About Us
Quality care... for all seasons of life
Lassen Medical Group

Our mission is to provide comprehensive, compassionate, quality healthcare for our community to guide people of all ages toward wellness.
More than 50 Years of Healthcare Service
Lassen Medical Group has been caring for Tehama County residents since 1956, when it began as a family practice partnership. Today, 30 providers in family practice, osteopathic medicine, internal medicine, urgent care and pediatrics work together to provide a full spectrum of care for our patients.
State-of-the-Art Facility and Services, Close to Home
Our $7 million state-of-the-art medical building in Red Bluff features 60 comfortable treatment rooms, or you can be seen by our family practice doctors in Cottonwood if that location is more convenient. If you need non-emergency care but can't wait to make an appointment with our regular doctors, our Urgent Care is a practical choice. The wait is shorter and the cost is lower than an emergency room visit, and if you don't have a regular doctor, we'd be happy to refer you to one from the walk-in clinic.
Committed to Our Community
We're also proud to be a strong contributor to the local economy. Our medical providers and 125 employees provide a $14.7 million financial impact to our community.
- Departments
- • Family Practice/
- Osteopathic Medicine
- • Urgent Care/Walk-In Clinic
- • Pediatrics
- • Internal Medicine
- • Dermatology
- • Support Services
- Patient Center
- Request an Appointment
- New Patients
- What to Bring
- Find a Physician
- Forms
- Changes In Medicare
- Sign up for Health Updates
- Locations
- 2450 Sister Mary Columba Dr.
- Red Bluff, CA 96080
- Phone: 530-527-0414
- Google Map
- 20833 Long Branch Drive
- Cottonwood CA 96022
- Phone: 530-347-3418
- Google Map
- Doctor on Call
- Lassen Medical Group Has a Doctor On Call 24 hours a day, 7 days a week in the following specialties:
- • Family Medicine
- • Internal Medicine
- • Pediatrics
- After Hours
- For after-hour urgent healthcare needs, our patients can call one of our Answering Services:
- • Red Bluff - 530-529-7237
- • Cottonwood - 530-242-4295
- If it is an emergency, dial 911.


