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Address

2355 East Camelback Road Suite 625 Phoenix, AZ 85016

Phone

480-535-0363

Hours

• Monday: 7:00 AM – 5:20 PM
• Tuesday: 7:00 AM – 5:20 PM
• Wednesday: Closed
• Thursday: 7:00 AM – 5:20 PM
• Friday: 7:00 AM – 5:20 PM
• Saturday: 7:00 AM – 5:20 PM
• Sunday: Closed

Insurances Accepted

  • Aetna
  • AHCCCS
  • AmeriBen
  • Champ VA
  • Carelon
  • Cigna
  • ComPsych
  • Contigo Health
  • DMBA
  • Devoted Health
  • EMI Health
  • The Holman Group
  • Humana
  • Magellan Health
  • Medicare
  • Meritain Health
  • Optum
  • Tricare
  • TriWest CCN
  • United Healthcare
  • University Health Plans
  • Uprise Health

Dallas Martell, DNP, APRN, PMHNP-BC

Psychiatric Mental Health Nurse Practitioner

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About Andrew Nichols, NP

Andrew Nichols, NP has over 10 years of healthcare experience spanning both military and civilian nursing. Born and raised in Houston, Texas, Andrew brings a sense of community to everything he does, and that same grounded, personal care carries into every patient interaction at Serenity.

Education and Background

Andrew earned his advanced practice degree from Texas State University and pursued specialized training in psychiatric mental health care. He served as a Lieutenant in the U.S. Navy, working as a Critical Care and En Route Care Nurse at Naval Hospital Okinawa and with the 3d Medical Battalion.
He joined Serenity drawn by the practice’s commitment to interventional treatments, including TMS and ketamine therapy, that go beyond conventional options to offer patients real, evidence-based paths forward.

Care Philosophy

Andrew approaches each session by staying present and grounded during even the most difficult moments. He meets every patient with understanding rather than judgment, and with care that is guided by clarity, honesty, and a genuine belief that treatment works best as a collaborative process.

What to Expect

In your first visit, Andrew will take time to understand what has been going on and what matters most to you before anything else. From there, you will build a plan together, one that feels manageable and effective. He listens closely and makes sure nothing important gets missed.

Personal Interests

When Andrew is not with patients, you will likely find him at the gym, reading a book, or practicing mindfulness. His greatest joy, though, is time with his kids, including volunteering at their school where he leads science experiments and happily takes on lunchtime duty.

About Dallas Martell, DNP, APRN, PMHNP-BC

Dallas Martell, DNP, APRN, PMHNP-BC, is a psychiatric mental health nurse practitioner at Serenity’s Biltmore, AZ location. He provides compassionate, evidence-based care for individuals struggling with conditions including depression, anxiety, PTSD, OCD, ADHD, and more.

Dallas earned his Bachelor of Science in Nursing from California State University, Sacramento, and his Doctor of Nursing Practice from Arizona State University. Before joining Serenity, he served as a nurse in the Army for over 14 years and spent much of his career as a nurse in the trauma ICU. These experiences gave him a deep understanding and compassion for mental health challenges, especially PTSD, and inspired him to pursue a career in mental health.

Dallas’s core values of empathy, compassion, and genuine connection guide his approach to care. He believes in a holistic approach to mental wellness, incorporating techniques such as mindfulness, deep breathing exercises, and yoga into his practice. His goal is to ensure every patient feels heard, supported, and confident in their journey toward better mental health.

Outside of the clinic, Dallas enjoys spending time outdoors playing golf, which he considers his happy place. He also loves listening to country music and watching Marvel movies.

Your path to better mental health begins here—schedule an appointment with Dallas at Serenity Mental Health Centers in Biltmore, AZ, today.

Locations

Biltmore

Biltmore

Austin, TX Mental Health Clinic

2355 East Camelback Road Suite 625 Phoenix, AZ 85016
Open Mon- Sat 7 AM – 7 PM Sunday: Closed

Reviews

*Individual results are not guaranteed and may vary from person to person. Images may contain models.