What do addiction medicine doctors do? They diagnose and treat substance use disorders the same way other physicians treat diabetes, asthma or heart disease: with a full medical evaluation, evidence-based medication, regular follow-up and a plan built around your goals. An addiction medicine specialist treats problems with opioids, alcohol, methamphetamine, nicotine, cannabis, sedatives and other substances. They also manage withdrawal, cravings, related medical conditions and relapse risk over months and years.
At Blue Rhine Clinic in Modesto, CA, addiction care is physician-led. Dr. Gill is board certified in addiction medicine and sees patients in person in Modesto and by telemedicine across California. This guide explains what the specialty covers, how it differs from other kinds of addiction care, and what happens when you see an addiction medicine doctor.
What is addiction medicine?
Addiction medicine is the medical specialty focused on preventing, diagnosing and treating substance use disorders (SUDs) and the health problems that come with them. It treats addiction as what it is: a chronic, treatable medical condition that affects brain circuits for reward, stress and self-control.
An addiction medicine physician is a licensed MD or DO with extra training and board certification in this field. Their work blends internal medicine, pharmacology, behavioral science and long-term disease management.
Is addiction medicine a specialty?
Yes. Addiction medicine is a recognized medical subspecialty in the United States. Physicians from many primary specialties, such as internal medicine, family medicine, emergency medicine and psychiatry, can earn board certification in it through the American Board of Preventive Medicine. Osteopathic physicians also have an addiction medicine certification pathway through the osteopathic boards.
Board certification tells you the doctor completed advanced training and passed a specialty exam. Many addiction medicine physicians also complete a fellowship. Dr. Gill completed addiction medicine fellowship training at the University of California, Irvine School of Medicine and is a Distinguished Fellow of the American Osteopathic Academy of Addiction Medicine (AOAAM).
What do addiction medicine doctors do day to day?
So what does an addiction medicine specialist do in practice? Far more than write prescriptions. Here is what the work looks like.
1. Complete medical and substance use evaluation
Your first visit is a detailed assessment. The doctor asks what you use, how much, how often, and for how long. They ask about withdrawal symptoms, past quit attempts, overdoses, mental health, pain, sleep, medications, family history and your goals. They then apply the DSM-5-TR criteria to confirm a diagnosis and rate it as mild, moderate or severe.
2. Medication treatment
Medication is one of the strongest tools in addiction medicine. An addiction medicine doctor knows which medicine fits which condition, how to start it safely, and how to adjust it.
- Opioid use disorder: buprenorphine (including Suboxone and other buprenorphine-naloxone forms) and extended-release naltrexone. Methadone for opioid use disorder is dispensed through licensed opioid treatment programs.
- Alcohol use disorder: naltrexone, acamprosate, disulfiram, and off-label options such as gabapentin or topiramate when they fit.
- Tobacco and nicotine: varenicline, bupropion and nicotine replacement therapy.
- Methamphetamine and other stimulants: no FDA-approved medication yet, but physicians use evidence-supported off-label combinations and behavioral treatments such as contingency management.
You can see how these medicines are used for specific conditions on our opioid use disorder and buprenorphine treatment and alcohol treatment in Modesto pages.
3. Withdrawal management
Withdrawal from alcohol, benzodiazepines and opioids can be miserable. Alcohol and benzodiazepine withdrawal can also be dangerous. An addiction medicine doctor assesses withdrawal risk, decides whether outpatient care is safe, prescribes medication to control symptoms, and escalates care when needed. Learn more about our alcohol withdrawal treatment in Modesto.
4. Craving management and relapse prevention
Cravings drive relapse. Addiction medicine doctors treat cravings directly with medication and pair that with practical coping strategies, sleep repair, nutrition, exercise and structure. Relapse is treated as information that the plan needs adjusting, not as failure.
5. Treatment of co-occurring conditions
Many people with a substance use disorder also live with depression, anxiety, PTSD, ADHD, chronic pain, liver disease, high blood pressure or weight problems. An addiction medicine physician screens for these and treats them or coordinates care so nothing falls through the cracks.
6. Harm reduction and overdose prevention
Addiction medicine meets people where they are. That includes prescribing naloxone, teaching overdose response, discussing fentanyl risk, and keeping patients engaged in care even before they are ready to stop completely.
7. Monitoring and long-term follow-up
Your doctor tracks progress with follow-up visits, symptom check-ins and, when useful, lab work or urine drug testing. Testing supports treatment decisions. It is not a punishment. The plan changes as you get better.
Evaluation
A full medical and substance use history, and a diagnosis.
Medication
The right medicine, started safely and adjusted over time.
Withdrawal care
Risk checked, symptoms treated, higher care arranged if needed.
Cravings and relapse
Medication plus coping skills, sleep, nutrition and structure.
Other conditions
Mental health, pain, liver and weight care treated together.
Harm reduction
Naloxone, overdose teaching and staying in care.
Follow-up
Regular visits, check-ins and a plan that changes as you improve.
What doctor treats drug addiction?
Several types of clinicians treat drug addiction, and they work best as a team. The table below shows how their roles differ.
| Clinician | Training | What they do in addiction care |
|---|---|---|
| Addiction medicine physician (MD or DO) | Medical school, residency, plus addiction medicine board certification and often a fellowship | Diagnoses SUDs, prescribes and manages addiction medications, handles withdrawal, treats related medical problems, leads the overall plan |
| Addiction psychiatrist | Psychiatry residency plus addiction psychiatry subspecialty | Similar to addiction medicine, with a stronger focus on complex psychiatric illness |
| Primary care doctor | Family or internal medicine residency | Screens for SUDs, may prescribe buprenorphine or alcohol medications, refers complex cases |
| Nurse practitioner or physician assistant | Advanced practice training | Can prescribe many addiction medications within their scope, often under a physician-led model |
| Substance use counselor | Certification or licensure in counseling | Provides counseling, relapse prevention skills, motivational support and recovery planning |
| Psychologist or therapist | Graduate training in psychology or counseling | Delivers therapy such as CBT and motivational interviewing, treats co-occurring mental health conditions |
For most people, an addiction medicine doctor is the right first stop because they can evaluate the whole picture, start medication the same day when appropriate, and bring in counseling support. At Blue Rhine Clinic, Dr. Gill leads your medical care and a credentialed substance use counselor offers support by phone or video.
What conditions does an addiction medicine doctor treat?
| Condition | Common treatment tools |
|---|---|
| Opioid use disorder (heroin, fentanyl, pain pills) | Buprenorphine, naltrexone, naloxone, counseling |
| Alcohol use disorder | Naltrexone, acamprosate, disulfiram, withdrawal management |
| Methamphetamine and stimulant use disorder | Contingency management, counseling, off-label medication |
| Tobacco and vaping (nicotine) | Varenicline, bupropion, nicotine replacement |
| Cannabis use disorder | Counseling, sleep and anxiety support, withdrawal care |
| Sedative or benzodiazepine use | Supervised taper plans, co-occurring anxiety treatment |
| Food cravings and weight concerns linked to reward pathways | Medical weight management, craving control, lifestyle medicine |
Blue Rhine Clinic offers dedicated care for methamphetamine addiction treatment, smoking cessation therapy and medical weight loss for food cravings, along with opioid and alcohol care.
What happens at your first visit with an addiction medicine doctor?
Your first appointment is a conversation, not a lecture. Expect these steps:
- Intake. You complete secure forms before the visit so the doctor can prepare.
- History. The doctor reviews your substance use, health history, medications and goals.
- Diagnosis. The doctor confirms whether you meet criteria for a substance use disorder and how severe it is.
- Options. You discuss medication, counseling and other supports that fit your situation.
- Plan. You leave with clear next steps, prescriptions when appropriate, and a follow-up date.
Many follow-up visits can happen by video or phone. Our telemedicine addiction treatment in California lets eligible patients continue care from home.
When should you see an addiction medicine doctor?
See an addiction medicine specialist if any of these sound familiar:
- You have tried to cut back or quit and could not stay stopped.
- You feel sick, shaky, anxious or unable to sleep when you stop using.
- Cravings take up a lot of your day.
- Your use is hurting your health, work, relationships or finances.
- You use opioids and worry about fentanyl or overdose.
- You want medication support, not just willpower.
You do not need to hit rock bottom first. Early treatment is easier and works better.
How does an addiction medicine doctor fit into outpatient treatment?
Most addiction medicine care happens in an outpatient office. You live at home, keep working, and see your doctor on a regular schedule. Research and decades of clinical practice show that office-based treatment, especially with medication, keeps people in care and lowers overdose risk.
If you need a higher level of care, such as medically supervised inpatient withdrawal or residential treatment, your addiction medicine doctor arranges that referral and continues care afterward.
This article gives general information, not medical advice. For a diagnosis or treatment plan, talk with a physician.