Medically reviewed by Barbra Scheirer,
Psychiatric Mental Health Nurse Practitioner at Mighty Mental Health
Last medically reviewed: October 07, 2026
A psychiatrist is a medical doctor who specializes in mental health. Psychiatrists evaluate symptoms, review medical and family history, and diagnose conditions such as depression, anxiety, bipolar disorder, ADHD, and PTSD using standardized criteria like the DSM-5-TR. They can order lab tests to rule out physical causes, prescribe and monitor medication, and build treatment plans that may include therapy, lifestyle changes, and coordination with other providers. Whether you need a referral depends on your insurance:
PPO plans generally allow you to book directly, while HMO plans usually require a primary care referral first, and paying out of pocket typically requires none. Psychiatric nurse practitioners can also diagnose and prescribe in many states. Consider seeing a psychiatric provider when symptoms last more than a few weeks, interfere with work, school, or relationships, or when therapy alone has not been enough. Treatment is collaborative, and a diagnosis is a roadmap for care, not a label. If you are in crisis or having thoughts of self-harm, call or text 988 right away.
Mental health affects how we think, feel, and function every day, yet many people are unsure who to turn to when emotional struggles start to interfere with daily life. Questions tend to come up in a predictable order. What does a psychiatrist actually do? Can they diagnose me? Do I need a referral before I can book? This guide answers all three in one place, so you can decide on your next step with confidence.
What Is a Psychiatrist, and What Do They Do?
A psychiatrist is a medical doctor (an MD or DO) who specializes in mental health, including substance use disorders.[1] After medical school, psychiatrists complete a residency in psychiatry, and many pursue added training in areas such as child and adolescent, geriatric, or addiction psychiatry. Because they are trained in medicine, they look at mental health through both a psychological and a biological lens. Their work goes well beyond writing prescriptions.
Comprehensive Mental Health Evaluation
A first assessment typically covers your symptoms and how long they have lasted, your medical and family history, past treatments, current medications, substance use, sleep, and major stressors. When a physical condition could be contributing, such as a thyroid problem, a psychiatrist may order a physical exam or lab work to rule it out. If you want a step-by-step look, see what happens during a psychiatric evaluation and how long a psych evaluation takes.
Medication Management
Prescribing is one of the best-known parts of the role. Psychiatrists choose appropriate medications, adjust doses, monitor side effects, and track progress over time. Treatment works best when it is matched to the individual, and medication is often combined with psychotherapy rather than used alone.[4] You can learn more about what psychiatric medication management involves, whether a psychiatrist can prescribe on the first visit, and the side effects of psychiatric medications.
Treatment Planning and Care Coordination
After an evaluation, your provider develops an individualized plan. It may include medication, therapy, lifestyle adjustments, or referrals to psychologists, social workers, or primary care doctors. Psychiatrists often coordinate with those providers so your care fits together instead of happening in silos. Our overview of different types of psychiatric treatments explains the options.
Ongoing Monitoring and Support
Mental health treatment is rarely static. Follow-up visits track symptom changes, review side effects, and adjust the plan as your life circumstances change. The goal is long-term stability and relapse prevention, not just short-term symptom relief. Wondering about the schedule? Read how often you have to see a psychiatrist.
Can a Psychiatrist Diagnose Mental Illness?
Yes. Diagnosis is a central part of psychiatric practice. Psychiatrists compare your symptoms, history, and test results against standardized criteria, most commonly those in the DSM-5-TR, to determine whether you meet the criteria for a specific condition.[2]
Diagnosis matters because mental health symptoms overlap. Trouble sleeping, fatigue, and difficulty concentrating can appear in depression, anxiety, ADHD, trauma-related conditions, or an unrelated physical illness. An accurate diagnosis works as a roadmap: it points toward the therapies, medications, or lifestyle changes most likely to help, and it helps avoid treatment that doesn’t fit. For more on this, see how to get an accurate mental health diagnosis.
How the Diagnostic Process Works
Psychiatrists don’t make quick judgments. They gather information in layers (see also how psychiatrists diagnose their patients):
- Clinical interview: a detailed conversation about your symptoms, their intensity and duration, and their effect on daily life. With your permission, family members may add context.
- Medical and psychiatric history: past illnesses, medications, and family mental health history that may point to risk factors or underlying causes.
- Physical exam and lab tests: used to rule out conditions, such as thyroid or neurological problems, that can mimic psychiatric symptoms.
- Screening tools: standardized questionnaires that measure symptom severity and patterns in mood or behavior.
- Observation over time: tracking changes across visits, which can clarify a picture that one appointment can’t.
Some conditions can be identified in a single visit, while others take several appointments.
Conditions Psychiatrists Commonly Diagnose and Treat
- Anxiety disorders, including generalized anxiety, panic disorder, and social anxiety
- Depression and other mood disorders
- Bipolar disorder
- ADHD in children and adults
- Post-traumatic stress disorder (PTSD)
- Obsessive-compulsive disorder (OCD)
- Schizophrenia and other psychotic disorders
- Substance use and co-occurring disorders
You can browse the full list of psychiatric conditions we treat.
Psychiatrist vs. Psychologist vs. Therapist
These roles are often confused, but training and scope differ.
- Psychiatrists are medical doctors who diagnose conditions, prescribe medication, and treat complex psychiatric disorders, often alongside therapy recommendations.
- Psychologists hold doctoral degrees in psychology and provide therapy and psychological testing. In most states they cannot prescribe medication.
- Therapists and counselors, including licensed clinical social workers, marriage and family therapists, and professional counselors, provide talk therapy and coping strategies but do not prescribe medication.
Psychiatric nurse practitioners (PMHNPs) are advanced-practice nurses with specialized mental health training. In many states they can diagnose conditions, prescribe medication, and provide ongoing psychiatric care. Read more about psychiatric nurse practitioner vs. psychiatrist and whether a psychiatric nurse practitioner can prescribe medication. What sets psychiatric providers apart is the ability to combine medical expertise with mental health care for conditions that call for both therapy and medication.
Not sure which to see? Our guides on psychiatrist vs. psychologist and therapy vs. medication for depression and anxiety can help you decide.
When Should You See a Psychiatrist?
Everyone has emotional ups and downs. It may be time to reach out when:
- Symptoms such as sadness, anxiety, hopelessness, or irritability last more than a few weeks
- Mood changes interfere with work, school, or relationships
- You have intense mood swings or sudden emotional shifts
- Sleep, appetite, or concentration are significantly disrupted
- You struggle with focus, impulsivity, or hyperactivity
- You’ve tried therapy and want to explore whether medication could help
- You suspect a condition such as bipolar disorder, PTSD, or a psychotic disorder
You don’t have to wait for a crisis. Early intervention can lead to better outcomes, and psychiatric providers also help people manage long-term conditions and prevent relapse. For a fuller checklist, see signs a patient should see a psychiatrist.
If you are having thoughts of self-harm or suicide, call or text 988 (the 988 Suicide & Crisis Lifeline) or call 911 in an emergency.[6]
Do You Need a Referral to See a Psychiatrist?
It depends mostly on your insurance plan, your location, and how you pay.
PPO, HMO, and Self-Pay
- PPO plans generally let you see a specialist, including a psychiatric provider, without a referral.
- HMO plans typically require you to see a primary care provider (PCP) first, who refers you if it’s medically appropriate.[5]
- Self-pay patients usually don’t need a referral. See how much a psychiatrist costs with and without insurance.
- Community clinics and health systems may have their own internal referral requirements, even when insurance doesn’t.
Plan details vary, and Medicaid and Medicare Advantage plans have their own rules. The most reliable way to find out is to call the member services number on your insurance card. If coverage is your main question, start with are psychiatrists covered by insurance and how to find out if your doctor accepts Nevada Medicaid.
How to Get a Referral
If a referral is required, start with your PCP. Describe your symptoms honestly and don’t minimize how they affect your daily life, because that helps your doctor recommend the right next step.[3] A referral may include a written or electronic request to a specific provider or clinic, documentation supporting the need for psychiatric evaluation, and guidance on booking. Referrals can also come from a therapist, counselor, or school psychologist, or from a hospital after an acute episode. If you’re unsure where to begin, your insurer or a local mental health center can walk you through it. We also offer therapist referrals for patients who would benefit from talk therapy alongside medication.
How to Find a Psychiatrist
Finding the right provider is a personal process. Beyond credentials, you want someone who listens, understands your goals, and respects your preferences. Our guide on how to find a good psychiatrist you can trust goes deeper.
- Your insurance directory: search for in-network psychiatric providers in your area.
- Recommendations: ask your PCP or therapist for a trusted referral.
- Online directories: sites such as Psychology Today, Zocdoc, or Healthgrades let you filter by location, insurance, and specialty.
- Local clinics, hospitals, and universities: many offer psychiatric services. Our mental health resources in Las Vegas guide is a good starting point.
- Telehealth: online appointments can help if transportation or scheduling is a barrier.[7] Learn how a telehealth appointment works.
Before booking, ask about the provider’s specialties, treatment approach, and appointment availability. When you’re ready, here is how to schedule an appointment with a psychiatrist.
What to Expect at Your First Appointment
Your provider will ask detailed questions about your symptoms, review your medical and mental health history, ask about medications you’ve taken, and talk through sleep, stress, nutrition, and your goals for treatment. The visit usually ends with a recommended plan, which may include medication, therapy referrals, lifestyle changes, and a follow-up schedule. Care is collaborative, and you’re part of every decision.
To prepare, read what to expect at your first psychiatry appointment, questions to ask your psychiatrist, and what to tell your psychiatrist.
Psychiatric Care at Mighty Mental Health
Mighty Mental Health is a psychiatry and medication management office serving Las Vegas and Summerlin, NV, with both telehealth visits and in-office consultations. Care is provided by Psychiatric Mental Health Nurse Practitioner Barbra Scheirer, who creates personalized treatment plans that may include medication management, therapy recommendations, and long-term wellness strategies.
We work with Nevada Medicaid, CareSource, Silver Summit, Health Plan of Nevada, Molina, and Anthem. See our full list of accepted insurance. Coverage can change, so please confirm your benefits with your insurer. Even if your plan doesn’t require a referral, we’re glad to coordinate with your primary care provider or therapist, and if you do need one, we can guide you through the process.
To get started, call 702-479-1600 or contact us online.
Frequently Asked Questions
Do I need a referral to see a psychiatrist?
It depends on your insurance. PPO plans generally don’t require one, HMO plans usually do, and self-pay patients typically don’t. Check with your insurer to be sure, since plans and local clinic policies vary.
How long does it take for a psychiatrist to diagnose a condition?
It varies with the complexity of your symptoms and history. Some conditions can be identified in one visit, while others require several appointments for a thorough evaluation.
What is the difference between a psychiatrist and a therapist?
Psychiatrists are medical doctors who diagnose conditions and can prescribe medication. Therapists and counselors provide talk therapy and coping strategies but don’t prescribe. Many people benefit from using both, and providers often coordinate care.
Will I have to take medication if I see a psychiatric provider?
Not necessarily. Treatment plans are individualized and may include medication, therapy, lifestyle changes, or a combination. Any medication decision is made together with you and reviewed over time.
This article is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you are in crisis, call or text 988 or call 911.
References
- American Psychiatric Association. What Is Psychiatry?
- American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR).
- National Institute of Mental Health. Help for Mental Illnesses.
- National Institute of Mental Health. Mental Health Medications.
- HealthCare.gov. Health Insurance Plan and Network Types: HMOs, PPOs, and More.
- 988 Suicide & Crisis Lifeline.
- National Institute of Mental Health. What Is Telemental Health?
Written by Mighty Mental Health Editorial Team
Clinically reviewed by:
Barbra Scheirer, APRN, PMHNP-BC
The Mighty Mental Health Editorial Team develops and maintains educational content focused on psychiatry, mental health treatment, and medication management. Our articles are created to reflect evidence-based practice, current clinical standards, and a patient-centered approach to behavioral health care. Each piece is clinically reviewed by Barbra Scheirer, APRN, PMHNP-BC, to help ensure the information we publish is accurate, clear, relevant, and aligned with accepted standards in psychiatric evaluation, diagnosis, treatment planning, and medication management.
At Mighty Mental Health, we are committed to publishing trustworthy mental health information that supports informed decision-making for individuals and families seeking care. Our content is designed to make complex topics more understandable while maintaining a high standard of medical accuracy and professional integrity. Through clinical oversight, editorial review, and a focus on compassionate, evidence-based psychiatric care, we strive to provide reliable educational resources for those exploring mental health concerns, treatment options, and ongoing wellness support.