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About St. Joseph Health

SJH provides a full range of care facilities including 16 acute care hospitals, home health agencies, hospice care, outpatient services, skilled nursing facilities, community clinics and physician groups. All of our hospital and home health entities are accredited by the Joint Commission. In our award-winning facilities, SJH maintains a "continuum of care," matched to the diverse needs of the urban centers, smaller cities and rural communities who depend on us every day.

Gerrard Ferrer, DO

4.5 out of 5 (43 Ratings)
  • Neurology
    (Board Certified)
Additional Language Spoken
Medical Groups & Affiliations
  • St. Joseph Health Medical Group
  • St. Joseph Health Medical Network
St. Joseph Health Petaluma - Pulmonary Disease & Sleep Medicine
1476 Professional Drive
Suite 504
Petaluma, CA 94954
Accepting New Patients

Primary Office

St. Joseph Health Petaluma - Pulmonary Disease & Sleep Medicine
1476 Professional Drive
Suite 504
Petaluma, CA 94954
Get Directions
(707) 781-7231
(707) 303-3996

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Neurology
      (Board Certified)
    Education & Training
    • College
      The University of Chicago
    • Medical School
      New York College of Osteopathic Medicine
    • Internship
      Maimonides Medical Center
    • Residency
      Albert Einstein College of Medicine
    • Fellowship
      Albert Einstein College of Medicine
    Areas of Interest
    Parkinson's Disease, Epilepsy, Neurology
  • Biography


    Dr. Ferrer is returning home to Sonoma County after a long hiatus. He left Santa Rosa at 4 years of age and was raised in Chicago. He received his Osteopathic medical degree in New York and he has trained in various areas throughout the East Coast from Philadelphia, New York City, and New Jersey. He completed his residency training in general adult neurology and fellowship in neurophysiology at Albert Einstein College of Medicine in The Bronx. He comes to northern California after 16 years of private practice in northern New Jersey. He enjoys hiking, the great outdoors, and spending quality time with his family and his golden lab Charlie.
  • 23-Oct-2019
    Dr. Ferrer is an excellent neurologist and my health has improved dramatically under his care.
    I like *Dr. Ferrer.
    His office called me to come in sooner, in fact that day if I could make it. They accommodated me having to come from a different county (I don't live really close). I immediately and arrived on time when I said I can get there by this time. They saw me promptly and I received the results from the test that I do have MS. He explained the medicine he is prescribing and that his office will set me up with some free sample as it take time before I will be receiving the medicine. He also told me that I will need to come in every 3 month to check my white blood cell count. Also, if this medicine isn't working for me the next step would be steroids. He also stated that these medications are NOT cures and that there currently re no curse but they are trying to prevent attacks. However there is no guarantee that they will prevent all or any attacks. (My own words this is the best we got right now to address this phenomena in the human body.) I apricate the promptness in finding out what is going on with me and especially the promptness of treating it once it was discovered/confirmed. I already had an appointment for December concerning this matter and upon asking if I should keep it was told to keep it. It will be my first check up from taking the medicine. You might think it is longer than 3 months but I still haven't received the medicine so it will work out just fine. Oh, yeah he told me no stress. I am trying to be stress free. Positive attitude and all. When I told my dad, he said I should get a paper stating that. I might ask at my next appointment.
    I am very happy with Dr. Ferrer's visit and the time he took to become acquainted with me, a new patient.
    Dr. Ferrer was very nice and explained some things with me when I asked about them. He seemed to know everything about my problem. I liked him very much. But I could not get an appointment with him for about three months from when I had had been told to see him. Three months seemed to be very long for a followup on my stroke!
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