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LRCHC has an excellent primary care team – physician and midlevel- of medical providers who

provide health care diagnosis and treatment. They work with a team of nursing and lab/x-ray personnel

to assist patients and perform medical assessments and procedures. When a patient requires medical

care that is outside the scope of LRCHC clinical services, consultation with other specialists are

facilitated through the clinic’s referral system and the Indian Health Service PRC(purchase referral care).


Once a month, a podiatrist (foot specialist) sees patients at LRCHC. Podiatry provides medical and surgical care for people with foot, ankle, and lower leg problems. They diagnose illness, treat injuries and may perform surgery involving the lower extremity


Two times a month, an OB/GYN specialist sees female patients at LRCHC. (S)He has particular expertise in pregnancy, childbirth, disorders of the reproductive system, including preventive care, prenatal care, detection and treatment of STD (sexually transmitted diseases) Pap test screening, oncology, and family planning.


Three times a week, optometry services are provided at LRCHC. 

Services provided in optometry:

Routine eye exams; eye disease detection, diagnosis, treatment or referral; fitting and dispensing of glasses; fitting and dispensing of contact lens; low vision testing and rehabilitation; special testing to rule out side-effects of high risk medications; post operative exams following cataract, capsulotomy, glaucoma and Lasik surgeries; pharmaceutical treatment for external eye diseases and glaucoma; foreign body removal; well child screenings; CDL exams, DMV referral exams and other vocational eye exams.

We are happy to serve our communities and we welcome all patients and look forward to meeting new patients in the future.

Benefits of choosing a primary care provider (PCP):


A primary care provider (PCP) is a health care practitioner who sees people that have common medical problems. Your PCP is often involved in your care for a long time, so it is important to select someone with whom you will work well.
A PCP is your main health care provider in non emergency situations. Your PCP's role is to:
• Provide preventive care and teach healthy lifestyle choices
• Identify and treat common medical conditions
• Assess the urgency of your medical problems and direct you to the best place for that care
• Make referrals to medical specialists when necessary

Choosing a provider:

• They get to know you on a more personal level.
• They get to know your medical history.
• They get to know your lifestyle and habits.
• They are able to notice significant changes in your health through your appearance, mood, affect, etc.
• They work with you to develop and carry out a health care plan.
• You do have the choice to change your PCP if other qualified providers are available.



List and Credentials of Lake Roosevelt Community Health Centers’ providers:

Maria Trevino.jpg
Maria Trevino, M.D.

Has been working at LRCHC since 2011. She is a Family Practitioner & worked at Community Health Centers and Indian Health Clinics in Texas, California, Minnesota and Washington since completing medical training in 1985. She is originally from the Philippines and has been a U. S. citizen since 1975. She enjoys crocheting, traveling, and hopes to do medical missions again. She has 4

children and is looking forward to having more grandchildren.

Susan Solomon-Hopkins, MSN, FNP-C Advanced Registered Nurse Practitioner

Graduated from Gonzaga University. Has experience in Acute Care, Intensive Care, Emergency Care, Rural Health, and Native Health. She serves as commissioner (Position #4) on the Board of Commissioners for the Ferry County Public Hospital District.
She lives in Keller with her husband and two young children and loves being a part of a community that cares and looks out for one another.
She loves animals, nature, and learning new things.

Sara A. Martin-Washo, DNP-FNP-C, -BC, MPH, MBA

Medical Director

Doctor of Nursing Practice




Family Practice

Public Health

Business Administration

Medical Anthropology

Sleep Medicine



Board Certifications:







Boise State University

University of Washington

Benedictine University

Seattle University



Family Practice, Public Health, Pulmonary, Neurology, and Sleep Diagnostics

Rebecca (Becky) Stillwell, FNP-ARNP-C

Graduated from Gonzaga University in 2018.

Has experience in Acute Care, Intensive Care, Post-acute Care, Chronic and Acute Disease Management.

She is married with two adult children.  She enjoys the outdoors and spending time with family and friends. And is also a long-time resident of Inchelium and involvement in community events.

Rita Warner.jpg
Rita Warner PA-C

Has been at LRCHC since 2016.  She has practiced as a certified physician assistant since graduating from the PA program at the University of North Dakota in Grand Forks in 2004.  She is married with two children, two grandchildren and one great grandchild. She enjoys spending time with family,  nature, and travel.

Dave Colvin.jpg
David Colvin, DNP-FNP, ARNP
Family Practice Physician

Dr. Colvin, Graduated from Washington State University. Has experience in Family Practice, Chronic Disease, Lacerations, and Cryotherapy. Has been with LRCHC since 2018.



Monday – Friday

7:30AM – 4 PM

P: 509-722-7006

F: 509-722-3643

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