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About Crystal

Crystal Hayes is a registered dietitian using nutrition education, food literacy and counseling to empower individuals to make healthy behavior changes for themselves, their families, and their communities. Her patients have told her that they are grateful for her trauma-informed care and whole person approach. She is always looking for opportunities to serve underserved populations, which has led her to do a wide variety of work including research in Lao PDR, creating quality foodservice for veterans, and counseling low income patients in rural Oregon. In any setting, she aims to model whole health and wellness, influence positive change, and commit to personal growth through continuing education. As a special interest, she advocates for rural health priorities, food security, and age-friendly care models.

Licensed States

California, Oregon

In-Network Carriers

Medicare, Tricare Select, Cigna Anthem BlueCross of California
Tricare Select with valid referral from a licensed MD/DO on the MyCatholicDoctor platform indicating medical necessity for nutrition therapy
Additional information may be needed to determine coverage for Diabetes Management, and requires coordination of care with at least one other MD/DO. Please send an email to [email protected] or submit a Benefits Inquiry for more details
This provider is not accepting new worker’s compensation assignments at this time.

Self-Pay Discounted Rates are available at this time. Service may be eligible for HSA reimbursement when deemed medically necessary by your PCP.

Services deemed medically necessary by a physician at MyCatholicDoctor may be covered by your insurance. Network coverage is determined by your referring physician’s participation. All other services are eligible for our Self-Pay Discounted Rates.

Services Offered

  • Medical nutrition therapy, defined as a nutrition-based treatment provided by a registered dietitian nutritionist which includes a nutrition diagnosis as well as therapeutic and counseling services.


Crystal Hayes, dietitian, sees pediatric, perinatal, adult & geriatric patients. She has worked in primary care for 2 years providing nutrition therapy for diabetes, weight management, gastrointestinal conditions, disordered eating, feeding problems, substance use, autoimmune & metabolic disease.
*Languages: English