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
Find Dr. Hagen's expertise for a condition
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- Distinguished
- Central Sleep ApneaDr. Hagen isDistinguished. Learn about Central Sleep Apnea.
- Obstructive Sleep ApneaDr. Hagen isDistinguished. Learn about Obstructive Sleep Apnea.
- Experienced
- Discoid Lupus Erythematosus (DLE)Dr. Hagen isExperienced. Learn about Discoid Lupus Erythematosus (DLE).
- DrowsinessDr. Hagen isExperienced. Learn about Drowsiness.
- Excessive Daytime SleepinessDr. Hagen isExperienced. Learn about Excessive Daytime Sleepiness.
- InsomniaDr. Hagen isExperienced. Learn about Insomnia.
- Irregular Sleep-Wake SyndromeDr. Hagen isExperienced. Learn about Irregular Sleep-Wake Syndrome.
- NarcolepsyDr. Hagen isExperienced. Learn about Narcolepsy.
View All 8 Experienced Conditions
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