Dr. Derek W. Clark
- Gender: Male
- Experience: 11 years
- Graduated from: West Virginia University School Of Medicine
- Graduation year: 2010
- Sole propriator: No
- NPI: 1518283589
Dr. Derek W. Clark M.D.
Neurologist
He is located at 9135 Southwest Barnes Road Suite 461 in Portland, OR 97225. Can help patients with the following: Encephalopathy, Hot Flashes, Meralgia Paresthetica, Peptic Ulcer, Pinched Nerve, Seizures. His National Provider Identifier (NPI) number is 1518283589. Appointment can be made via the phone number (503) 216-1150. He is affiliated with 2 practices and 2 hospitals.
Conditions treated
Dr. Derek William Clark, being an neurologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Derek W. Clark.
- Abdominal Pain
- Acute Pain
- Alzheimer's Disease
- Amnesia
- Amyotrophic Lateral Sclerosis (ALS)
- Anemia
- Aphasia
- Arthritis
- Asthma
- Atherosclerosis
- Autism
- Bladder Control
- Brain Aneurysm
- Brain Damage
- Brain Hemorrhage
- Cerebral Palsy (CP)
- Cervical Radiculopathy
- Charcot-Marie-Tooth Disease (CMT)
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Claudication
- Cluster Headaches
- Common Cold
- Complex Regional Pain Syndrome
- Concussion
- Constipation
- Creutzfeldt-Jakob Disease (CJD)
- Cystitis
- Degenerative Disc Disease (DDD)
- Dementia
- Diarrhea
- Double Vision
- Dyslexia
- Dystonia
- Early Onset Alzheimers
- Edema
- Encephalitis
- Encephalopathy
- Epilepsy
- Face Blindness
- Fainting
- Febrile Seizure
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Guillain-Barre Syndrome (GBS)
- Head Injury
- Headache
- Heart Disease
- Herniated Disc
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Huntington's Disease (HD)
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Low Back Pain
- Lumbar Spinal Stenosis
- Mad Cow Disease
- Meningitis
- Meralgia Paresthetica
- Migraine
- Motion Sickness
- Multiple Sclerosis (MS)
- Myasthenia Gravis (MG)
- Myofascial Pain Syndrome (MPS)
- Nausea and Vomiting
- Nerve Damage
- Neuropathic Pain
- Obesity
- Optic Neuritis
- Osteoporosis
- PANDAS
- Paralysis
- Parkinson's Disease
- Peptic Ulcer
- Peripheral Nerve Injuries
- Peripheral Nerve Tumors
- Peripheral Neuropathy
- Pinched Nerve
- Polio
- Prescription Refill
- Progressive Neurological Disorders
- Pseudotumor Cerebri
- Sciatica
- Seizures
- Stiff Person Syndrome (SPS)
- Stroke
- Tardive Dyskinesia
- Tension Headache
- Tics
- Tinnitus
- Tourette Syndrome
- Transient Ischemic Attack (TIA)
- Traumatic Brain Injury
- Tremor
- Trigeminal Neuralgia (TN)
- Urethritis
- Urinary Tract Infection (UTI)
- Vertigo
- Vestibular Testing
- Wernicke-Korsakoff Syndrome
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Derek W. Clark as in-network for the following 2026 plans.
Health plans
Providence Health Plan
Network data as of Sep 15, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| HSA-E Qualified 7500 Bronze - Signature Network | EPO · Expanded Bronze | EPO | Not accepting new patients |
| Providence Oregon Standard Bronze Plan - Signature Network | EPO · Expanded Bronze | EPO | Not accepting new patients |
| Providence Oregon Standard Gold Plan - Signature Network | EPO · Gold | EPO | Not accepting new patients |
| Providence Oregon Standard Silver Plan - Signature Network | EPO · Silver | EPO | Not accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Derek W. Clark is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Derek W. Clark is enrolled to bill Medicare as a Practitioner - Neurology .
Bills through: Providence Health & Services Oregon
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
WEST VIRGINIA UNIVERSITY SCHOOL OF MEDICINE
Graduated in 2010Additional Specialities
- Internist
Looking for more Neurologists?
Out of the 31 neurologists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Female
- Address: Suite 390 9427 Southwest Barnes Road Portland, 97225, OR
- Gender: Female
- Address: Suite 461 9135 Southwest Barnes Road Portland, 97225, OR
- Gender: Male
- Address: Suite 390 9427 Southwest Barnes Road Portland, 97225, OR
- Gender: Male
- Address: Suite 461 9135 Southwest Barnes Road Portland, 97225, OR
- Gender: Female
- Address: 5050 Northeast Hoyt Street Suite 315 Portland, 97213, OR
- Gender: Male
- Address: Suite 461 9135 Southwest Barnes Road Portland, 97225, OR
- Gender: Male
- Address: Suite 836 9155 Southwest Barnes Road Portland, 97225, OR
- Gender: Male
- Address: Suite 330 11790 Southwest Barnes Road Portland, 97225, OR
- Gender: Male
- Address: Suite 595 9427 Southwest Barnes Road Portland, 97225, OR
- Gender: Male
- Address: 9427 Southwest Barnes Road Portland, 97225, OR
Questions & Answers
Where can you meet with Dr. Derek William Clark?
Dr. Derek William Clark's office is located at 9135 Southwest Barnes Road Suite 461 in Portland, OR 97225.
Does Dr. Derek William Clark accept insurance?
Dr. Derek William Clark is listed in-network for 4 ACA Marketplace (Obamacare/HealthCare.gov) plans from Providence Health Plan. See the Marketplace plans section for details.
Has Dr. Derek William Clark affiliation with hospitals?
Dr. Derek William Clark is affiliated with SWEDISH MEDICAL CENTER - FIRST HILL/BALLARD. For the full list of hospitals see this list.
Does Dr. Derek William Clark have affiliation with practices?
Dr. Derek William Clark is affiliated with Swedish Physician Division. For the full list of practices see this list.
What conditions does Dr. Derek William Clark treat?
Dr. Derek William Clark provides treatment for Encephalopathy, Hot Flashes, Meralgia Paresthetica, Peptic Ulcer, Pinched Nerve, Seizures. For the full list see this list.