Pearl District
Open until 7pm1420 NW Lovejoy St, Portland OR 97209
Dr. Karlsen's hours here
- Wednesday
- 8:30am – 5:00pm
- Thursday
- 8:30am – 5:00pm
2.4 mi away(503) 555-0142
Directions to Pearl DistrictChief of Neurology, with a headache clinic that takes most of his week. He sees the migraine, the tremor and the numbness that a scan has already come back normal on.

Clinical philosophy
A neurological examination done properly tells you where the problem is. Imaging tells you what it is, and only once you know where to look — which is why he examines first and orders second.
A normal MRI is not the end of a consultation. Most headache and most dizziness has no structural cause and a very treatable one, and being told 'nothing showed up' without a plan helps nobody.
He writes the diagnosis down in plain words and gives you the sheet. Neurological terms are long and frightening and most of them mean something ordinary.
Focus areas
Fourteen things he treats regularly. Anything outside them he refers inside the practice rather than sending you to find someone yourself.
Training
Nineteen years of education, research and certification, and continuous recertification since.
Oslo. Undergraduate work on cortical spreading depression, which is still what he thinks about.
Oslo. Clinical years at Rikshospitalet.
Stockholm. Thesis on trigeminal sensitisation in chronic migraine.
Portland. Four years, with a final-year headache fellowship.
American Board of Psychiatry and Neurology. Recertified in 2019.
Licence MD34188. He opened the headache clinic that now runs three days a week.
Credentials
Current as of March 2026. Each body below publishes its own registry, so every line here is verifiable without asking us.
Board certified in neurology since 2009, recertified in 2019. Diplomate no. 198–6614.
Licensed in Oregon since 2016, licence MD34188. No disciplinary action on record.
Fellow since 2015. Sits on the headache and facial pain section's education group.
Member since 2006. Contributed to the third edition's field-testing programme.
Selected work
Four papers and three awards, most recent first. A full bibliography is available on request.
Everything above is indexed in PubMed or the awarding body's own register.
Request full CV for Dr. KarlsenWhere to find him
1420 NW Lovejoy St, Portland OR 97209
2.4 mi away(503) 555-0142
Directions to Pearl District1200 NE Multnomah St, Portland OR 97232
3.8 mi away(503) 555-0177
Directions to Lloyd CenterAvailability
Live availability for this week. Monday and Tuesday are ward and reporting days, so clinic starts Wednesday.
Reviews
4.8
from 103 reviews
Three people had told me my scan was normal and left it there. He was the first to say what was actually causing it.
Maya EllisonPatient since 2020He spent twenty minutes examining me before he touched the computer. I have not had that since medical school stories.
Daniel ChoPatient since 2022I left with a sheet of paper explaining my diagnosis in normal words. My mother read it and stopped panicking.
Rosa IglesiasPatient since 2019Elsewhere in the practice



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