
Overview
Keith Leitzen is an Otolaryngologist in Lake Forest, Illinois. Dr. Leitzen has been practicing medicine for over 16 years is highly rated in 1 condition, according to our data. His top areas of expertise are Familial Deafness, Infant Hearing Loss, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), and Nonsyndromic Hearing Loss.
His clinical research consists of co-authoring 1 peer reviewed article. MediFind looks at clinical research from the past 15 years.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- INSURANCE PLAN
- PPO
- EPO
- HMO
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE PDP
- EPO
- HMO
- POS
- PPO
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
Loyola University Medical Center
John Leonetti is an Otolaryngologist in Elmhurst, Illinois. Dr. Leonetti is highly rated in 28 conditions, according to our data. His top areas of expertise are Schwannoma, Facial Paralysis, Acoustic Neuroma, Mastoidectomy, and Nerve Decompression. Dr. Leonetti is currently accepting new patients.
Robert Kern is an Otolaryngologist in Chicago, Illinois. Dr. Kern has been practicing medicine for over 40 years is highly rated in 8 conditions, according to our data. His top areas of expertise are Nasal Polyps, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Asthma, Endoscopy, and Nerve Decompression.
Bruce Tan is an Otolaryngologist in Chicago, Illinois. Dr. Tan has been practicing medicine for over 21 years is highly rated in 7 conditions, according to our data. His top areas of expertise are Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Nasal Polyps, Sinusitis, Endoscopy, and Nerve Decompression.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- Familial DeafnessDr. Leitzen isAdvanced. Learn about Familial Deafness.
- Experienced
- Chronic Rhinosinusitis with Nasal Polyps (CRSwNP)
- Deafness Hypogonadism SyndromeDr. Leitzen isExperienced. Learn about Deafness Hypogonadism Syndrome.
- DFNB1Dr. Leitzen isExperienced. Learn about DFNB1.
- EmpyemaDr. Leitzen isExperienced. Learn about Empyema.
- HyperparathyroidismDr. Leitzen isExperienced. Learn about Hyperparathyroidism.
- Infant Hearing LossDr. Leitzen isExperienced. Learn about Infant Hearing Loss.

