
Expertise:
- Bipolar disorder
- PTSD
- Schizophrenia
- Substance use disorders
- Depression and anxiety
Christina Barnes, PMHNP-BC
Board-Certified Psychiatric Nurse Practitioner

Christina Barnes is a dedicated Psychiatric-Mental Health Nurse Practitioner (PMHNP-BC) with 27 years of experience providing compassionate, evidence-based mental health care. With a strong foundation in both nursing and psychiatry, she is committed to helping individuals navigate the challenges of mental illness and achieve emotional well-being.
After working 3 years as a Registered Nurse in mental health, Christina felt there were more ways she could challenge herself and expand her abilities to provide those she serves with more practical tools. She is passionate about helping those who are suffering, not just with words of encouragement but with real, practical support. She believes compassion should be backed by action- whether its offering a helping hand, finding solutions to ease someone’s burden, or simply being present when they need it most. Christina is committed to making a meaningful difference by turning empathy into tangible help that truly improves lives.
Christina earned her Master of Science in Nursing (MSN) from Arizona State University and holds board certification in psychiatric-mental health nursing. With a passion for holistic, patient-centered care, she is skillful in assessing, diagnosing, and treating a wide range of psychiatric conditions, including anxiety, depression, bipolar disorder, PTSD, schizophrenia, and substance use disorders.
In her clinical practice, Christina utilizes a combination of medication management, psychotherapy, and lifestyle interventions to tailor treatment plans that meet each patient’s unique needs. She believes in fostering a safe and supportive environment where individuals feel empowered to take an active role in their mental health journey. Throughout her career, Christina Barnes has worked in diverse settings,
including hospitals, outpatient clinics, community health centers, and private practice.
Christina sees patients 18 years and older.
Christina sees patients at the MESA office.
Insurance Accepted

Christina accepts the following insurance:
- AHCCCS plans: Molina Complete Care (formerly Magellan Complete Care)
- Aetna
- Aetna-Banner
- Most BlueCross/BlueShield Plans
- Cigna/Evernorth
We are happy to assist you in filing your insurance claim as a courtesy to you. However, please note that knowledge of your insurance contract and its limitations are not our responsibility.
Services may be covered in full or in part by your health insurance or employee benefit plan. If you would like utilize out-of-network coverage through your insurance provider, we will provide you with an insurance superbill to assist you in filing a claim with your own individual insurance carrier.
For more information about Insurance, Rates and Payment, please click below.