Summary

Dr. Dennis Kellar specializes in pulmonology, focusing on respiratory conditions and sleep disorders. They completed their medical residency at Cook County Hospital, building expertise in diagnosing and treating complex lung and breathing conditions. Dr. Kellar speaks English and serves patients throughout the greater Chicago area.

Dr. Kellar maintains affiliations with Ascension Saint Alexius and practices at multiple Northwestern Medicine Regional Medical Group locations in South Barrington, Crystal Lake, Huntley, and McHenry, Illinois. They treat patients with sleep apnea, obstructive sleep apnea, and sleep apnea in children. Their practice includes pulmonary function testing, bronchodilator reversibility testing, and asthma challenge tests to help diagnose breathing difficulties. Patients rate Dr. Kellar 3.4 out of 5 stars on average.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.4
  • 48 insurance plans accepted
  • speaks English
  • Cook County Hospital
  • 14 written reviews
  • 1 specialty
  • 11 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 8 office locations

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Dennis F Kellar has 8 locations

Northwest Pulmonary & Sleep Medicine

4 Executive Ct Ste 3South Barrington, IL 60010
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

Northwest Pulmonary & Sleep Medicine

360 Station DrCrystal Lake, IL 60014
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

Nw Pulmonary And Sleep Medicine Sc

360 Station Dr Ste 230Crystal Lake, IL 60014

Dennis F Kellar Md

1340 Ryan PkwyAlgonquin, IL 60102

Northwestern Medicine Regional Medical Group

10400 Haligus Rd Prentice Women's Hospital, 4th FlrHuntley, IL 60142

Northwestern Medicine Regional Medical Group

4201 Medical Center Dr Prentice Women's Hospital, 4th FlrMcHenry, IL 60050

Northwestern Medicine Regional Medical Group

10400 Haligus RdHuntley, IL 60142

Northwestern Medicine Regional Medical Group

4201 W Medical Center DrMchenry, IL 60050

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Dr. Dennis F Kellar, MDDr. Ashby Miner Jordan, MDSalud PediatricsDr. Peter Conrad Freebeck, MD
PulmonologyCritical Care MedicinePediatricsPulmonology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.4 
3.9 
4.4 
3.8 
29 Years of Experience 32 Years of Experience 40 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks Spanish, German Speaks English, Spanish Speaks English, Spanish
South Barrington , ILElgin , ILAlgonquin , ILWestmont , IL
Med School: University Of South Carolina School Of Medicine Columbia Med School: Universidad Central De Venezuela Escuela De Medicina Luis Razetti Med School: Univ Of Chicago Division Of Biological Sciences Pritzker School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Dennis F Kellar

  • Accepts Medicare
  • AARP
  • Aetna
  • Aetna Better Health
  • Aetna Better Health - Medicaid
  • Aetna Better Health - Medicaid (Managed)
  • Anthem Blue Cross and Blue Shield of Georgia
  • Ascension Health
  • Ascension Health - PPO
  • Assurant Health
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Illinois
  • Blue Cross Blue Shield of Nebraska
  • CHAMPVA
  • Cigna
  • Cigna-HealthSpring
  • Dean Health Plan
  • Devoted Health
  • Golden Rule
  • Health Alliance
  • Healthlink
  • Healthlink - PPO
  • HealthPartners - EPO
  • Humana
  • Humana - Medicare (Advantage HMO)
  • Medica
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meridian Health Plan
  • Meridian Health Plan - Medicaid (Managed)
  • Meritain Health
  • Mutual of Omaha
  • Nippon Life Benefits
  • Partners Health Plan - HMO
  • Priority Health
  • Provider Partners Health Plan
  • STLDentalPlan| LLC
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • UnitedHealthOne
  • Wellcare
  • Wellcare - Medicaid (Managed)
  • Zing Health
  • Zing Health - HMO

Medical Specialties

Dr. Dennis F Kellar has the following specialty

Specialty Expertise

Dr. Dennis F Kellar has the following 11 areas of expertise

  • Angiographic Visualization
  • Asthma
  • Chest Infection
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Emphysema
  • Insomnia
  • Pneumonia
  • Pulmonary Function Test
  • Sleep Disorders
  • Smoking Cessation
  • Tuberculosis (TB)

Certifications, License, & Education

Education & Training

Residency

Completed their residency at Cook County Hospital.

NPI Number

Dr. Kellar's NPI number is 1679683866.

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Frequently Asked Questions

How can I make an appointment with Dr. Dennis Kellar?
You can find contact information for Dr. Dennis Kellar here on Vitals.
Does Dr. Dennis Kellar accept virtual/telehealth appointments?
Dr. Dennis Kellar has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Dennis Kellar's office located?
Dr. Dennis Kellar's office is located at 4 Executive Ct Ste 3, South Barrington, IL, 60010.
Which hospitals is Dr. Dennis Kellar affiliated with?
Dr. Dennis Kellar is affiliated with Ascension Saint Alexius.
What languages does Dr. Dennis Kellar speak?
Dr. Dennis Kellar speaks English.

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