los Angeles

  2. Board certified · Apr 25, 2024

    Self-reported via NPPES

  3. 48 years in practice

    Senior practitioner

Internal MedicineAllopathic & Osteopathic Physicians

Rheumatologists treat autoimmune and inflammatory conditions including rheumatoid arthritis, lupus, psoriatic arthritis, gout, osteoarthritis, and vasculitis. They manage biologic therapies and joint-preserving treatments.

Taxonomy: 207RR0500X

Education & Training

College of Osteopathic Physicians and Surgeons of Los Angeles (Class of 1978)

Virtual Internal Medicine Care With Ira F Fenton

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

Schedule a virtual visit with Ira F Fenton for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Libertyville 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 Ira F Fenton

NPI records show Dr. Fenton as active with telehealth listed in Libertyville, IL. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (847) 224-0165.

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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