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Rena Diem, Nurse Practitioner

Rena Diem, MSN, PMHNP, Psychiatry in Fort Collins, Colorado

Specialties:
ADHD Anxiety Attention & focus Depression/feeling down Panic attacks Self-esteem Stress management +48
Ages Served
15-64
Manages Medications
Yes
Accepts Insurance

About Rena Diem (She/Her)

Hello! I am a Psychiatric Mental Health Nurse Practitioner with LifeStance Health, and I support individuals working through anxiety, depression, trauma, and life’s everyday challenges. I believe each person has a unique story and path toward healing, and deserves to be heard in a safe, nonjudgmental, and empowering environment. Mental health struggles can feel overwhelming, but you don’t have to face them alone. My goal is for our work together to foster self-awareness, cultivate hope, and create a sense of security as you move forward.

I approach health from an integrative perspective, recognizing that navigating a complex, ever-changing world often requires a diverse set of tools and strategies. With an emphasis on medication management, treatment plans may also incorporate supportive therapy, lifestyle guidance, and recommendations for nutrition, herbs, and supplements.

I specialize in individuals ages 15 – 65 experiencing anxiety disorders, depression, and ADHD. I also work with those with a history of trauma, bipolar disorder, chronic health and pain disorders, and sleep disorders. As a former Certified Nurse Midwife, I am also knowledgeable in women’s health as well as pregnancy and postpartum mood and anxiety disorders.

Types of Care & Ages Served

Areas of Focus

Psychiatry/Medication Management

Treat and prevent mental health disorders using medication and therapy.

  • ADHD
  • Anxiety
  • Attention & focus
  • Depression/feeling down
  • Panic attacks
  • Self-esteem
  • Stress management
  • Anger issues
  • Autism: generally independent
  • Bipolar Disorder
  • Body image
  • Career & relationships (mid-life)
  • Chronic pain-related issues
  • Conditions caused by stress
  • Domestic violence & abuse
  • Eating issues: binging
  • Emotional abuse
  • Empty nesters
  • Fertility
  • First responder stress
  • Focus, concentration & memory
  • Gambling
  • Gender identity
  • General relationship issues
  • Grief & loss
  • Hair pulling & skin picking
  • Hoarding
  • Intellectual challenges: generally independent
  • Intense mood changes
  • LGBTQ+
  • Marital stress or divorce
  • Men's health/issues
  • Menopause & perimenopause
  • Military & veteran
  • Obsessive Compulsive Disorder
  • Other addictive behaviors
  • Other women's health concerns
  • Parenthood
  • Phobias
  • PMS & PMDD
  • Pornography/sexual behaviors
  • Post-partum depression & anxiety
  • Pre-conception
  • Pregnancy
  • Pregnancy loss
  • Premarital counseling
  • Self-injury or cutting
  • Sexual trauma
  • Sleep issues or insomnia
  • Social skills & communication
  • Sports performance
  • Stress from ongoing health issues
  • Trauma & PTSD
  • Unhealthy eating habits
  • Video game/internet

Languages

  • English

Education

  • Frontier Nursing University
  • University of Michigan
  • Vanderbilt University

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Frequently Asked Questions About Rena Diem

Please call us at 970-805-0416 to schedule an appointment with Rena Diem.

See what our patients are saying about Rena Diem

Myself and two of my family members are under Rena’s care. She has helped all three of us tremendously. She is very supportive, knowledgeable, realistic, respectful and caring. I feel like I’m talking to a friend during our visits. Can not come more highly recommended, she’s AMAZING!
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Katie C.

Katie C.

Aug 03, 2026
Google Google
Such a great listener. She makes extra time to really listen and she is so compassionate. I enjoy our appointments!
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Stephanie D.

Stephanie D.

Jul 09, 2026
Google Google
Dr Diem is the best! Professional, caring and always listening.
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Cynthia Ten E.

Cynthia Ten E.

Jul 10, 2026
Google Google
Wonderful
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Nick G.

Nick G.

Apr 06, 2026
Google Google
Excellent experience
Read Full Review
Kai U.

Kai U.

Mar 16, 2026
Google Google
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Rena Diem, Psychiatry in Fort Collins, Colorado

Rena Diem

Psychiatry in Fort Collins, Colorado

New patient?

Check availability and book your first appointment Call for Availability

Already have an appointment?

Video visit waiting room Join Now
Existing patient portal Sign in