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MACT Health MACT Health
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50+ Years
experience
Your Trusted Healthcare Provider in the Sierra Nevada Region
MACT Health has been dedicated to improving the health status of American Indian and Alaskan Native populations since 1969, while also serving the broader community with comprehensive healthcare solutions. Our organization operates under agreements with the Indian Health Service, delivering culturally sensitive care through a network of clinics across five Sierra Nevada counties. With expertise in medical, dental, behavioral health, optometry, and chiropractic services, we combine traditional well-being practices with modern healthcare standards.

Our team of qualified professionals maintains a patient-centered approach, ensuring accessible care through 14+ facilities spanning 5,312 square miles of rural California. We accept MediCal, Medicare, and private insurance to maximize healthcare accessibility for all residents.
Services
Medical Services Dental Care Behavioral Health Optometry Chiropractic Care Pharmacy Services Urgent Care Women's Health Dental Lab Extended Services
Details
  • Year established: 1969
Highlights and features
  • We serve diverse communities with culturally sensitive healthcare approaches
  • Our network includes 14+ clinics across five California counties
  • We accept MediCal, Medicare, and private insurance plans
  • Our team includes experienced professionals in multiple medical specialties
  • We combine traditional wellness practices with modern healthcare standards
What people say
Short wait times Awesome staff Excellent dental work Friendly professionals Great pharmacy service
Update Listing
Services
Medical Services
Our medical clinics provide comprehensive primary care services including routine check-ups, chronic disease management, and preventive care. Patients receive personalized treatment plans from experienced physicians who coordinate with specialists across our network. The service emphasizes accessible, high-quality care for all ages through facilities in five California counties.
Dental Care
Dental services include routine check-ups, restorative treatments, and specialized dental care across multiple locations. Our dentists use modern equipment to ensure long-lasting results, with patient testimonials highlighting excellent workmanship and positive experiences over decades. Services are available for both emergency and scheduled dental needs.
Behavioral Health
Integrated behavioral health services address mental health needs through counseling and therapy programs. Our dedicated team provides professional support for various psychological conditions, focusing on holistic treatment approaches. Services are available at all clinic locations with coordinated care options.
Optometry
Comprehensive vision care includes eye exams, corrective lens prescriptions, and ocular health assessments. Our optometrists deliver professional eye care services using advanced diagnostic equipment. The service emphasizes preventive care and treatment of vision-related conditions across all age groups.
Chiropractic Care
Chiropractic services focus on musculoskeletal health through manual adjustments and complementary therapies. The treatment approach aims to improve mobility, reduce pain, and enhance overall wellness. Services are available at multiple locations with experienced practitioners specializing in non-invasive care methods.
People
John Alexander
Executive Director
John Alexander leads MACT Health with over 20 years of experience in tribal healthcare administration. He oversees operations across 14+ clinics, focusing on expanding access to culturally competent care while maintaining financial sustainability. His leadership emphasizes community engagement and quality improvement initiatives.
Questions
What services does MACT Health offer?
MACT Health provides medical, dental, behavioral health, optometry, chiropractic, pharmacy, and urgent care services across five California counties.
Do you accept MediCal or Medicare?
Yes, we accept MediCal, Medicare, and most private insurance plans at all our clinic locations.
How can I become a patient?
Complete our online new patient intake form or contact your preferred clinic location to schedule your first appointment.
Where are your clinics located?
We operate 14+ clinics across Mariposa, Amador, Alpine, Calaveras, and Tuolumne Counties in the Sierra Nevada region.
What pharmacy services are available?
Our full-service pharmacy in Sonora fills prescriptions with experienced staff providing medication counseling and insurance coordination.
Do you offer after-hours care?
While most clinics operate 8am-5pm Mon-Fri, we offer urgent care services during regular business hours for non-life-threatening conditions.
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Reviews (4)
Monte C.
Apr 30, 2021 Report
When I first met the optometrist at Mact Health I was told my glasses and examination would be $385, which I paid. Then I get a letter saying I owe an additional $115.00 plus $26.20. My glasses now are going to cost over $500. I will go to Sierra Eye Care next time.
Trisha D.
Dec 11, 2020 Report
The best of the best! This office is clean, professional and honest. Gina Vanderhorst, the dental hygienist, did an AMAZING job cleaning my teeth. This was by far the best cleaning I ever had. She administered the longest and most detailed cleaning I ever had. Not only was she extremely thorough, she has one of the most pleasant personalities, always checking in with me on my level of pain (no pain at all), very punctual, and she was very informative about my gum health. The staff, including Dr. B, are simple excellent. Thank you Gina, Dr. B (excellent) and the sweet receptionists at Mact Dental Clinic for your extremely professional service.
Paige Vidak
Jun 17, 2020 Report
Amazing staff, not only are they efficient with their time they are amazing with both myself and my son. They remember us and are always smiling and have positive attitudes here. I would recommend this dentist office as a whole above any I've ever had before.
Tamra F.
May 15, 2020 Report
Took my 3 year old son here for his well child and he had to have shots. His provider was not only patient but kind, and the MAs and Nurses were so so good at their job. He didn't even cry when he got the shots!