Substance Use Services in Glendale, AZ Personalized Psychiatric Care For Substance Use and Co-Occurring Mental Health Concerns
At Shamlock Behavioral Health, Dr. Kerubo Happiness Nyachieo provides psychiatric care for substance use concerns, including evaluation, diagnosis, medication management, and ongoing support. Through secure telepsychiatry appointments or in-person visits in Glendale, Arizona.

What Is Substance Use Disorder?
Substance use disorder is a health condition involving a pattern of alcohol or drug use that becomes difficult to control or continues despite negative effects on daily life, relationships, work, school, or health. Symptoms can range from mild to severe, and treatment depends on each person’s needs.
Substance use does not always look the same for everyone. Some people may notice increasing use, difficulty cutting back, cravings, or problems caused by continued use. Others may seek help because substance use is affecting their mental health or daily responsibilities.
A psychiatric evaluation can help clarify your concerns and determine what type of care may be appropriate.
Psychiatric Care for Substance Use in Glendale, AZ
Substance use and mental health concerns can occur together. Anxiety, depression, PTSD, bipolar disorder, and other mental health conditions may overlap with substance use, making a complete psychiatric assessment an important part of care.
At Shamlock Behavioral Health, substance use care looks at more than the substance itself. Dr. Kerubo considers your symptoms, mental health history, current medications, substance use patterns, and treatment goals when developing your care plan. Treatment may include:
- Psychiatric evaluation and assessment
- Diagnosis when appropriate
- Medication management
- Monitoring your response to treatment
- Support for co-occurring mental health concerns
- Referrals to additional services when a higher level of care is needed

Substance Use Evaluation in Glendale, AZ
If substance use has become difficult to manage or is affecting your everyday life, a psychiatric evaluation can help you understand what is happening and what steps may be appropriate.
During an evaluation, Dr. Kerubo may discuss your:
- Current substance use and concerns
- Mental health symptoms
- Medical and psychiatric history
- Current medications
- Previous treatment
- Daily functioning and relationships
- Treatment goals
Our goal is to understand the full picture rather than focus on one symptom or concern.
If substance use and another mental health condition are occurring together, identifying both concerns can help guide a more complete treatment plan.
Substance Use and Co-Occurring Mental Health Conditions
Substance use and mental health conditions can affect each other. People experiencing substance use disorders may also experience conditions such as anxiety, depression, PTSD, or bipolar disorder. Because symptoms can overlap, a careful evaluation can help distinguish what you are experiencing and guide treatment.
At Shamlock Behavioral Health, Dr. Kerubo Happiness Nyachieo dose address substance use concerns alongside mental health symptoms when clinically appropriate. This may be especially important if you have noticed changes in:
- Mood or emotional wellbeing
- Sleep
- Concentration
- Relationships
- Work or school
- Motivation
- Daily functioning
Conditions That May Be Associated With Substance Use
Substance use can involve different types of substances and may occur alongside other mental health concerns.
Shamlock Behavioral Health can provide psychiatric evaluation and care related to concerns involving:
Alcohol Use
Alcohol use can become difficult to control and may affect mood, relationships, sleep, work, or daily responsibilities.
Opioid Use
Opioid use can include prescription opioids or other opioids and may require careful psychiatric and medical evaluation.
Prescription Medication Misuse
Using prescription medication differently from how it was prescribed can create concerns that may require professional assessment and ongoing monitoring.
Marijuana Use
Regular or problematic marijuana use may affect mood, motivation, concentration, or daily functioning for some individuals.
Cocaine and Stimulant Use
Cocaine and other stimulants can affect mood, sleep, anxiety, and overall functioning.
Co-Occurring Mental Health Concerns
Substance use may occur alongside depression, anxiety, PTSD, bipolar disorder, or other psychiatric concerns. A comprehensive evaluation can help identify overlapping symptoms and treatment needs.
Medication Management for Substance Use Disorders
Medication may be part of treatment for certain substance use disorders. Depending on the substance involved and your individual situation, medications may be considered as part of a broader treatment plan.
Medication management allows your provider to review your symptoms, monitor your response, discuss concerns or side effects, and make treatment adjustments when clinically appropriate.
When substance use occurs alongside a mental health condition, medication management may also address psychiatric symptoms as part of your overall care.
Treatment is individualized. The right approach depends on your symptoms, history, current medications, and treatment goals.
What to Expect During Your First Appointment
Your first appointment is an opportunity to talk openly about what you have been experiencing.
Dr. Kerubo may ask about your substance use, mental health symptoms, medical history, medications, previous treatment, and how your concerns are affecting your daily life. You can also discuss your questions and treatment goals.
Based on the evaluation, you will receive guidance about appropriate next steps. Your treatment plan is developed around your individual needs rather than using the same approach for everyone.
Online & In-Person Substance Use Services in Glendale, AZ
Shamlock Behavioral Health provides online telepsychiatry and in-person substance use services in Glendale, AZ for individuals seeking professional psychiatric support for alcohol use, prescription medication misuse, opioid use, stimulant use, and other substance-related concerns.
Dr. Kerubo Happiness Nyachieo provides substance use evaluations, psychiatric assessments, diagnosis, medication management, and ongoing follow-up care based on your individual needs.
When substance use occurs alongside anxiety, depression, PTSD, bipolar disorder, ADHD, or other mental health conditions, both concerns can be considered as part of your treatment plan.
Patients can receive care through secure telepsychiatry appointments across Arizona or schedule in-person visits in Glendale, AZ, providing flexible access to ongoing psychiatric support and medication management when clinically appropriate.
Psychiatric Conditions We Evaluate
Our psychiatric providers evaluate and treat a wide range of mental health conditions, including.
Anxiety
Depression
ADHD
OCD
PTSD
Panic Disorder
Sleep Disorders
Mood Disorders
Anger Management
Substance Use
Each treatment plan is personalized based on your diagnosis, medical history, and current medications. Our team closely monitors your progress and makes adjustments as needed to ensure you’re achieving the best results.

Meet Dr. Kerubo Happiness Nyachieo
Experienced Psychiatric Provider in Glendale, Arizona
Dr. Kerubo Happiness Nyachieo is a licensed and board-certified Psychiatric Mental Health Nurse Practitioner with more than 20 years of experience in mental health care.
She provides psychiatric evaluations, medication management, diagnosis, and substance use services for children age 8+, adolescents, adults, and seniors through online and in-person care.
- Licensed & Board-Certified PMHNP
- 20+ Years of Mental Health Experience
- Online & In-Person Psychiatric Care
- ✔ Substance Use Services & Medication Management
- Same-Day Appointments Available
- Telepsychiatry Across Arizona
Why Choose Shamlock Behavioral Health For Substance Use & Addiction In Glendale, AZ
Compassionate, Personalized, and Evidence-Based Psychiatric Care
Experienced Psychiatric Care
Dr. Kerubo Happiness Nyachieo is a licensed and board-certified Psychiatric Mental Health Nurse Practitioner with more than 20 years of experience in mental health care.
Personalized Treatment
Your care is based on your symptoms, history, substance use concerns, treatment goals, and response to care.
Online & In-Person Options
Choose telepsychiatry or in-person psychiatric appointments based on your needs and availability.
Same-Day Appointments
Same-day appointments are available for patients seeking timely psychiatric care.
Care Across Arizona
Telepsychiatry services are available across Arizona, providing access to psychiatric care beyond the Glendale area.
Schedule Your Substance Use Services with Shamlock Behavioral Health in Glendale, AZ
If substance use is affecting your mental health, relationships, work, or daily life, professional support can help you understand your options.
Shamlock Behavioral Health provides personalized substance use services through online telepsychiatry and in-person psychiatric care in Glendale, AZ. We are here to help you.
FAQs About Medication Management
Medication management is ongoing psychiatric care that involves reviewing your symptoms, medications, treatment response, and potential side effects. Your provider uses this information to determine whether your current treatment should continue or be adjusted when clinically appropriate.
A psychiatric evaluation may be needed before starting medication so your provider can understand your symptoms, medical history, current medications, and treatment needs. The appropriate starting point depends on your individual situation.
Your provider may review your current symptoms, treatment progress, medications, side effects, and concerns. Based on the evaluation, your treatment plan may remain the same or be adjusted when clinically appropriate.
The frequency of appointments depends on your condition, medication, treatment response, and individual needs. Your provider will recommend an appropriate follow-up schedule.
Medication may be adjusted when clinically appropriate based on your symptoms, treatment response, side effects, and overall treatment needs. You should not stop or change a prescribed medication without discussing it with your healthcare provider.
Yes. Shamlock Behavioral Health offers secure telepsychiatry and online psychiatric care for eligible patients in Arizona and Texas.
Medication management may be part of treatment for conditions such as ADHD, anxiety, depression, bipolar disorder, PTSD, OCD, panic disorder, sleep-related concerns, and some substance use or co-occurring mental health concerns.
Yes. Shamlock Behavioral Health accepts Oscar, Surest, UMR, United Healthcare, Optum, Evernorth Health Services, and Carelon Behavioral Health.
