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Neurology in Portland, Oregon

Data updated monthly · Last refresh September 2026

164 Neurology providers practice in Portland, and 32% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Neurology providers in Portland

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Matthew Mccaskill, D.O.
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-5753
Dr. Melissa Mckalip, DO
Portland, OR · $66 in drug and device payments (2025) · (503) 494-9519
Dr. Meredith Frederick, M.D.
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-8211
Dr. Michael Lane, M.D.
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 963-3100
Dr. Michael Mega, MD, PHD
Portland, OR · No drug or device payments recorded (2025) · (503) 207-2066
Dr. Michael Scheipe, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 494-9519
Dr. Michael Zatt
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-7772
Dr. Michele Mass, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 494-7772
Dr. Michelle Cameron, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 494-5236
Dr. Michelle Nguyen, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 494-8211
Dr. Morad Daniel, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 220-8262
Dr. Neil Thomas, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 494-6976
Dr. Nicholas Calvo, M.D.
Portland, OR · $55 in drug and device payments (2025) · Telehealth · (503) 413-6166
Dr. Nicholas Okon, DO
Portland, OR · No drug or device payments recorded (2025) · (206) 604-8142
Dr. Nicholas Olney, M.D.
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 215-8580
Dr. Nizar Chahin, M.D.
Portland, OR · $6,623 in drug and device payments (2025) · Telehealth · (503) 494-7772
Dr. Norman Freeman, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 203-2021
Dr. Olga Gomez Siegert, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 216-1150
Dr. Osamu Muramoto, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 285-9321
Dr. Parvez Pohowalla, M.D., MPH
Portland, OR · No drug or device payments recorded (2025) · (503) 216-1280
Dr. Paula Gerber-gore, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 935-8500
Dr. Paul Motika, M.D.
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-5682
Dr. Penelope Hogarth, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 494-7772
Dr. Peter Brown, DO
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-7772
Dr. Peter Pressman, M.D.
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-7772
Dr. Pradeep Chandan, DO
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 216-1150
Dr. Prakash Ambady, M.D.
Portland, OR · $238 in drug and device payments (2025) · Telehealth · (503) 216-1150
Dr. Proleta Datta, MD PHD
Portland, OR · $435 in drug and device payments (2025) · Telehealth · (503) 494-7772
Dr. Raeann Bourscheid, MD
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-7772
Dr. Ratna Bitra, M.D.
Portland, OR · $245 in drug and device payments (2025) · Telehealth · (503) 494-7772
Dr. Rebecca Spain, MD
Portland, OR · $613 in drug and device payments (2025) · (503) 494-5759
Dr. Richard Rosenbaum, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 963-3100
Dr. Robert Crumpacker, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 256-3034
Dr. Robert Gross, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 228-5909
Dr. Robert Rosenbaum, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 963-3100
Dr. Rohit Das, MD MPH
Portland, OR · $311 in drug and device payments (2025) · (503) 494-7772
Dr. Ronald Mertens, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 285-9321
Dr. Ronald Pfeiffer, MD
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-7231
Dr. Ruth Thomson, D.O.
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 216-1150
Dr. Ruth Whitham, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 494-7772
Dr. Sabrena Ahmadi
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 494-7772
Dr. Scott Rewinkel, M.D.
Portland, OR · $492 in drug and device payments (2025) · Telehealth · (503) 494-8211
Dr. Scott Shakal
Portland, OR · No drug or device payments recorded (2025) · (503) 494-8211
Dr. Siegward Elsas, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 494-7772
Dr. Stephen Gancher, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 285-9321
Dr. Steven Day, MD
Portland, OR · $71 in drug and device payments (2025) · (503) 216-1150
Dr. Steven Johnson, MD, PHD
Portland, OR · No drug or device payments recorded (2025) · (503) 220-3416
Dr. Supna Saxena
Portland, OR · $139 in drug and device payments (2025) · (503) 494-7772
Dr. Sushant Puri, MD
Portland, OR · $165 in drug and device payments (2025) · Telehealth · (503) 497-4431
Dr. Suvarna Palla, M.D.
Portland, OR · No drug or device payments recorded (2025) · Telehealth · (503) 620-7358

Conditions Neurology providers in Portland, Oregon commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Neurology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Neurology providers are in Portland, Oregon?

There are 164 Neurology providers with active NPI records practicing in Portland, according to federal NPPES data refreshed monthly.

How many Neurology providers in Portland received drug or device company payments?

52 of 164 (32%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Neurology providers in Portland treat?

Neurology providers in Portland commonly treat migraine, epilepsy, multiple sclerosis, Parkinson disease, neuropathy and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Portland Neurology across Oregon

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.