Hours & Contact

Mobile Health Services

Office Address
2426 Buhne Street
Eureka, CA  95501

To make an appointment call: (707) 443-4666

Hours: Monday–Friday 8:00am–5:00pm


Using a combination of a fully equipped mobile van and ODCHC’s eight fixed clinic sites, homeless individuals receive comprehensive care to include:

General medical care for all ages
Family Planning
Mental /Behavioral Health
Substance abuse treatment
Case management services
Skilled nursing services
Laboratory services
Health education
Referrals to community resources

Our mobile unit is a custom designed 38 foot motor home with two exam rooms, a restroom, lab, pharmacy, a wheel chair lift and is supplied with the same equipment as a family doctor’s office. The fully staffed mobile unit visits each community site on a regular schedule. We offer medical services to patients of all ages, including patients who are homeless, in transitional housing, or patients who have difficulty scheduling appointments. We also provide medical services to migrant and seasonal farm workers and their families.

We offer walk-in appointments in addition to our scheduled appointments at all locations.

After Hours Care
If you have an urgent medical problem call (707)443-4666 when the clinic is closed and your call will be transferred to a provider.  Medical providers will advise if an Emergency Room visit is necessary and give you medical advice.  After hours medical providers do not handle routine medical refill requests.
Nurse Advise Line

Any questions about your health care, lab results, referrals, please call us  (707) 443-4666

In case of an EMERGENCY call 911
Latino Health Services

We have promotores (community health workers) to help guide you through the system with the following services:

Health coaching
Support groups
Family issues
Culturally sensitive issues
Referrals for professional counseling available in Spanish

HIV Services

HIV clinic services are available for Eureka patients at the Mobile Health Office (2426 Buhne Street).  Call 443-4666 for more information.

Upcoming Mobile Medical Stops

Betty’s Blue Angel Village

February 26 @ 8:30 am - 1:00 pm
|Recurring Event (See all)

An event every week that begins at 8:30am on Monday, repeating until February 26, 2018

St. Vincent De Paul Free Dining Facility, Eureka

February 27 @ 8:30 am - 12:00 pm
|Recurring Event (See all)

An event every week that begins at 8:30am on Tuesday, repeating until February 27, 2018

Calvary Lutheran Church, Eureka

February 27 @ 1:00 pm - 4:00 pm
|Recurring Event (See all)

An event every week that begins at 1:00pm on Tuesday, repeating until February 27, 2018

St. Vincent De Paul Free Dining Facility, Eureka

February 28 @ 8:30 am - 4:30 pm
|Recurring Event (See all)

An event every week that begins at 8:30am on Wednesday, repeating until February 28, 2018


Jasen Christensen, MD
Jasen Christensen, MDPsychiatrist
More information coming soon.
Gail Hovorka, MD
Gail Hovorka, MDDoctor of Medicine
More information coming soon.
Don Johnson
Don Johnson
Don Johnson has lived in the Eureka and Arcata area for over 25 years. He graduated from College of the Redwoods with an AA degree in Social Science and a certificate in Addiction Studies and holds and M-RAS (Masters Level Registered Addiction Specialist certification). Don worked in this community for 8 years in the addiction recovery field, but during this time felt further education was in order. He went back to school and soon transferred to Humboldt State University to study psychology emphasizing counseling. He graduated from HSU with a BA in psychology in 2012. Don’s passion is in helping those who are in need, but most of all in helping addicts to live a drug free life worth living and in doing so helping our community to become healthy.

Don’s hobbies include computer technology, playing board games, and laughing.

Dr. Isabel Lopes
Dr. Isabel LopesDoctor of Medicine
Dr. Isabel Lopes attended Loma Linda University School of Medicine. She has worked as a clinical laboratory scientist and recently completed an infectious diseases fellowship at the University of Maryland. Dr. Lopes will be working at the Telehealth and Visiting Specialist Center as well as Redwood Community Health Center.
Carol McNeill
Carol McNeill
Carol McNeill, our Mental Health Counselor, has worked in social services since 1987 providing assistance to teens, low income women, homeless individuals, and people with disabilities. She received her Masters in Marriage and Family Therapy from Humboldt State University. “I help patients find their strengths and develop new skills as they cope with crises and plan their futures. I feel privileged to be able to work with these individuals and be with them in their hard times as well as good times as they learn to use their personal power and dignity.” Carol has lived in several major cities in the past and is delighted to now be living in Humboldt near the Redwoods and the ocean.
Rohan Mehta, MD
Rohan Mehta, MDDoctor of Medicine
More information coming soon.
Karen O Shell, MD
Karen O Shell, MDBehavioral Health Care Provider
More information coming soon.
Kathy Smith, FNP
Kathy Smith, FNPFamily Nurse Practitioner
More information coming soon.
Maria Spetzler, PA-C
Maria Spetzler, PA-CPhysician Assistant
Maria Spetzler is a home grown Medical Practitioner for Open Door, having worked as a Medical Assistant and Lab Manager for the Clinics since 1993. In 2000, Maria was accepted to the PA program at UC Davis School of Medicine. She returned to the Open Door team as a PA-C in 2002. She has developed an emphasis in diabetes management, and now offers focused consultations for patients with diabetes who are having self management difficulties.
Tammy Pittayathikhun, FNP
Tammy Pittayathikhun, FNP
Katy Wilson, MD
Katy Wilson, MDDoctor of Medicine
Katy Wilson attended Wesleyan University for her undergraduate studies and the University of Rochester for her medical degree. She is certified with the American Board of Psychiatry and Neurology. She has provided psychiatric care for Del Norte and Humboldt counties for the past several decades and will be joining us at the Telehealth and Visiting Specialist Center.
Kelvin Vu, DO
Kelvin Vu, DO
Dr. Kelvin Vu graduated from UCLA with a major in Psychobiology and a minor in Education Studies. He received his medical degree from Western University and completed his residency training in Family Medicine at UC Davis Medical Center, where he also served as Chief Resident in his last year.

Dr. Vu came to Open Door Community Health Centers with the goal of practicing full-spectrum family medicine while providing care to an underserved community. He is excited to serve as the medical director for Mobile Health Services. In his free time, he enjoys traveling the world with his wife (who is a physician at McKinleyville Community Health Center), participating in medical trips to third world countries, watching movies, and playing sports.