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Dr. Brian Sebastian, MD
Internal Medicine* Age 56
Dr. Brian Sebastian, MD

Offers telehealth

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Dr. Brian Sebastian, MD is an Internist in Sonoma, CA.
Dr. Brian Sebastian, MD
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Dr. Brian Sebastian, MD

Internal Medicine* Age 56
Sonoma, CA
Accepting new patients
29 years of experience

Offers telehealth

Dr. Brian Sebastian, MD is an Internist in Sonoma, CA.
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About Dr. Brian Sebastian, MD

Dr. Sebastian graduated from Duke University School of Medicine in 1997 and completed a residency at GeorgeTown University. Dr. Brian Sebastian, MD is an Internist in Sonoma, CA and has 29 years experience. Dr. Sebastian currently practices at Marinhealth Primary Care | A UCSF Health Clinic and is affiliated with Sonoma Valley Hospital and Marinhealth Medical Center. Dr. Sebastian has experience treating conditions like All Headaches (incl. Migraine) among other conditions at varying frequencies. Dr. Sebastian's office accepts new patients and telehealth appointments. Dr. Sebastian is board certified in Internal Medicine and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Experience Check

Enter a condition or procedure
All Headaches (incl. Migraine)
Secondary Hypertension
Secondary Renovascular Hypertension
All Headaches (incl. Migraine)
Secondary Hypertension
Secondary Renovascular Hypertension
All Headaches (incl. Migraine)
Secondary Hypertension
Secondary Renovascular Hypertension
Arterial Blood Gas Test (ABG)
Immunization Administration
Limb Pain
Intestinal Diverticulitis
Joint Pain
Urinary Incontinence
Thrush
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Sleep-Related Leg Cramp
Electrocardiogram (EKG)
Fever
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Muscle Cramping
Muscle Spasm
Acute Upper Respiratory Infection
Mild Asthma
Foot Infection
Diabetes Counseling
Urinary Tract Infection (UTI)
Acute Lower Respiratory Infection
Acute Bronchitis
Nail Infection
Shortness of Breath
Tobacco Use Disorder
Nausea
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Pharyngitis
Constipation
Fecal Occult Blood Test for Colorectal Cancer
Abdominal Pain
Achilles Tendinitis
Acne
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Actinic Keratosis
Acute Deep Vein Thrombosis (DVT)
Acute Pharyngitis
Acute Sinusitis
Acute Venous Embolism Thrombosis
ADHD and-or ADD
Adhesive Capsulitis Shoulder
Administrative Physical
Allergic Conjunctivitis
Allergic Rhinitis
Altitude Sickness
Anemia
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Animal Allergies
Ankle Sprains and Strains
Anxiety
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Arthritis
Arthritis of the Elbow
Asthma
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Asymptomatic Post-Menopausal Status
Ataxia
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Atherosclerosis
Atopic Dermatitis (Eczema)
Atrophic Vaginitis
Back Pain
Bedsores
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Benign Chronic Pain Syndrome
Bladder Infection
Blood in Urine (Hematuria)
Boil
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Bronchiectasis
Bronchitis
Bunion
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Bursitis
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Calcium Metabolism Disorders
Candidiasis of Skin and Nails
Carpal Tunnel Syndrome
Cellulitis
Chest Pain
Chest Wall Pain Syndrome
Chronic Deep Vein Thrombosis (DVT)
Chronic Depression (Dysthymia)
Chronic Fatigue Syndrome
Chronic Neck Pain
Chronic Pain
Chronic Prostatitis
Chronic Sinusitis
Cold Sore
Common Cold
Confusion
COPD (Chronic Obstructive Pulmonary Disease)
Cough
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Cyclothymia (Chronic Mood Disorder)
Deep Vein Thrombosis (DVT)
Dehydration
Dermatitis Due to Drugs
Dermatitis Due to Substances Taken Internally
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Diarrhea
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Difficulty With Walking
Dizziness
Down Syndrome
Dry Eyes
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Dysentery
Dyslipidemia
Dysphagia
Earwax Buildup
Eczema and Contact Dermatitis
Emphysema
Enlarged Prostate (BPH)
Enteritis
Essential Tremor
Familial Hypercholesterolemia
Fibromyalgia
Foot Sprain
Gait Abnormality
Ganglion Cyst
Gas-Bloat Syndrome
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastroptosis
Genital Herpes
Genital Warts
Gout
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Hair Loss
Hammer Toe
Headache
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Heart Disease
Heart Palpitations
Heartburn
Hemorrhoids
Hernia
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Herpes Simplex Infection
Herpes Zoster Without Complication
Hidradenitis Suppurativa
Hip Pointer
Hives
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Hydrocele
Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hypertension
Hypogonadism
Hypokalemia
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Influenza (Flu)
Ingrown Nail
Insomnia
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Interstitial Cystitis
Intertrigo
Intestinal Diverticulosis
Iodine Deficiency
Iron Metabolism Disorders
Irritable Bowel Syndrome
Itchy Skin
Jock Itch
Leg and Foot Ulcers
Leukocytopenia
Limb Swelling
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Liver Damage from Alcohol
Long COVID Disorder
Low Back Pain
Magnesium Metabolism Disorders
Malaise and Fatigue
Malnutrition
Mastodynia
Menopausal and Postmenopausal Disorders
Menstrual Disorders
Migraine
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Mineral Metabolism Disorders
Moles (Benign Skin Lesions)
Mood Disorders (Dysthymia and Cyclothymia)
Muscle Weakness
Nail and Nail Bed Infection
Nasopharyngitis
Neck Strain (incl. Whiplash Injury)
Neurogenic Bladder
Nighttime Urination (Nocturia)
Noninfectious Gastroenteritis and Colitis
Obesity
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Onychomycosis
Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Hand
Osteoarthritis of Hand or Wrist
Osteoarthritis of Hip
Osteoarthritis of Hip and Thigh
Osteoarthritis of Knee
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Osteopenia
Osteoporosis
Otitis Media
Outer Ear Infection
Overactive Bladder
Overweight
Painful Urination (Dysuria)
Patellofemoral Pain Syndrome (PFPS)
Pericardial Disease
Peripheral Autonomic Neuropathy
Peripheral Nerve Disorders
Phlebitis and Thrombophlebitis
Phosphorus Metabolism Disorders
Pinkeye (Conjunctivitis)
Plantar Fasciitis
Pneumonia
Pollen Allergy
Polymyalgia Rheumatica (PMR)
Polyneuropathy
Polyuria
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Postherpetic Neuralgia
Postnasal Drip
Prostatitis
Proteinuria
Radiculopathy
Rash
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Raynaud's Disease
Restless Leg Syndrome
Ringworm
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Rosacea
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Salivary Gland Stones and Inflammation
Sciatica
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Sebaceous Cysts
Sexually Transmitted Diseases (STDs)
Shingles
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Shoulder Tendinitis and Tenosynovitis
Sinus Bradycardia
Sinus Tachycardia
Sinusitis
Sleep Apnea
Sprains and Strains (incl. Muscle Tear)
Strep Throat
Stye
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Swine Flu
Symptomatic Menopause
Tension Headache
Testicular Dysfunction
Thyroid Goiter
Tinnitus
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Tonsillitis
Torticollis
Transient Ischemic Attack (TIA)
Tremor
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Trigeminal Neuralgia
Urinary Hesitancy
Urinary Stones
Vaginitis or Vaginosis
Venous Embolism and Thrombosis
Venous Insufficiency
Vertigo
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Viral Hepatitis
Viral Infection
Vitamin B Deficiency
Vitamin B12 Deficiency
Vitamin D Deficiency
Warts
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Wheezing
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Yeast Infections
Abscess or Cyst Drainage or Aspiration
Abscess or Fluid Incision and Drainage
Incision and Removal of Foreign Object
Puncture Aspiration
Wellness Examination

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Northern CA Cigna + Oscar Open Access Plus EPO
    Northern CA Cigna + Oscar LocalPlus EPO
  • Advantage Health Solutions HMO
  • First Health (Coventry Health Care) PPO
  • Curative EPO
    Curative PPO Plus
    Curative PPO
  • Canopy Health HMO
  • CA Employer Group Plans HMO
    CA Healthnet PPO
    SmartCare Network Large Group HMO
    CA WholeCare Network HMO
  • National POS
    Choice POS
    Choice Care PPO
  • Select PPO
    Advantage Preferred DirectAccess Plus PPO
  • Blue Card High Performance Network HPN
    Blue Card PPO
  • Premier Care Network Plus - Innovation Health
    Choice Plus POS II
    Deductible Plan CA Members Only HMO
    Aetna
    Elect Choice (Open Access) EPO
    AWH Northern CA HMO
    Open Choice PPO
    Managed Choice (Open Access) POS
  • California Care Large Group HMO
    Pathway EPO
    Prudent Buyer Large Group CA PPO
    Prudent Buyer Small Group CA PPO
    Prudent Buyer Individual CA PPO
    California Care Small Group HMO
  • Nexus Open Access
    Choice Plus POS
    SignatureValue - CA HMO
    Options PPO
    Medica Choice
  • Western Health Advantage
  • Bronze Full 4500 PPO
    Bronze 60 SHOP PPO
    Platinum 90 PPO
    Silver 70 PPO
    Blue Shield of California

Where Dr. Brian Sebastian, MD Sees Patients

  1. 1 Marinhealth Primary Care | A UCSF Health Clinic
    651 1st St W Ste H, Sonoma, CA 95476
    Icon Directions Right Arrow Directions Phone Icon (707) 938-3870

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Telehealth Options
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Meet Dr. Brian Sebastian, MD

Specialties*
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
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FAQs About Dr. Sebastian's Practice

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Brian Sebastian, MD. To arrange an appointment, call the number on Dr. Sebastian's profile.

Dr. Sebastian frequently treats the following conditions: All Headaches (incl. Migraine). See more on Sharecare.

Dr. Brian Sebastian, MD is affiliated with Sonoma Valley Hospital and Marinhealth Medical Center.

Yes, Dr. Brian Sebastian, MD holds board certification in Internal Medicine.
Training & Medical Education
Medical Education
  • Duke University School of Medicine
    1997
Medical Education
Board Certifications
  • Internal Medicine
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
Residency Hospital
  • GeorgeTown University
Residency Hospital

Hospitals Where Dr. Brian Sebastian, MD Practices

  • Sonoma Valley Hospital

    347 Andrieux St, Sonoma, CA

  • Marinhealth Medical Center

    250 Bon Air Rd, Greenbrae, CA

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