Neurology at St. Joseph Health Medical Group

Neurologists are specialty experts skilled in the non-surgical treatment of diseases of the nervous system and often serve as consultants to other treating physicians. Diseases and conditions we treat include:

  • Alzheimer's disease and related disorders of aging and memory
  • Parkinson's Disease and other movement disorders
  • Headache and neurological pain
  • Neuromuscular disease and spine disorders
  • Multiple sclerosis
  • Seizures
  • Stroke

At St. Joseph Health Medical Group, our board-certified general neurologists are committed to providing the finest evidence-based medicine and the latest and most effective treatment options for patients from the North Bay to the Eureka coast. Equally important, we take pride in meeting each patient’s health needs with well-coordinated and compassionate care.

Conditions Treated

Alzheimer's disease


Multiple sclerosis

Neuromuscular disease

Parkinson's Disease



Our Providers

Our Provider

Zachary R. Lewton, MD
Zachary R. Lewton, MD
Neurology, Sleep Medicine
City:  Santa Rosa
4.7 out of 5

Meet Our Program Director

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Our Locations

Napa - Neurology

Napa - Neurology

1100 Trancas St.,
Suite 205
Napa, CA 94558
Petaluma - Pulmonary Disease, Sleep Medicine, Neurology

Petaluma - Pulmonary Disease, Sleep Medicine, Neurology

1476 Professional Dr.,
Suite 504
Petaluma, CA 94954
Santa Rosa - Neurology - Sonoma Ave.

Santa Rosa - Neurology - Sonoma Ave.

990 Sonoma Ave,
Suite 17
Santa Rosa, CA 95405

Mon - Fri: 8:30 a.m. - 5:00 p.m. (Closed for lunch from 12:00 p.m. - 1:30 p.m.)

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Eureka - Neurology

Eureka - Neurology

2828 O'Neil Lane,

Eureka, CA 95503